Polar Street X
Quick details
Released
March 2026
Dimensions
45 x 45 x 13.8 mm
Operating system
Proprietary
Display 1.28 inch AMOLED
Battery life Up to 43 h performance training; up to 170 h Eco training; up to 10 days smartwatch mode
Water resistance 5 ATM
GPS Yes
Sensors GPS, Accelerometer, Gyroscope, Barometric altimeter, Compass, Ambient light sensor, Optical heart rate, Skin temperature
Technical specifications
General
Release date 2026-03
Product type Urban sports watch
Physical size 45 x 45 x 13.8 mm
Weight 48 g
Material Bio-based plastic case and bezel, Gorilla Glass Screen
Water resistance 5 ATM
Color options Night Black, Snow White, Forest Green
Display type AMOLED
Display size 1.28 inch
Display resolution 416 x 416 pixels
Display protection Corning Gorilla Glass 3
Battery Rechargeable lithium-polymer battery; 385 mAh
Battery life Up to 43 h performance training; up to 170 h Eco training; up to 10 days smartwatch mode
Charging USB
Sensors
GNSS type Built-in GNSS
GPS Yes
GALILEO Yes
GLONASS No
QZSS Yes
Beidou Yes
Accelerometer Yes
Gyroscope Yes
Barometric altimeter Yes
Compass Yes - Magnetometer-based compass (no-GPS needed)
Geomagnetic Yes
Ambient light sensor Yes
Optical heart rate Yes
Electrical heart rate No
SpO2 No
Temperature Yes
Galvanic skin response No
Microphone No
Speakers No
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors No
Sports tracking Yes
Sleep Yes
Heart rate Yes
HRV Yes (Nightly Recharge)
Stress Yes (Nightly Recharge / ANS charge)
Blood oxygen No
Respiration rate Yes (during Nightly Recharge)
Skin temperature Yes
ECG No
Blood pressure No
Body composition No
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Training Load Pro Yes
Recovery Pro Yes (compatible Polar HR sensor required)
Nightly Recharge Yes
SleepWise Yes (Polar Flow app)
FitSpark Yes
FuelWise Yes
Hill Splitter Yes
Wrist-based running power Yes
Running Performance Test Yes
Cycling Performance Test Yes (compatible cycling power sensor required)
Walking Test Yes
Orthostatic Test Yes (compatible Polar HR sensor required)
Leg Recovery Test Yes
Running Index Yes
Energy Sources Yes
Sleep Plus Stages Yes
Hyperglycemia risk assessment No
Arterial stiffness detection No
Pulse wave arrhythmia analysis No
Daily smart features
Smartphone compatibility Android and iOS
Operating system at launch Proprietary
Processor 275 MHz
RAM 5 MB
Storage 32 MB
Bluetooth Yes
Wi-Fi No
NFC / connected pay No
UWB No
Cellular No
Smartphone notifications Yes
Bluetooth calling No
Smartphone music control Yes
On-board music storage No
Voice assistant No
Links
These technical specs are correct to the best of our knowledge at the time of publishing.
