Polar Loop

Display: none
Battery: 8 days
Water resistance: 3 ATM
Weight: 19.5 g

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Polar Loop at a glance

Battery

About a week

Up to 8 days in smartwatch mode.
GPS

Uses your phone's GPS

Carry your phone to map a workout.
Display

No screen

Screen-free: you check everything in the phone app.
Health

Heart, sleep and more

Measures HRV.
Phone & smart

Smart features

Notifications from your phone.
Build

3 ATM water rating

19.5 g.

Polar Loop full specifications

Overview

Brand	Polar
Model	POLAR Loop
Colours	Night Black

Platform & apps

Runs Polar.

No third-party app store: what it ships with is what you get. No subscription needed.

Operating system	Polar
RAM	1.3 MB
Storage	0.016 GB
App store	No
Subscription	Not needed

Display

No screen at all: the band tracks in the background and the app shows your data.

Display type	None
Colour display	No
Always-on display	No
Touchscreen	No

Design & durability

Weighs 19.5 g.

Rated 3 ATM: splash-proof, not for swimming.

Case shape	Band
Dimensions	27 x 42 x 9 mm
Thickness	9 mm
Weight (case)	19.5 g
Weight with band	29 g
Case material	Stainless steel
Band material	SoftWeave Textile
Fits wrists	135-230 mm
Water resistance	3 ATM
Operating temperature	-20 to 50 °C

Battery

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

Real battery life depends on screen brightness, notifications and workouts.

Battery (smartwatch mode)	8 days
All battery modes	Smartwatch: 8 days
Battery capacity	170 mAh
Battery type	Li-Pol
Charging	proprietary-plug

GPS & navigation

Uses your phone's GPS, so carry the phone to map a run or ride.

GPS	Uses phone GPS
Multi-band GPS	No

Health & sensors

Tracks heart rate around the clock, plus HRV.

For sleep, it offers sleep stages.

Sensors	optical HR, accelerometer
Heart-rate sensor	OHR GEN 3.5
Heart-rate tracking	24/7
Heart-rate variability	Yes
Skin temperature	No
Respiration rate	Yes
Sleep tracking	Sleep stages
Readiness score	Nightly Recharge

Training

Tracks 150+ sports and activities.

Sport profiles	150
Auto activity detection	Yes
Swim tracking	None
Underwater heart rate	Yes
Training metrics	Training Load Pro, Training Benefit, Fitness Test
Heart-rate broadcast	No

Smart features

Notifications	No
Bluetooth	Bluetooth LE

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.