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Street X 45mm Waterproof Smartwatch with Heart Rate Monitor Forest Green
Smartwatches

Street X 45mm Waterproof Smartwatch with Heart Rate Monitor Forest Green

This smartwatch comes with a wide range of features to meet your needs in sports and everyday life. It allows you to track your activity, from your walk to your workout, providing accurate statistics...

This smartwatch comes with a wide range of features to meet your needs in sports and everyday life. It allows you to track your activity, from your walk to your workout, providing accurate statistics and data.

The built-in heart rate monitor lets you track your heart rate in real time, while it has various sensors that contribute to the precise measurement...

See full description See full description

Top specs

  • 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

    Pool Swimming

    Equipped with a high level of waterproofing, the smartwatch can be comfortably used during pool swimming. Track your performance in the water without worrying about the safety of the device.
  • See all
249 90 €
Delivery by Thu, 05 Nov
14,00 €   shipping cost
Sent from Greece
From Klaoudatos 5.0 (4)
5.0 (4 reviews)
Greece
3 pieces
See Wearables on the page of Klaoudatos

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Product report

Description

Description

This smartwatch comes with a wide range of features to meet your needs in sports and everyday life. It allows you to track your activity, from your walk to your workout, providing accurate statistics and data.

The built-in heart rate monitor lets you track your heart rate in real time, while it has various sensors that contribute to the precise measurement of your activities.

The AMOLED screen provides vivid colors and high contrast, offering an impressive visual experience. It enhances the usability of the watch during your daily use and is energy efficient, performing especially well in dark mode.

Some special features include:

  • Compatibility with Android smartphones
  • Two types of Bluetooth interfaces for easy connection with other devices
  • Many sensors, including GPS, altimeter, barometer, and thermometer, for accurate tracking of your location and activities
  • Ability to track multiple sports, such as running, hiking, and cycling
  • Built-in vibration for notifications and messages

The watch size is 45mm, ideal for wrists with a circumference of 19-20.5 cm, and it is made of plastic, offering lightweight and usability.

With this smartwatch, you will have all the support you need to monitor your health and activities, while also keeping you updated on your goals.

24/7 Hybrid System

The Polar Street X features the 24/7 Hybrid Performance System, designed specifically for everyday athletes and runners. It provides comprehensive performance and fitness tracking around the clock.

Performance and Effort Tracking

Accurately track your daily performance, effort, and training load. The device analyzes your workout data, giving you a clear picture of your training intensity.

Nighttime Recovery and Sleep

At night, the watch tracks your sleep and your body’s recovery. It helps you understand how effectively your body is recovering, so you can be ready for the next day.

170+ Sports Profiles

Choose from more than 170 sports activities. Whether you're running or doing specialized workouts, the smartwatch adapts to your favorite routines.

Load and Readiness Management

Manage your body’s strain and tolerance. Learn when to push your limits, when to take a break, and when you’re making real progress based on your daily readiness.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Green
Release Date
2026
Screen Size
1.28 "

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
416x416 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

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
Silicone
Case material
Plastic

Case material

Plastic

A very popular and economical material for building casings with low weight but less resistance to impacts and scratches compared to others (e.g. aluminum, stainless steel).

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
Misc Sports / Gym, 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, 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.

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
5 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
Pool Swimming

Waterproof

Pool Swimming

Equipped with a high level of waterproofing, the smartwatch can be comfortably used during pool swimming. Track your performance in the water without worrying about the safety of the device.
MIL-STD-810
Yes

Battery

Battery Capacity
385 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
10 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
45 mm

Case Size

45
This size is usually suitable for fruits with a circumference of 19-20.5cm.
Weight
48 gr

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

Description & Specifications

This smartwatch comes with a wide range of features to meet your needs in sports and everyday life. It allows you to track your activity, from your walk to your workout, providing accurate statistics and data.

The built-in heart rate monitor lets you track your heart rate in real time, while it has various sensors that contribute to the precise measurement of your activities.

The AMOLED screen provides vivid colors and high contrast, offering an impressive visual experience. It enhances the usability of the watch during your daily use and is energy efficient, performing especially well in dark mode.

Some special features include:

  • Compatibility with Android smartphones
  • Two types of Bluetooth interfaces for easy connection with other devices
  • Many sensors, including GPS, altimeter, barometer, and thermometer, for accurate tracking of your location and activities
  • Ability to track multiple sports, such as running, hiking, and cycling
  • Built-in vibration for notifications and messages

The watch size is 45mm, ideal for wrists with a circumference of 19-20.5 cm, and it is made of plastic, offering lightweight and usability.

With this smartwatch, you will have all the support you need to monitor your health and activities, while also keeping you updated on your goals.

24/7 Hybrid System

The Polar Street X features the 24/7 Hybrid Performance System, designed specifically for everyday athletes and runners. It provides comprehensive performance and fitness tracking around the clock.

Performance and Effort Tracking

Accurately track your daily performance, effort, and training load. The device analyzes your workout data, giving you a clear picture of your training intensity.

Nighttime Recovery and Sleep

At night, the watch tracks your sleep and your body’s recovery. It helps you understand how effectively your body is recovering, so you can be ready for the next day.

170+ Sports Profiles

Choose from more than 170 sports activities. Whether you're running or doing specialized workouts, the smartwatch adapts to your favorite routines.

Load and Readiness Management

Manage your body’s strain and tolerance. Learn when to push your limits, when to take a break, and when you’re making real progress based on your daily readiness.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Green
Release Date
2026
Screen Size
1.28 "

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
416x416 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

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
Silicone
Case material
Plastic

Case material

Plastic

A very popular and economical material for building casings with low weight but less resistance to impacts and scratches compared to others (e.g. aluminum, stainless steel).

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
Misc Sports / Gym, 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, 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.

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
5 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
Pool Swimming

Waterproof

Pool Swimming

Equipped with a high level of waterproofing, the smartwatch can be comfortably used during pool swimming. Track your performance in the water without worrying about the safety of the device.
MIL-STD-810
Yes

Battery

Battery Capacity
385 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
10 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
45 mm

Case Size

45
This size is usually suitable for fruits with a circumference of 19-20.5cm.
Weight
48 gr

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.

249,90 €
14,00 €   shipping cost
Polar