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Kumi K3 Stainless Steel 39mm Smartwatch with Heart Rate Monitor (Gold)
Smartwatches

Kumi K3 Stainless Steel 39mm Smartwatch with Heart Rate Monitor (Gold)

Key features:

  • Model 2022
  • Touchscreen
  • Battery life up to 5 days
  • Bluetooth
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.

  • Waterproof

    Water Contact

    The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
  • See all
The product is not available for shipping to the selected country.
Product report

Description

Description

The KUMI K3 is here to be a useful tool in your daily life. It provides health parameter monitoring, sports functions, notifications, and many other features. Its unique design and quality construction make it an excellent and durable choice.


Waterproof IP68 & 24-Hour Monitoring

The KUMI K3 is IP68 waterproof, allowing you to wear it while washing your hands or on rainy days. It features a heart rate sensor that collects heart rate data 24 hours a day. It also has a pedometer and allows you to monitor and calculate the calories burned throughout the day.

The KUMI K3 can monitor many sports activities such as walking, running, cycling, climbing, etc. Additional features include blood oxygen monitoring, blood pressure monitoring, menstrual cycle reminder, sedentary reminder.

Long battery life

It is equipped with a 140mAh battery capacity to offer you 3-5 days of regular use and 25-30 days of standby time.

Smart notifications

After connecting to the smartphone, you can receive calls, SMS messages, notifications from apps such as Facebook, Twitter, WhatsApp, LinkedIn, Messenger, email, etc. When the Kumi K3 receives notifications, there is a corresponding vibration. However, it cannot make/answer calls or send/reply to text.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Gold
Release Date
2022
Screen Size
1.09 "

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."
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

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
Metalic
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
Vibration
Features & Functions
Application / Calls Notification

Features & Functions

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
Hiking, Running

Use

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

Additional Specifications

Sensors
Pedometer, Heart Rate, Sleep Monitoring

Sensors

Pedometer

Recording steps and distance.

Heart Rate

Embedded heart rate monitor.

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.)
Protection
Splash Resistant
ATM Rating
-

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
Water Contact

Waterproof

Water Contact

The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
MIL-STD-810
No

Battery

Battery Capacity
140 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
5 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.

Dimensions

Case Size
39 mm

Case Size

39
This size is usually intended for fruits with a circumference of 14-16.5cm.

AI Features

AI Voice Assistant
No
AI Training Coach
-
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 (16)

Reviews

3.8
16
3.8
Review this product
  1. 8
  2. 4
  3. 2
  4. 1
  5. 1
Review this product
  • Comfort
  • Easy synchronization
  • Value for money
  • Durability
  • Construction quality
  • Screen
  • Battery life
  • Accuracy in measurements
  • Moderate number of features

Reviews photos

Reviews photos
Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • Nefeli_Papagiannakou
    4
    1 out of 1 members found this review helpful
    Nefeli_Papagiannakou

    Verified purchase

    This review is about the colour: Silver

    It is nice, lightweight, and easy to wear. However, it does not have any good software, the settings are bad (for example, you cannot disconnect it directly from the watch, you have to turn off Bluetooth from your phone)... also, the themes change on their own and they are all terrible. Also, you have to press the button to open the screen (meaning it does not have a motion sensor).

    The battery does indeed last 4-5 days!
    Overall, nice, with limited capabilities!

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Screen
    • Value for money
    • Comfort
    • Moderate number of features
    • Relative accuracy in measurements
    • Battery life
    Did you find this review helpful?
  • renialaskaraki
    5
    1 out of 1 members found this review helpful
    renialaskaraki

    Elegant and beautiful smartwatch, comfortable on the wrist, I wear it all day, a good choice in this price category.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • bikourena
    5
    4 out of 4 members found this review helpful
    bikourena

    Excellent smartwatch easy to connect and use, comfortable on the wrist and stylish design. For the price it is at, it is a very good choice either as a gift or for personal use.

    Translated from Greek ·
    • Sufficient number of features
    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • gmoutou21
    5
    5 out of 5 members found this review helpful
    gmoutou21

    I have been searching for a smartwatch that I would like in appearance for a long time, and by chance I came across this one and seeing its affordable price, I bought it. Well, it is even more beautiful up close and very easy and comfortable to use. I am truly excited. I wear it all day and it fully meets my needs with all its functions and Greek characters. I highly recommend it without reservation!

    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?
  • Angierzz
    5
    8 out of 9 members found this review helpful
    Angierzz

    Verified purchase

    The design of the watch is excellent, the accuracy of the measurements is very good, and it has many other functions. It looks very beautiful on the wrist. The battery lasts 4-5 days and the screen displays Greek characters correctly. I am very happy with my choice. I would definitely choose it again! The package also includes a screen protector.

    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?
  • 3
    0 out of 1 members found this review helpful
    Kostas_markopoylos

    Verified purchase

    This review is about the colour: Silver

    In one word, far away!!

