Huawei Watch 4

Works with: iPhone and Android
Display: LTPO OLED, 1.5 in
Case sizes: 46.2 / 47.6 mm
Battery: 3 days
Water resistance: 5 ATM
Weight: 48 g

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Huawei Watch 4 at a glance

Battery

A few days

Up to 3 days in smartwatch mode.
GPS

Built-in GPS

No maps. Runs and rides without your phone.
Display

LTPO OLED, 1.5 in

1.5 in.
Health

ECG on the wrist

Measures ECG and skin temperature.
Phone & smart

iPhone and Android

Notifications from your phone.
Build

5 ATM water rating

48 g. 2 case sizes.

Huawei Watch 4 full specifications

Overview

Brand	Huawei
Model	Watch 4
Series	Watch 4 Series
Versions	HUAWEI WATCH 4, HUAWEI WATCH 4 Pro

Platform & apps

Works with iPhone and Android phones, running HarmonyOS.

Operating system	HarmonyOS
Works with	iPhone and Android
Minimum iOS	iOS 13
Minimum Android	Android 6
Software support	2 years

Display

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

1.5 in.

Display type	LTPO OLED
Display name	LTPO AMOLED
Screen size	1.5 in
Resolution	466 x 466
Pixel density	310 ppi
Colour display	Yes
Controls	touchscreen, buttons, crown

Design & durability

Comes in 2 case sizes (46.2, 47.6 mm) weighing 48 g.

Rated 5 ATM: fine for swimming laps and showers.

Case sizes	46.2 / 47.6 mm
Case shape	Round
Dimensions	46.2 x 46.2 x 10.9 mm
Thickness	10.9 mm
Weight (case)	48 g
Case material	Stainless steel
Band material	Fluoroelastomer
Fits wrists	140-210 mm
Water resistance	5 ATM
IP rating	IP68
Water standard	ISO 22810:2010
Operating temperature	0 to 35 °C

Battery

A few days: up to 3 days in smartwatch mode.

Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode)	3 days
Charging	cradle
Wireless charging	Yes

GPS & navigation

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

GPS	Built-in

Health & sensors

A health-focused watch: it measures ECG and skin temperature.

ECG availability can depend on your country.

Sensors	accelerometer, gyroscope, compass, optical HR, ambient light, barometer, skin temperature, ECG electrode, depth
ECG	Yes
Skin temperature	Yes

Smart features

Speaker	Yes
Microphone	Yes
Bluetooth	Bluetooth 5.2

Diving, golf & more

It works as a dive computer for freediving.

Rated to 30 m.

Diving	Freediving
Max dive depth	30 m
Dive standard	EN 13319

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