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Amazfit T-Rex Ultra Stainless Steel 47mm Waterproof Smartwatch with Heart Rate Monitor Sahara
Smartwatches

Amazfit T-Rex Ultra Stainless Steel 47mm Waterproof Smartwatch with Heart Rate Monitor Sahara

Key features:

  • 1.39" AMOLED Display 454x454
  • 500mAh Battery
  • WiFi / Bluetooth Connectivity
  • Durable Steel Construction
See full description

  • Battery Life

    Battery life shows how many days the smartwatch can operate without charging.


    It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


    For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


    Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


    The value is especially meaningful when comparing products from the same manufacturer.

  • Display Type

    AMOLED

    Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.

  • Waterproof

    Sea Swimming

    The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
  • See all
The product is not available for shipping to the selected country.
Product report

Description

Description

Up to 1,000 nits Brightness

The HD AMOLED display of the watch can reach a maximum brightness of 1,000 nits in bright outdoor light, providing exceptionally clear visibility in any environment.

316L Stainless Steel

Conquer the outdoors with the Amazfit T-Rex Ultra.

Made from ultra-strong 316L stainless steel, it is the perfect companion for your adventures.

Mud-resistant

Built to withstand all kinds of action, the patented mud-resistant bridge and buttons keep the watch's construction free from sediment and dust.

Ultimate Control

Display your data the way you want, using the touchscreen, buttons, or a combination of both.

Powerful and Accurate GPS Tracking

The watch uses L1 and L5 signals for incredibly accurate dual-band GPS positioning and supports six satellite systems for greater global coverage.

Offline Maps Support

Download an offline map from the Zepp app to the watch and your location on the map will be updated in real-time as you navigate with a corresponding route file.

Conquer Your Instinct

Better understand your surroundings with the built-in compass and barometer, along with environmental reminders and a range of other useful features.

A warrior in the gym

The watch can automatically detect 25 types of exercises in the Strength Training sport mode, tracking repetitions, sets, and rest time.

After your workout, the Zepp app will display your exercises and which muscle groups you are working. You can even save the names of up to 100 of your own variations for personalized training logs.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Beige
Release Date
2023
Screen Size
1.39 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
454x454 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth, Wi-Fi

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Wi-Fi

Ability to connect to wireless networks for internet access through the smartwatch.
Strap
Silicone
Case material
Stainless Steel

Case material

Stainless Steel
"The most popular material for constructing a case is more resistant to rust, impacts, and scratches compared to others, but with greater weight."

Features & Functions

Features & Functions
SMS, Caller ID, Application / Calls Notification

Features & Functions

SMS
The smartwatch can display SMS messages.
Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Misc Sports / Gym, Swimming, Climbing, Hiking, Cycling, Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
GPS, Altimeter, Barometer, Pedometer, Gyroscope, Accelerometer, Thermometer, Heart Rate, Oximeter, Sleep Monitoring, Compass

Sensors

GPS
Technology that allows for the detection of geographic location via satellite. Particularly useful for navigation through map applications such as Google Maps.
Altimeter
Like a barometer, an altimeter measures atmospheric pressure by translating it into altitude, aiding in faster GPS location detection for navigation applications, as well as tracking how many floors we have climbed for health applications.
Barometer
It measures atmospheric pressure to assist in faster GPS location detection for navigation applications, as well as tracking the number of floors climbed for health applications.
Pedometer

Recording steps and distance.

Gyroscope
A sensor that helps the device know its position in space. For example, it allows the device to understand when we turn our wrist to look at the screen.
Accelerometer
This sensor allows the device to perceive changes in acceleration. For example, with this sensor, it can count the steps we take when wearing it.
Thermometer
The device has a built-in thermometer.
Heart Rate

Embedded heart rate monitor.

