Polar Grit X

Works with: iPhone and Android
Display: 1.2 in
Battery: 7 days
GPS battery: 40 hours
Water resistance: 10 ATM

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Polar Grit X at a glance

Battery

About a week

Up to 7 days in smartwatch mode. 40 hours with GPS.
GPS

Built-in GPS

No maps. Runs and rides without your phone.
Health

Heart rate and activity

Heart rate, steps and sleep.
Phone & smart

iPhone and Android

Notifications from your phone.
Build

10 ATM water rating

Build as listed in the specs.

Polar Grit X full specifications

Overview

Brand	Polar
Model	Grit X
Series	Grit X
Colours	Black, White, Green

Platform & apps

Works with iPhone and Android phones, running Polar.

Operating system	Polar
Works with	iPhone and Android

Display

Screen size	1.2 in
Resolution	240 x 240
Controls	buttons

Design & durability

Size and build as listed below.

Rated 10 ATM: fine for swimming, snorkelling and water sports.

Thickness	13 mm
Case material	PA12+30GF, TPE, STAINLESS STEEL, PMMA
Lens	Gorilla Glass
Band material	silicone
Water resistance	10 ATM
Water standard	ISO 22810:2010
Operating temperature	-10 to 50 °C
Max altitude	9,000 m

Battery

About a week: up to 7 days in smartwatch mode.

With GPS on, up to 40 hours. Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode)	7 days
Battery (GPS)	40 hours
All battery modes	Smartwatch: 7 days; GPS: 40 hours; Battery saver: 4.2 days
Battery capacity	346 mAh
Battery type	Li-Pol

GPS & navigation

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

GPS	Built-in

Health & sensors

Sensors	optical HR
Heart-rate sensor	Polar Precision Prime
Heart-rate tracking	24/7

Smart features

Bluetooth	Bluetooth 4.0

Diving, golf & more

Diving	None

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.