Samsung Galaxy Watch9

What’s new: a new chip and a closer fit

Watch9 and Galaxy Watch Ultra2 are the first Galaxy Watches on Qualcomm’s Snapdragon Wear Elite, a 3nm penta-core chip, paired here with 2GB of RAM and 32GB of storage. It runs Wear OS 7 with Samsung’s One UI 9 Watch on top.

Samsung also changed how the watch sits on your wrist. The Dynamic Lug System holds the case closer to your skin for better sensor contact, and the new Sport Band weighs 14 grams, against 22–23 grams for earlier bands.

Battery and charging

Spec	Galaxy Watch9
Battery	390 mAh (40mm); 445 mAh (44mm)
Always-on display on	Up to 30 hours
GPS workouts	Not published
Fast charge, 40mm	50% in about 30 minutes; full in about 80
Fast charge, 44mm	45% in about 30 minutes; full in about 90

That’s a day and a bit with the screen always on, so Watch9 is a watch you charge daily. The upside is that charging is quick: it’s wireless, and half an hour on the charger gets you about half a battery.

Health, sleep and training

Samsung’s BioActive sensor combines an optical heart sensor, an electrical heart signal sensor and bioelectrical impedance (BIA), alongside a separate temperature sensor. Samsung Health turns those readings into scores:

• Energy Score: a daily readiness score from your recent sleep and activity trends.
• Vitals: overnight heart rate, HRV, respiratory rate, skin temperature and blood oxygen, compared with your own baseline.
• Sleep Coaching: a 3–4 week program that starts once the watch has learned your sleep patterns.
• Heart Health Score: a lifestyle score, not a diagnosis; it needs Samsung Health and an account.
• Daily Cardio Load and Fitness Index: training-load and recovery guidance, and a fitness rating built from BIA, VO2 max and your activity history.
• Running Coach: a 3–5 week plan built around your ability.

Hearing alerts warn you about unsafe noise levels. Fall detection isn’t called out for Watch9.

Build, bands and connections

The aluminum case has Samsung’s cushion shape and measures 42.7 × 40.4mm on the 40mm and 46.0 × 43.7mm on the 44mm. It’s rated 5 ATM and IP68 and tested to MIL-STD-810H. Bands come in Sports, Misty and Fabric styles; Ultra2’s Marine, PeakForm and Trail bands are a separate set.

Watch9 has Bluetooth 6.0, Wi-Fi on 2.4GHz and 5GHz, dual-frequency (L1+L5) GPS, and NFC for Samsung Wallet if your card issuer supports it. In the US you can raise your wrist and talk to Gemini without a wake word; Google decides where that works and in which languages.

Watch9 or Galaxy Watch Ultra2?

Spec	Galaxy Watch9	Galaxy Watch Ultra2	Apple Watch Series 12
Case	40mm or 44mm aluminum; 31.5–34.0 g	47mm titanium; 61.5 g	42mm or 46mm; aluminum, titanium or ceramic
Peak brightness	3,000 nits	5,000 nits (localized)	2,000 nits
Battery	390–445 mAh; up to 30 hours with always-on	800 mAh; up to 60 hours with always-on	24, 38 and 10 hours by mode
Software	Wear OS 7	Wear OS 7	watchOS 27
Phone	Android 13 or later	Android 13 or later	iPhone 11 or later
Water and diving	5 ATM, IP68	10 ATM, EN13319 dive rating	50m
US price	From $379.99	$699.99	$399

Galaxy Watch Ultra2 is the Galaxy Watch for diving, trail running and long days. It adds an EN13319 dive rating and Trail Run, an 800 mAh battery rated for 60 hours with the always-on display, and a screen that peaks at 5,000 nits in localized areas, in a 47mm titanium case that weighs 61.5 grams. It costs $699.99. The health scores are the same on both, so choosing Watch9 doesn’t cost you any of them.

If you use an iPhone, neither Galaxy watch will pair with it; Apple Watch Series 12 is Apple’s everyday watch at $399.

Price

Samsung’s US prices start at $379.99 for the 40mm Bluetooth model and $429.99 for LTE, and the 44mm costs more. Samsung’s launch offers included a 60-day Strava trial and a 2-month iFIT trial. Promotions come and go, so compare the exact size and connection before you buy.