Oximeter

Measure the amount of oxygen in the blood.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)

Compass
Updates our device with its orientation, assisting in the use of navigation applications such as Google Maps.
Protection
Splash Resistant
ATM Rating
10 ATM

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Sea Swimming

Waterproof

Sea Swimming

The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
MIL-STD-810
Yes

Battery

Battery Capacity
500 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
20 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
25 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
47 mm

Case Size

47
This size is usually intended for fruits with a circumference of over 20.5cm.
Weight
89 gr

AI Features

AI Voice Assistant
No
AI Training Coach
Yes
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (8)

Reviews

4.1
8
4.1
Review this product
  1. 4
  2. 3
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Easy synchronization
  • Accuracy in measurements
  • Screen
  • Durability
  • Battery life
  • Comfort
  • Sufficient number of features
  • Construction quality
  • Value for money

Reviews by our members

  • faskou78
    5
    0 out of 2 members found this review helpful
    faskou78

    Verified purchase

    This review is about the colour: Black

    Very good value for its price, accurate measurements, comfortable and easy to wear on the wrist even though I usually prefer larger watches. Excellent build quality and quite durable. By no means is it like a top tier Garmin but it is ideal and excellent for an entry level smartwatch combined with build quality that belongs to a higher price category.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • TASSOS_PANAGIOTOPOULOS
    4
    7 out of 7 members found this review helpful
    TASSOS_PANAGIOTOPOULOS

    Verified purchase

    This review is about the colour: Black

    After the Samsung Gear S3 Frontier, with which I was never satisfied (battery lasted 1 day, GPS that never worked), I ended up with this one.

    Owner for about 2 months:

    + The watch measures a lot and (I believe) accurately
    + GPS signal is "excellent"
    + User-friendly menus. Many options and watch faces
    + Battery depending on usage, 4-7 days
    + It hasn’t suffered from any knocks. I did put a screen protector on, of course. But the body is unaffected.
    + Screen with excellent brightness, day and night
    + Relatively strong beeper and very good and adjustable vibration
    + Relatively large screen but not huge. (I have presbyopia, the size is quite satisfactory)
    + Amazfit responds to emails and relatively quickly
    + Very easy mobile app

    - I noticed it’s a bit lacking in accuracy. With many tests regarding the sensitivity of automatic activity recognition, when I’m on the motorcycle it thinks I’m cycling.
    (with the Samsung I never had this specific problem).
    So I disabled cycling from automatic activity recognition.
    - It doesn’t have a speaker/microphone but you probably can’t have both water resistance and a microphone. So you can’t make calls on speakerphone.
    - It doesn’t have NFC (personally I don’t care)

    As another user mentioned:
    > I hope to find straps from abroad (along with a screwdriver)
    > I don’t know about service. I’m more concerned about the battery’s lifespan.
    > Theoretically it’s waterproof even in seawater. The truth is I’ll avoid it. If I can’t resist, at least I’ll rinse it with fresh water afterwards, as I’ve read you should.

    Additionally:
    > Heavy, you know you’re wearing it. You don’t look for it. That’s not necessarily a bad thing.
    > I haven’t yet found if and how I can have it connected to both the phone and BT handsfree, and be able to see the call on the watch but talk through the handsfree...
    I’ll ask the company about this...

    Finally, I don’t know how it compares to the new Trex 3. Probably the Trex 3 will be superior at least in price, since I got the Ultra for 380.

    I’ll return in the future with an updated review.

    December 2025: More than 1 year later:
    Fully satisfied. The battery is superb. It lasts at least 5 days with plenty of use/activity. It even reaches about 7 days with around 15% battery left.
    It does more than what I want.
    Of course, it doesn’t have a microphone and loudspeaker for calls, but I suppose that makes the watch more rugged since I’m not sure about the durability of similar watches in contact with water (and seawater).

    Translated from Greek ·
    Did you find this review helpful?
  • ubba
    4
    6 out of 8 members found this review helpful
    ubba
    This review is about the colour: Black

    I bought it in 6/2023, I wear it 24/7 and overall I am very satisfied with its use.
    POSITIVES:
    + Stainless steel case.
    + Battery life of over 2 weeks with training mode every 3 days.
    - Suitable for swimming, even has a DEPTH METER for light dives.
    + Very durable against impacts. It has no scratches despite accidental bumps on doors/handles, etc.
    + Regular updates and countless watch faces so you don't get bored.
    NEGATIVES:
    - Service??? I need a repairman here..., straps???
    - No microphone/speaker, only notification and call rejection.
    - Does not support NFC payments.

