Polar Unite — case dimensions and design

Polar · 2020

Unite Size, Dimensions & Wrist Fit

Case Width

43.4mm

Thickness

10.4mm

Battery

4 days

Weight

32g

The Unite looks in proportion on wrists of 15.5 cm (6.1 in) and up round, and fills the wrist at 16.5–18 cm (lug-to-lug estimated at ≈50mm; Polar does not publish it).

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Does the Unite fit your wrist?

Wrist round (mm left each side)	43.4mm≈50mm lug to lug, est.
14 cm / 5.5 in	Overhangs (2.4mm over)
15 cm / 5.9 in	Overhangs (0.8mm over)
16 cm / 6.3 in	Bold (0.8mm)
17 cm / 6.7 in	Sweet spot (2.4mm)
18 cm / 7.1 in	Sweet spot (4mm)
19 cm / 7.5 in	Balanced (5.6mm)
20 cm / 7.9 in	Balanced (7.3mm)

How the fit model works · Size chart for every wrist

The Unite in short

Rated for 4 days of use per charge.
Water rated to 30 m.
32g on the wrist.
1.22 inches LCD display.
Takes 20mm bands, so third-party straps fit without an adapter.

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Size, fit and battery side by side, against any smartwatch we list.

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Unite battery life

Published runtime

Battery life4 days

Where it ranks among Polar watches

Everyday use4 days#7 of 7
Capacity174 mAh#7 of 7

See all 7 Polar watches ranked by battery life

Settings to change and the 24-hour idle test are on the battery check.

2D Dimension Schematics

Top view

Side view

Polar Unite 43.4mm × ≈50mm (est.) · 10.4mm thick

3D preview

Polar Unite on a wrist

What size band does the Unite take?

Lug width

20mm

Alternatives to the Unite

Unite specifications

Battery life: 4 days
Display: 1.22 inches
Resolution: 240 x 204 px
Water rating: Waterproof
Strap: 20 mm

Show all specificationsPolar's published specification, for reference · checked September 2026

Design

width: 43.4
height: 43.4
volume: 19.59 cm³
weight: 32 g
thickness: 10.4
resolution: 240 x 204 px
screen size: 1.22 inches
Display type: LCD
Has a display: Yes
width of band: 20 mm
water resistance: Waterproof
Always-On Display: No
has a touch screen: Yes
waterproof depth rating: 30 m
Watch band is replaceable: Yes
Has sapphire glass display: No
has branded damage-resistant glass: No

Battery

battery life: 4 days
battery power: 174 mAh
has wireless charging: No
has a removable battery: No
Has a solar power battery: No
has a rechargeable battery: Yes

Sensors

has GPS: No
has a compass: No
Has a barometer: No
has a gyroscope: No
Has a cadence sensor: No
has an accelerometer: Yes
Monitors perspiration: No
Has a heart rate monitor: Yes
Has a temperature sensor: No
Monitors blood oxygenation levels: No

Features

release date: 2020-06-30
Has a stopwatch: Yes
Has smart alarm: No
warranty period: 2 years
Has call control: No
Has silent alarm: Yes
has HRV tracking: Yes
Has notifications: Yes
Locates your phone: No
has voice commands: No
Acquires GPS faster: No
Has vibrating alerts: Yes
Can be used to answer calls: No
Has a built-in camera remote control function: No

Connectivity

has NFC: No
supports ANT+: No
supports Wi-Fi: No
has a cellular module: No
Is compatible with iOS: Yes
Is compatible with Android: Yes

Miscellaneous

Has auto pause: Yes
Available on PC: Yes
Is compatible with Windows: Yes
Is compatible with Mac OS X: Yes
has an external memory slot: No
has a battery level indicator: Yes
has a socket for a 3.5 mm audio jack: No
Compatible with external heart rate monitors: Yes

App & Software

Ad-free: Yes
Free app: Yes
Has coaching: Yes
Supports routes: Yes
Has achievements: Yes
Has goal setting: Yes
Has exercise diary: Yes
Predicts ovulation: No
Has weight tracking: No
Predicts start date: No
Tracks water intake: No
number of exercises: 130 (Polar Flow)
Has inactivity alerts: Yes
Has period notifications: No
Has temperature tracking: No
Provides activity reports: Yes
Displays fertile window notifications: No
Counts how many calories you've burned: Yes

Activity tracking

Measures pace: Yes
Tracks distance: Yes
Tracks elevation: Yes
Designed for golf: No
Tracks your sleep: Yes
Tracks steps taken: Yes
Designed for diving: No
Has a route tracker: No
Has exercise tagging: Yes
Has multi-sport mode: Yes
Tracks calorie intake: No
Provides sleep reports: Yes
Detects activities automatically: Yes
Has a stroke counter for swimming: No

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