Polar Street X

Display: AMOLED, 1.28 in
Case sizes: 45 mm
Battery: 10 days
GPS battery: 42 hours
Water resistance: 5 ATM
Weight: 28 g

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Polar Street X at a glance

Battery

Around two weeks

Up to 10 days in smartwatch mode. 42 hours with GPS.
GPS

Built-in GPS

No maps. Runs and rides without your phone.
Display

AMOLED, 1.28 in

1.28 in and touchscreen.
Health

Heart, sleep and more

Measures skin temperature and HRV.
Phone & smart

Smart features

Notifications from your phone.
Build

5 ATM water rating

28 g. MIL-STD-810.

Polar Street X full specifications

Overview

Brand	Polar
Model	Street X
Series	Street
Colours	Night Black

Platform & apps

Runs Polar.

No subscription needed.

Operating system	Polar
RAM	5 MB
Storage	0.032 GB
Subscription	Not needed

Display

A vivid, high-contrast screen that is easy to read indoors and out.

1.28 in and touchscreen.

Display type	AMOLED
Screen size	1.28 in
Resolution	416 x 416
Pixel density	325 ppi
Colour display	Yes
Touchscreen	Yes
Controls	touchscreen, buttons

Design & durability

A 45 mm case weighing 28 g.

Rated 5 ATM: fine for swimming laps and showers. Tested to MIL-STD-810 for shock, heat and cold.

Case sizes	45 mm
Thickness	13.8 mm
Weight (case)	28 g
Weight with band	48 g
Case material	Bio-based plastic
Lens	Gorilla Glass
Band width	22 mm
Water resistance	5 ATM
MIL-STD-810 tested	Yes
Operating temperature	-20 to 50 °C

Battery

Around two weeks: up to 10 days in smartwatch mode.

With GPS on, up to 42 hours. Real battery life depends on screen brightness, notifications and workouts.

Battery (smartwatch mode)	10 days
Battery (GPS)	42 hours
All battery modes	Smartwatch: 10 days; GPS: 42 hours; Battery saver: 7.1 days
Battery capacity	385 mAh
Battery type	Li-Pol
Charging	proprietary-plug

GPS & navigation

Built-in GPS, so you can record runs and rides without your phone.

Navigation shows a breadcrumb trail, not a full map.

GPS	Built-in
Satellite systems	GPS, Galileo, BeiDou, QZSS
Maps	Breadcrumb trail
Navigation features	turn-by-turn, back-to-start, track back, breadcrumbs

Health & sensors

Tracks heart rate around the clock, plus skin temperature and HRV.

For sleep, it offers a nightly sleep score.

Sensors	optical HR, barometer, compass, accelerometer, gyroscope, ambient light, skin temperature
Heart-rate sensor	Precision Prime
Heart-rate tracking	24/7
ECG	No
Heart-rate variability	Yes
Skin temperature	Yes
Sleep tracking	Sleep score
Readiness score	Daily Readiness

Training

Built for training, with the metrics serious athletes use.

170+ sport profiles. It adds running power and daily suggested workouts.

Sport profiles	170
Training metrics	VO2 max, training load, recovery time, HRV status
Adaptive coaching	Yes
Wrist running power	Yes
Heart-rate broadcast	Yes
External sensors	speed/cadence

Smart features

Notifications	Yes
Bluetooth	Bluetooth LE
Find my phone	Yes
Flashlight	Yes

Specs compiled from Polar's product pages and datasheets. Manufacturers revise hardware between versions, so check the version on the box. Spotted an error? Tell us.