    Translated from Greek ·
    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Comfort
    • Moderate number of features
    • Value for money
    Did you find this review helpful?
  • 1
    0 out of 3 members found this review helpful
    Tasos_Makris5
    This review is about the colour: Black

    the previous T-Rex got water inside so in terms of waterproofing, 0. In terms of durability, like a dog

    Translated from Greek ·
    • Durability
    • Construction quality
    Did you find this review helpful?
  • 5
    alexis95

    Verified purchase

    This review is about the colour: Black

  • 4
    Zottun_Kaido

    Verified purchase

    This review is about the colour: Black

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Comfort
    • Value for money
  • 5
    Giannis Pantelaios 93

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 5
    spiros__g

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
  • faskou78
    5
    faskou78

    Very good value for its price, accurate measurements, comfortable and easy to wear on the wrist even though I usually prefer larger watches. Excellent build quality and quite durable. By no means is it like a top tier Garmin but it is ideal and excellent for an entry level smartwatch combined with build quality that belongs to a higher price category.

    Translated from Greek ·
    0
  • TASSOS_PANAGIOTOPOULOS
    4
    TASSOS_PANAGIOTOPOULOS

    After the Samsung Gear S3 Frontier, with which I was never satisfied (battery lasted 1 day, GPS that never worked), I ended up with this one.

    Owner for about 2 months:

    + The watch measures a lot and (I believe) accurately
    + GPS signal is "excellent"
    + User-friendly menus. Many options and watch faces
    + Battery depending on usage, 4-7 days
    + It hasn’t suffered from any knocks. I did put a screen protector on, of course. But the body is unaffected.
    + Screen with excellent brightness, day and night
    + Relatively strong beeper and very good and adjustable vibration
    + Relatively large screen but not huge. (I have presbyopia, the size is quite satisfactory)
    + Amazfit responds to emails and relatively quickly
    + Very easy mobile app

    - I noticed it’s a bit lacking in accuracy. With many tests regarding the sensitivity of automatic activity recognition, when I’m on the motorcycle it thinks I’m cycling.
    (with the Samsung I never had this specific problem).
    So I disabled cycling from automatic activity recognition.
    - It doesn’t have a speaker/microphone but you probably can’t have both water resistance and a microphone. So you can’t make calls on speakerphone.
    - It doesn’t have NFC (personally I don’t care)

    As another user mentioned:
    > I hope to find straps from abroad (along with a screwdriver)
    > I don’t know about service. I’m more concerned about the battery’s lifespan.
    > Theoretically it’s waterproof even in seawater. The truth is I’ll avoid it. If I can’t resist, at least I’ll rinse it with fresh water afterwards, as I’ve read you should.

    Additionally:
    > Heavy, you know you’re wearing it. You don’t look for it. That’s not necessarily a bad thing.
    > I haven’t yet found if and how I can have it connected to both the phone and BT handsfree, and be able to see the call on the watch but talk through the handsfree...
    I’ll ask the company about this...

    Finally, I don’t know how it compares to the new Trex 3. Probably the Trex 3 will be superior at least in price, since I got the Ultra for 380.

    I’ll return in the future with an updated review.

    December 2025: More than 1 year later:
    Fully satisfied. The battery is superb. It lasts at least 5 days with plenty of use/activity. It even reaches about 7 days with around 15% battery left.
    It does more than what I want.
    Of course, it doesn’t have a microphone and loudspeaker for calls, but I suppose that makes the watch more rugged since I’m not sure about the durability of similar watches in contact with water (and seawater).

    Translated from Greek ·
    7
  • ubba
    4
    ubba

    I bought it in 6/2023, I wear it 24/7 and overall I am very satisfied with its use.
    POSITIVES:
    + Stainless steel case.
    + Battery life of over 2 weeks with training mode every 3 days.
    - Suitable for swimming, even has a DEPTH METER for light dives.
    + Very durable against impacts. It has no scratches despite accidental bumps on doors/handles, etc.
    + Regular updates and countless watch faces so you don't get bored.
    NEGATIVES:
    - Service??? I need a repairman here..., straps???
    - No microphone/speaker, only notification and call rejection.
    - Does not support NFC payments.