    Translated from Greek ·
    • Moderate difficulty syncing
    • Relative accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Comfort
    • Limited number of features
    • Battery life
    • Value for money
    Did you find this review helpful?
  • 3
    Anthimos_Stavridis

    Verified purchase

  • 5
    th_tsakalou

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 4
    ΔΗΜΗΤΡΗΣ ΣΤΑΘΟΠΟΥΛΟΣ

    Verified purchase

  • 5
    Litsaki31_Gro

    Verified purchase

  • 5
    Domenikos_Tzavaras

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 4
    slathir_slathir

    Verified purchase

    • Easy synchronization
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
    • Moderate number of features
    • Relative accuracy in measurements
  • 1
    Roula_21

    Verified purchase

    This review is about the colour: Silver

    • Construction quality
    • Battery life
    • Value for money
    • Comfort
    • Moderate number of features
    • Screen
  • 4
    roula.pilati

    Verified purchase

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

    Verified purchase

    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Value for money
    • Comfort
    • Moderate number of features
    • Battery life
  • 2
    Manolis_Piskapas

    Verified purchase

    • Easy synchronization
    • Screen
    • Battery life
    • Comfort
    • Relative accuracy in measurements
    • Construction quality
    • Moderate number of features
  • Nefeli_Papagiannakou
    4
    Nefeli_Papagiannakou

    It is nice, lightweight, and easy to wear. However, it does not have any good software, the settings are bad (for example, you cannot disconnect it directly from the watch, you have to turn off Bluetooth from your phone)... also, the themes change on their own and they are all terrible. Also, you have to press the button to open the screen (meaning it does not have a motion sensor).

    The battery does indeed last 4-5 days!
    Overall, nice, with limited capabilities!

    Translated from Greek ·
    1
  • renialaskaraki
    5
    renialaskaraki

    Elegant and beautiful smartwatch, comfortable on the wrist, I wear it all day, a good choice in this price category.

    Translated from Greek ·
    1
  • bikourena
    5
    bikourena

    Excellent smartwatch easy to connect and use, comfortable on the wrist and stylish design. For the price it is at, it is a very good choice either as a gift or for personal use.

    Translated from Greek ·
    4
  • gmoutou21
    5
    gmoutou21

    I have been searching for a smartwatch that I would like in appearance for a long time, and by chance I came across this one and seeing its affordable price, I bought it. Well, it is even more beautiful up close and very easy and comfortable to use. I am truly excited. I wear it all day and it fully meets my needs with all its functions and Greek characters. I highly recommend it without reservation!

    Translated from Greek ·
    5
  • Angierzz
    5
    Angierzz

    The design of the watch is excellent, the accuracy of the measurements is very good, and it has many other functions. It looks very beautiful on the wrist. The battery lasts 4-5 days and the screen displays Greek characters correctly. I am very happy with my choice. I would definitely choose it again! The package also includes a screen protector.

    Translated from Greek ·
    8
  • See all

Description & Specifications

The KUMI K3 is here to be a useful tool in your daily life. It provides health parameter monitoring, sports functions, notifications, and many other features. Its unique design and quality construction make it an excellent and durable choice.


Waterproof IP68 & 24-Hour Monitoring

The KUMI K3 is IP68 waterproof, allowing you to wear it while washing your hands or on rainy days. It features a heart rate sensor that collects heart rate data 24 hours a day. It also has a pedometer and allows you to monitor and calculate the calories burned throughout the day.

The KUMI K3 can monitor many sports activities such as walking, running, cycling, climbing, etc. Additional features include blood oxygen monitoring, blood pressure monitoring, menstrual cycle reminder, sedentary reminder.

Long battery life

It is equipped with a 140mAh battery capacity to offer you 3-5 days of regular use and 25-30 days of standby time.

Smart notifications

After connecting to the smartphone, you can receive calls, SMS messages, notifications from apps such as Facebook, Twitter, WhatsApp, LinkedIn, Messenger, email, etc. When the Kumi K3 receives notifications, there is a corresponding vibration. However, it cannot make/answer calls or send/reply to text.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Gold
Release Date
2022
Screen Size
1.09 "

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."
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

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
Metalic
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
Vibration
Features & Functions
Application / Calls Notification

Features & Functions

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
Hiking, Running

Use

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

Additional Specifications

Sensors
Pedometer, Heart Rate, Sleep Monitoring

Sensors

Pedometer

Recording steps and distance.

Heart Rate

Embedded heart rate monitor.

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.)
Protection
Splash Resistant
ATM Rating
-

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
Water Contact

Waterproof

Water Contact

The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
MIL-STD-810
No

Battery

Battery Capacity
140 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
5 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.

Dimensions

Case Size
39 mm

Case Size

39
This size is usually intended for fruits with a circumference of 14-16.5cm.

AI Features

AI Voice Assistant
No
AI Training Coach
-
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 (16)

3.8
16
3.8
Review this product
  1. 8
  2. 4
  3. 2
  4. 1
  5. 1
Review this product
  • Comfort
  • Easy synchronization
  • Value for money
  • Durability
  • Construction quality
  • Screen
  • Battery life
  • Accuracy in measurements
  • Moderate number of features

Reviews photos

Reviews photos
Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • Nefeli_Papagiannakou
    4
    1 out of 1 members found this review helpful
    Nefeli_Papagiannakou

    Verified purchase

    This review is about the colour: Silver

    It is nice, lightweight, and easy to wear. However, it does not have any good software, the settings are bad (for example, you cannot disconnect it directly from the watch, you have to turn off Bluetooth from your phone)... also, the themes change on their own and they are all terrible. Also, you have to press the button to open the screen (meaning it does not have a motion sensor).

