Amazfit Active 2 (Square)

Works with: iPhone and Android
Display: AMOLED, 1.75 in
Case sizes: 36.9 mm
Battery: 10 days
GPS battery: 21 hours
Water resistance: 5 ATM
Weight: 31.4 g

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Amazfit Active 2 (Square) at a glance

Battery

Around two weeks

Up to 10 days in smartwatch mode. 21 hours with GPS.
GPS

Built-in GPS

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

AMOLED, 1.75 in

1.75 in, up to 2,000 nits and touchscreen.
Health

Heart, sleep and more

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

iPhone and Android

Payments and calls.
Build

5 ATM water rating

31.4 g. Sapphire lens.

Amazfit Active 2 (Square) full specifications

Overview

Brand	Amazfit
Model	Active 2 (Square)
Series	Active
Colours	Black
Also sold as	Active 2 Square

Platform & apps

Works with iPhone and Android phones, running Zepp OS.

No subscription needed.

Operating system	Zepp OS
Works with	iPhone and Android
Minimum iOS	iOS 15
Minimum Android	Android 7
Subscription	Not needed

Display

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

1.75 in, up to 2,000 nits and touchscreen.

Display type	AMOLED
Screen size	1.75 in
Resolution	390 x 450
Pixel density	341 ppi
Peak brightness	2,000 nits
Touchscreen	Yes
Controls	touchscreen, buttons

Design & durability

A 36.9 mm case weighing 31.4 g.

Rated 5 ATM: fine for swimming laps and showers. A sapphire lens resists scratches.

Case sizes	36.9 mm
Case shape	Square
Dimensions	43.32 x 36.9 x 9 mm
Thickness	9 mm
Weight (case)	31.4 g
Case material	fiber-reinforced polymer
Bezel material	Stainless steel
Lens	Sapphire Glass
Band material	Leather
Band width	20 mm
Fits wrists	150-210 mm
Water resistance	5 ATM
Water standard	ISO 22810:2010

Battery

Around two weeks: up to 10 days in smartwatch mode.

With GPS on, up to 21 hours. Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode)	10 days
Battery (GPS)	21 hours
All battery modes	Smartwatch: 10 days; Battery saver: 19 days; GPS: 21 hours
Battery capacity	260 mAh
Charging	puck
Full charge time	120 min

GPS & navigation

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

You can download maps to the watch.

GPS	Built-in
Maps	Downloadable maps
Navigation features	turn-by-turn, back-to-start, route import
Ski maps	Yes

Health & sensors

Tracks heart rate around the clock, plus blood oxygen, skin temperature and HRV.

For sleep, it offers a nightly sleep score.

Sensors	optical HR, SpO2, accelerometer, gyroscope, barometer, compass, ambient light, thermometer, skin temperature
Heart-rate sensor	BioTracker 6.0 PPG biometric sensor
Heart-rate tracking	24/7
High/low heart-rate alerts	Yes
Heart-rate variability	Yes
Blood oxygen (SpO2)	Yes
Skin temperature	Yes
Respiration rate	Yes
Sleep tracking	Sleep score
Stress tracking	Yes
Readiness score	Readiness score
Cycle tracking	Yes

Training

Tracks 160+ sports and activities.

It adds daily suggested workouts.

Sport profiles	160
Auto activity detection	Yes
Swim tracking	Pool and open water
Training metrics	VO2 max, recovery time, HRV
Adaptive coaching	Yes
Strength rep counting	Yes
External sensors	Bluetooth HR strap, power meter, speed/cadence, thermometer

Smart features

Smart extras include contactless payments and calls on the wrist.

Voice assistant: Zepp Flow.

Notifications	Yes
Message replies	Android
Calls on the watch	Yes
Speaker	Yes
Microphone	Yes
Voice assistant	Zepp Flow
Contactless payments	Yes
Payment service	Zepp Pay
Bluetooth	Bluetooth 5.2
Find my phone	Yes

Diving, golf & more

Specialist modes	ski

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