    Translated from Greek ·
    6
  • 1
    Tasos_Makris5

    the previous T-Rex got water inside so in terms of waterproofing, 0. In terms of durability, like a dog

    Translated from Greek ·
    0
  • 5
    alexis95

    0
  • See all

Description & Specifications

Up to 1,000 nits Brightness

The HD AMOLED display of the watch can reach a maximum brightness of 1,000 nits in bright outdoor light, providing exceptionally clear visibility in any environment.

316L Stainless Steel

Conquer the outdoors with the Amazfit T-Rex Ultra.

Made from ultra-strong 316L stainless steel, it is the perfect companion for your adventures.

Mud-resistant

Built to withstand all kinds of action, the patented mud-resistant bridge and buttons keep the watch's construction free from sediment and dust.

Ultimate Control

Display your data the way you want, using the touchscreen, buttons, or a combination of both.

Powerful and Accurate GPS Tracking

The watch uses L1 and L5 signals for incredibly accurate dual-band GPS positioning and supports six satellite systems for greater global coverage.

Offline Maps Support

Download an offline map from the Zepp app to the watch and your location on the map will be updated in real-time as you navigate with a corresponding route file.

Conquer Your Instinct

Better understand your surroundings with the built-in compass and barometer, along with environmental reminders and a range of other useful features.

A warrior in the gym

The watch can automatically detect 25 types of exercises in the Strength Training sport mode, tracking repetitions, sets, and rest time.

After your workout, the Zepp app will display your exercises and which muscle groups you are working. You can even save the names of up to 100 of your own variations for personalized training logs.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Beige
Release Date
2023
Screen Size
1.39 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
454x454 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth, Wi-Fi

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Wi-Fi

Ability to connect to wireless networks for internet access through the smartwatch.
Strap
Silicone
Case material
Stainless Steel

Case material

Stainless Steel
"The most popular material for constructing a case is more resistant to rust, impacts, and scratches compared to others, but with greater weight."

Features & Functions

Features & Functions
SMS, Caller ID, Application / Calls Notification

Features & Functions

SMS
The smartwatch can display SMS messages.
Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Misc Sports / Gym, Swimming, Climbing, Hiking, Cycling, Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
GPS, Altimeter, Barometer, Pedometer, Gyroscope, Accelerometer, Thermometer, Heart Rate, Oximeter, Sleep Monitoring, Compass

Sensors

GPS
Technology that allows for the detection of geographic location via satellite. Particularly useful for navigation through map applications such as Google Maps.
Altimeter
Like a barometer, an altimeter measures atmospheric pressure by translating it into altitude, aiding in faster GPS location detection for navigation applications, as well as tracking how many floors we have climbed for health applications.
Barometer
It measures atmospheric pressure to assist in faster GPS location detection for navigation applications, as well as tracking the number of floors climbed for health applications.
Pedometer

Recording steps and distance.

Gyroscope
A sensor that helps the device know its position in space. For example, it allows the device to understand when we turn our wrist to look at the screen.
Accelerometer
This sensor allows the device to perceive changes in acceleration. For example, with this sensor, it can count the steps we take when wearing it.
Thermometer
The device has a built-in thermometer.
Heart Rate

Embedded heart rate monitor.

Oximeter

Measure the amount of oxygen in the blood.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)

Compass
Updates our device with its orientation, assisting in the use of navigation applications such as Google Maps.
Protection
Splash Resistant
ATM Rating
10 ATM

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Sea Swimming

Waterproof

Sea Swimming

The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
MIL-STD-810
Yes

Battery

Battery Capacity
500 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
20 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
25 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
47 mm

Case Size

47
This size is usually intended for fruits with a circumference of over 20.5cm.
Weight
89 gr

AI Features

AI Voice Assistant
No
AI Training Coach
Yes
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (8)

4.1
8
4.1
Review this product
  1. 4
  2. 3
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Easy synchronization
  • Accuracy in measurements
  • Screen
  • Durability
  • Battery life
  • Comfort
  • Sufficient number of features
  • Construction quality
  • Value for money

