Xiaomi Smart Band 9

Works with: iPhone and Android
Display: AMOLED, 1.62 in
Case sizes: 46.53 mm
Battery: 21 days
Water resistance: 5 ATM
Weight: 15.8 g

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Xiaomi Smart Band 9 at a glance

Battery

Weeks between charges

Up to 21 days in smartwatch mode.
Display

AMOLED, 1.62 in

1.62 in, up to 1,200 nits, always-on option and touchscreen.
Health

Heart, sleep and more

Measures blood oxygen.
Phone & smart

iPhone and Android

Notifications from your phone.
Build

5 ATM water rating

15.8 g.

Xiaomi Smart Band 9 full specifications

Overview

Brand	Xiaomi
Model	Smart Band 9
Series	Smart Band
Colours	Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue, Titan Gray

Platform & apps

Works with iPhone and Android phones.

Operating system	other
Works with	iPhone and Android
Minimum iOS	iOS 12
Minimum Android	Android 8

Display

A vivid, high-contrast screen that is easy to read indoors and out.

1.62 in, up to 1,200 nits, always-on option and touchscreen.

Display type	AMOLED
Screen size	1.62 in
Resolution	192 x 490
Peak brightness	1,200 nits
Colour display	Yes
Always-on display	Yes
Touchscreen	Yes
Controls	touchscreen

Design & durability

A 46.53 mm case weighing 15.8 g.

Rated 5 ATM: fine for swimming laps and showers.

Case sizes	46.53 mm
Case shape	Band
Dimensions	46.53 x 21.63 x 10.95 mm
Thickness	10.95 mm
Weight (case)	15.8 g
Case material	Aluminium alloy
Band material	TPU
Band fitting	quick-release
Fits wrists	135-210 mm
Water resistance	5 ATM
Water standard	GB/T 30106:2013

Battery

Weeks between charges: up to 21 days in smartwatch mode.

With the always-on display, about 9 days. Real battery life depends on screen brightness, notifications and workouts.

Battery (smartwatch mode)	21 days
All battery modes	Smartwatch: 21 days; Always-on display: 9 days
Battery capacity	233 mAh
Charging	proprietary-plug
Full charge time	60 min

Health & sensors

Tracks heart rate around the clock, plus blood oxygen.

For sleep, it offers sleep stages.

Sensors	accelerometer, gyroscope, optical HR, ambient light
Heart-rate tracking	24/7
High/low heart-rate alerts	Yes
Blood oxygen (SpO2)	Yes
Sleep tracking	Sleep stages
Stress tracking	Yes
Cycle tracking	Yes

Training

Tracks 150+ sports and activities.

Sport profiles	150
Training metrics	VO2 max, training load, recovery time
Running dynamics	Yes

Smart features

Notifications	Yes
Find my phone	Yes
Flashlight	Yes

Diving, golf & more

Diving	None

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