Polar Grit X2

Display: AMOLED, 1.28 in
Case sizes: 44.7 mm
Battery: 8 days
GPS battery: 25 hours
Water resistance: 5 ATM
Weight: 39 g

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Polar Grit X2 at a glance

Battery

About a week

Up to 8 days in smartwatch mode. 25 hours with GPS.
GPS

Multi-band GPS

Maps on the wrist. Runs and rides without your phone.
Display

AMOLED, 1.28 in

1.28 in, always-on option and touchscreen.
Health

ECG on the wrist

Measures ECG, blood oxygen, skin temperature and HRV.
Phone & smart

Smart features

Notifications from your phone.
Build

5 ATM water rating

39 g. Sapphire lens. MIL-STD-810.

Polar Grit X2 full specifications

Overview

Brand	Polar
Model	Grit X2
Series	Grit X
Colours	Night Black

Platform & apps

Runs Polar.

No subscription needed.

Operating system	Polar
RAM	37 MB
Storage	32 GB
Subscription	Not needed

Display

A bright, colourful screen that looks like a phone display.

1.28 in, always-on option and touchscreen.

Display type	AMOLED
Screen size	1.28 in
Resolution	416 x 416
Colour display	Yes
Always-on display	Yes
Touchscreen	Yes
Controls	touchscreen, buttons

Design & durability

A 44.7 mm case weighing 39 g.

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

Case sizes	44.7 mm
Thickness	12.5 mm
Weight (case)	39 g
Weight with band	62 g
Case material	Plastic
Bezel material	Stainless steel
Lens	Sapphire Glass
Band material	silicone
Band width	22 mm
Water resistance	5 ATM
MIL-STD-810 tested	Yes
Operating temperature	-20 to 50 °C

Battery

About a week: up to 8 days in smartwatch mode.

With GPS on, up to 25 hours. Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode)	8 days
Battery (GPS)	25 hours
All battery modes	GPS: 25 hours; Battery saver: 3.3 days; Smartwatch: 8 days
Battery capacity	310 mAh
Battery type	Li-Pol
Charging	proprietary-plug

GPS & navigation

Built-in multi-band GPS for accurate tracks, even near tall buildings and trees.

You can download maps to the watch.

GPS	Built-in
Multi-band GPS	Yes
Satellite systems	GPS, GLONASS, Galileo, BeiDou, QZSS
Maps	Downloadable maps
Navigation features	turn-by-turn, back-to-start, Route Guidance, breadcrumbs, waypoints, points of interest

Health & sensors

A health-focused watch: it measures ECG, blood oxygen, skin temperature and HRV.

For sleep, it offers sleep stages. ECG availability can depend on your country.

Sensors	optical HR, ECG electrode, SpO2, skin temperature, accelerometer, gyroscope, barometer, compass, ambient light
Heart-rate sensor	OHR GEN 4
Heart-rate tracking	24/7
ECG	Yes
Heart-rate variability	Yes
Blood oxygen (SpO2)	Yes
Skin temperature	Yes
Sleep tracking	Sleep stages
Readiness score	Nightly Recharge

Training

Built for training, with the metrics serious athletes use.

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

Sport profiles	150
Training metrics	training load, training effect, recovery time
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.