Reviews by our members

  • faskou78
    5
    0 out of 2 members found this review helpful
    faskou78

    Verified purchase

    This review is about the colour: Black

    Very good value for its price, accurate measurements, comfortable and easy to wear on the wrist even though I usually prefer larger watches. Excellent build quality and quite durable. By no means is it like a top tier Garmin but it is ideal and excellent for an entry level smartwatch combined with build quality that belongs to a higher price category.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • TASSOS_PANAGIOTOPOULOS
    4
    7 out of 7 members found this review helpful
    TASSOS_PANAGIOTOPOULOS

    Verified purchase

    This review is about the colour: Black

    After the Samsung Gear S3 Frontier, with which I was never satisfied (battery lasted 1 day, GPS that never worked), I ended up with this one.

    Owner for about 2 months:

    + The watch measures a lot and (I believe) accurately
    + GPS signal is "excellent"
    + User-friendly menus. Many options and watch faces
    + Battery depending on usage, 4-7 days
    + It hasn’t suffered from any knocks. I did put a screen protector on, of course. But the body is unaffected.
    + Screen with excellent brightness, day and night
    + Relatively strong beeper and very good and adjustable vibration
    + Relatively large screen but not huge. (I have presbyopia, the size is quite satisfactory)
    + Amazfit responds to emails and relatively quickly
    + Very easy mobile app

    - I noticed it’s a bit lacking in accuracy. With many tests regarding the sensitivity of automatic activity recognition, when I’m on the motorcycle it thinks I’m cycling.
    (with the Samsung I never had this specific problem).
    So I disabled cycling from automatic activity recognition.
    - It doesn’t have a speaker/microphone but you probably can’t have both water resistance and a microphone. So you can’t make calls on speakerphone.
    - It doesn’t have NFC (personally I don’t care)

    As another user mentioned:
    > I hope to find straps from abroad (along with a screwdriver)
    > I don’t know about service. I’m more concerned about the battery’s lifespan.
    > Theoretically it’s waterproof even in seawater. The truth is I’ll avoid it. If I can’t resist, at least I’ll rinse it with fresh water afterwards, as I’ve read you should.

    Additionally:
    > Heavy, you know you’re wearing it. You don’t look for it. That’s not necessarily a bad thing.
    > I haven’t yet found if and how I can have it connected to both the phone and BT handsfree, and be able to see the call on the watch but talk through the handsfree...
    I’ll ask the company about this...

    Finally, I don’t know how it compares to the new Trex 3. Probably the Trex 3 will be superior at least in price, since I got the Ultra for 380.

    I’ll return in the future with an updated review.

    December 2025: More than 1 year later:
    Fully satisfied. The battery is superb. It lasts at least 5 days with plenty of use/activity. It even reaches about 7 days with around 15% battery left.
    It does more than what I want.
    Of course, it doesn’t have a microphone and loudspeaker for calls, but I suppose that makes the watch more rugged since I’m not sure about the durability of similar watches in contact with water (and seawater).

    Translated from Greek ·
    Did you find this review helpful?
  • ubba
    4
    6 out of 8 members found this review helpful
    ubba
    This review is about the colour: Black

    I bought it in 6/2023, I wear it 24/7 and overall I am very satisfied with its use.
    POSITIVES:
    + Stainless steel case.
    + Battery life of over 2 weeks with training mode every 3 days.
    - Suitable for swimming, even has a DEPTH METER for light dives.
    + Very durable against impacts. It has no scratches despite accidental bumps on doors/handles, etc.
    + Regular updates and countless watch faces so you don't get bored.
    NEGATIVES:
    - Service??? I need a repairman here..., straps???
    - No microphone/speaker, only notification and call rejection.
    - Does not support NFC payments.

