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Samsung
Samsung Smartwatch Wear OS

Samsung Galaxy Watch9

Works with
Android only
Display
AMOLED, 1.5 in
Case sizes
40 / 44 mm
Battery
40 hours
Water resistance
5 ATM
Weight
34 g
Cellular
LTE version
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Samsung Galaxy Watch9 at a glance

Samsung Galaxy Watch9 full specifications

Overview

Brand Samsung
Model Galaxy Watch9
Series Galaxy Watch
Replaces Galaxy Watch8
Versions 40 mm
Colours Cream, Graphite, Silver

Platform & apps

Needs an Android phone, running Wear OS.

It has an app store for extra apps and watch faces. IFIT adds extra insights, but the core features are free.

Operating system Wear OS
Works with Android only
Minimum Android Android 13
Chipset Snapdragon Wear Elite Platform
RAM 2,000 MB
Storage 32 GB
App store Yes
Software support 5 years
Subscription Optional
Subscription name iFIT

Display

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

1.5 in, up to 3,000 nits, always-on option and touchscreen.

Display type AMOLED
Display name Super AMOLED
Screen size 1.5 in
Resolution 480 x 480
Pixel density 453 ppi
Peak brightness 3,000 nits
Colour display Yes
Always-on display Yes
Touchscreen Yes
Controls buttons

Design & durability

Comes in 2 case sizes (40, 44 mm) weighing 34 g.

Rated 5 ATM: fine for swimming laps and showers. A sapphire lens resists scratches. Tested to MIL-STD-810 for shock, heat and cold.

Case sizes 40 / 44 mm
Case shape Round
Dimensions 46 x 43.7 x 8.6 mm
Thickness 8.6 mm
Weight (case) 34 g
Case material Aluminium
Lens sapphire
Band material silicone
Water resistance 5 ATM
IP rating IP68
Water standard ISO 22810:2010
MIL-STD-810 tested Yes

Battery

Charge most nights: up to 40 hours in smartwatch mode.

With the always-on display, about 30 hours. Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode) 40 hours
All battery modes Smartwatch: 40 hours; Always-on display: 30 hours
Battery capacity 445 mAh
Charging wireless
Wireless charging Yes

GPS & navigation

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

GPS Built-in
Satellite systems GPS, GLONASS, Galileo, BeiDou, QZSS

Health & sensors

A health-focused watch: it measures ECG, blood pressure, blood oxygen, skin temperature and HRV.

For sleep, it offers sleep coaching. ECG availability can depend on your country.

Sensors optical HR, ECG electrode, SpO2, skin temperature, accelerometer, gyroscope, barometer, compass, ambient light
Heart-rate sensor BioActive
Heart-rate tracking 24/7
ECG Yes
Heart-rate variability Yes
Blood oxygen (SpO2) Yes
Skin temperature Yes
Respiration rate Yes
Blood pressure cuff-calibrated
Sleep tracking Sleep coaching
Sleep apnea alerts Yes
Energy score Energy Score
Body composition Yes

Training

Tracks your workouts and daily activity.

It adds daily suggested workouts.

Auto activity detection Yes
Training metrics VO2 max, Daily Cardio Load
Adaptive coaching Yes

Smart features

Smart extras include an LTE version, contactless payments, music storage and calls on the wrist.

Voice assistant: Gemini. LTE needs a carrier plan.

Notifications Yes
Message replies Android
Calls on the watch Yes
Speaker Yes
Microphone Yes
Voice assistant Gemini
Contactless payments Yes
Cellular LTE version available
Music storage Yes
Wi-Fi 802.11a/b/g/n 2.4GHz+5GHz
Bluetooth Bluetooth 6.0

Diving, golf & more

Diving None

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

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