    The battery does indeed last 4-5 days!
    Overall, nice, with limited capabilities!

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Screen
    • Value for money
    • Comfort
    • Moderate number of features
    • Relative accuracy in measurements
    • Battery life
    Did you find this review helpful?
  • renialaskaraki
    5
    1 out of 1 members found this review helpful
    renialaskaraki

    Elegant and beautiful smartwatch, comfortable on the wrist, I wear it all day, a good choice in this price category.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • bikourena
    5
    4 out of 4 members found this review helpful
    bikourena

    Excellent smartwatch easy to connect and use, comfortable on the wrist and stylish design. For the price it is at, it is a very good choice either as a gift or for personal use.

    Translated from Greek ·
    • Sufficient number of features
    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • gmoutou21
    5
    5 out of 5 members found this review helpful
    gmoutou21

    I have been searching for a smartwatch that I would like in appearance for a long time, and by chance I came across this one and seeing its affordable price, I bought it. Well, it is even more beautiful up close and very easy and comfortable to use. I am truly excited. I wear it all day and it fully meets my needs with all its functions and Greek characters. I highly recommend it without reservation!

    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?
  • Angierzz
    5
    8 out of 9 members found this review helpful
    Angierzz

    Verified purchase

    The design of the watch is excellent, the accuracy of the measurements is very good, and it has many other functions. It looks very beautiful on the wrist. The battery lasts 4-5 days and the screen displays Greek characters correctly. I am very happy with my choice. I would definitely choose it again! The package also includes a screen protector.

    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?
  • 3
    0 out of 1 members found this review helpful
    Kostas_markopoylos

    Verified purchase

    This review is about the colour: Silver

    In one word, far away!!

    Translated from Greek ·
    • Moderate difficulty syncing
    • Relative accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Comfort
    • Limited number of features
    • Battery life
    • Value for money
    Did you find this review helpful?
  • 3
    Anthimos_Stavridis

    Verified purchase

  • 5
    th_tsakalou

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 4
    ΔΗΜΗΤΡΗΣ ΣΤΑΘΟΠΟΥΛΟΣ

    Verified purchase

  • 5
    Litsaki31_Gro

    Verified purchase

  • 5
    Domenikos_Tzavaras

    Verified purchase

    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
  • 4
    slathir_slathir

    Verified purchase

    • Easy synchronization
    • Construction quality
    • Screen
    • Battery life
    • Value for money
    • Comfort
    • Moderate number of features
    • Relative accuracy in measurements
  • 1
    Roula_21

    Verified purchase

    This review is about the colour: Silver

    • Construction quality
    • Battery life
    • Value for money
    • Comfort
    • Moderate number of features
    • Screen
  • 4
    roula.pilati

    Verified purchase

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

    Verified purchase

    • Easy synchronization
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Value for money
    • Comfort
    • Moderate number of features
    • Battery life
  • 2
    Manolis_Piskapas

    Verified purchase

    • Easy synchronization
    • Screen
    • Battery life
    • Comfort
    • Relative accuracy in measurements
    • Construction quality
    • Moderate number of features
  • Nefeli_Papagiannakou
    4
    Nefeli_Papagiannakou

    It is nice, lightweight, and easy to wear. However, it does not have any good software, the settings are bad (for example, you cannot disconnect it directly from the watch, you have to turn off Bluetooth from your phone)... also, the themes change on their own and they are all terrible. Also, you have to press the button to open the screen (meaning it does not have a motion sensor).

    The battery does indeed last 4-5 days!
    Overall, nice, with limited capabilities!

    Translated from Greek ·
    1
  • renialaskaraki
    5
    renialaskaraki

    Elegant and beautiful smartwatch, comfortable on the wrist, I wear it all day, a good choice in this price category.

    Translated from Greek ·
    1
  • bikourena
    5
    bikourena

    Excellent smartwatch easy to connect and use, comfortable on the wrist and stylish design. For the price it is at, it is a very good choice either as a gift or for personal use.

    Translated from Greek ·
    4
  • gmoutou21
    5
    gmoutou21

    I have been searching for a smartwatch that I would like in appearance for a long time, and by chance I came across this one and seeing its affordable price, I bought it. Well, it is even more beautiful up close and very easy and comfortable to use. I am truly excited. I wear it all day and it fully meets my needs with all its functions and Greek characters. I highly recommend it without reservation!

    Translated from Greek ·
    5
  • Angierzz
    5
    Angierzz

    The design of the watch is excellent, the accuracy of the measurements is very good, and it has many other functions. It looks very beautiful on the wrist. The battery lasts 4-5 days and the screen displays Greek characters correctly. I am very happy with my choice. I would definitely choose it again! The package also includes a screen protector.

    Translated from Greek ·
    8
  • See all