    Translated from Greek ·
    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Comfort
    • Moderate number of features
    • Value for money
    Did you find this review helpful?
  • 1
    0 out of 3 members found this review helpful
    Tasos_Makris5
    This review is about the colour: Black

    the previous T-Rex got water inside so in terms of waterproofing, 0. In terms of durability, like a dog

    Translated from Greek ·
    • Durability
    • Construction quality
    Did you find this review helpful?
  • 5
    alexis95

    Verified purchase

    This review is about the colour: Black

  • 4
    Zottun_Kaido

    Verified purchase

    This review is about the colour: Black

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Comfort
    • Value for money
  • 5
    Giannis Pantelaios 93

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 5
    spiros__g

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
  • faskou78
    5
    faskou78

    Very good value for its price, accurate measurements, comfortable and easy to wear on the wrist even though I usually prefer larger watches. Excellent build quality and quite durable. By no means is it like a top tier Garmin but it is ideal and excellent for an entry level smartwatch combined with build quality that belongs to a higher price category.

    Translated from Greek ·
    0
  • TASSOS_PANAGIOTOPOULOS
    4
    TASSOS_PANAGIOTOPOULOS

    After the Samsung Gear S3 Frontier, with which I was never satisfied (battery lasted 1 day, GPS that never worked), I ended up with this one.

    Owner for about 2 months:

    + The watch measures a lot and (I believe) accurately
    + GPS signal is "excellent"
    + User-friendly menus. Many options and watch faces
    + Battery depending on usage, 4-7 days
    + It hasn’t suffered from any knocks. I did put a screen protector on, of course. But the body is unaffected.
    + Screen with excellent brightness, day and night
    + Relatively strong beeper and very good and adjustable vibration
    + Relatively large screen but not huge. (I have presbyopia, the size is quite satisfactory)
    + Amazfit responds to emails and relatively quickly
    + Very easy mobile app

    - I noticed it’s a bit lacking in accuracy. With many tests regarding the sensitivity of automatic activity recognition, when I’m on the motorcycle it thinks I’m cycling.
    (with the Samsung I never had this specific problem).
    So I disabled cycling from automatic activity recognition.
    - It doesn’t have a speaker/microphone but you probably can’t have both water resistance and a microphone. So you can’t make calls on speakerphone.
    - It doesn’t have NFC (personally I don’t care)

    As another user mentioned:
    > I hope to find straps from abroad (along with a screwdriver)
    > I don’t know about service. I’m more concerned about the battery’s lifespan.
    > Theoretically it’s waterproof even in seawater. The truth is I’ll avoid it. If I can’t resist, at least I’ll rinse it with fresh water afterwards, as I’ve read you should.

    Additionally:
    > Heavy, you know you’re wearing it. You don’t look for it. That’s not necessarily a bad thing.
    > I haven’t yet found if and how I can have it connected to both the phone and BT handsfree, and be able to see the call on the watch but talk through the handsfree...
    I’ll ask the company about this...

    Finally, I don’t know how it compares to the new Trex 3. Probably the Trex 3 will be superior at least in price, since I got the Ultra for 380.

    I’ll return in the future with an updated review.

    December 2025: More than 1 year later:
    Fully satisfied. The battery is superb. It lasts at least 5 days with plenty of use/activity. It even reaches about 7 days with around 15% battery left.
    It does more than what I want.
    Of course, it doesn’t have a microphone and loudspeaker for calls, but I suppose that makes the watch more rugged since I’m not sure about the durability of similar watches in contact with water (and seawater).

    Translated from Greek ·
    7
  • ubba
    4
    ubba

    I bought it in 6/2023, I wear it 24/7 and overall I am very satisfied with its use.
    POSITIVES:
    + Stainless steel case.
    + Battery life of over 2 weeks with training mode every 3 days.
    - Suitable for swimming, even has a DEPTH METER for light dives.
    + Very durable against impacts. It has no scratches despite accidental bumps on doors/handles, etc.
    + Regular updates and countless watch faces so you don't get bored.
    NEGATIVES:
    - Service??? I need a repairman here..., straps???
    - No microphone/speaker, only notification and call rejection.
    - Does not support NFC payments.

    Translated from Greek ·
    6
  • 1
    Tasos_Makris5

    the previous T-Rex got water inside so in terms of waterproofing, 0. In terms of durability, like a dog

    Translated from Greek ·
    0
  • 5
    alexis95

    0
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