Samsung Galaxy Watch 9
Quick details
Released
2026-07
Dimensions
44 mm: 46.0 x 43.7 x 8.6 mm; 40 mm: 42.7 x 40.4 x 8.6 mm
Operating system
Wear OS 7 Powered by Samsung; One UI 9 Watch
Display 44 mm: 1.47 inches (37.3 mm); 40 mm: 1.34 inches (34 mm) Super AMOLED, full-colour Always On Display
Battery life Up to 40 hours with AOD off; up to 30 hours with AOD on
Water resistance 5 ATM; IP68; MIL-STD-810H
GPS Yes
Sensors accelerometer, gyroscope, barometer, compass, geomagnetic sensor, optical heart rate, electrical heart sensor, SpO2, temperature, ambient light, GPS
Technical specifications
General
Release date 2026-07
Product type Smartwatch
Physical size 44 mm: 46.0 x 43.7 x 8.6 mm; 40 mm: 42.7 x 40.4 x 8.6 mm
Weight 44 mm: 34.0 g; 40 mm: 31.5 g
Material Armor Aluminum case; sapphire crystal
Water resistance 5 ATM; IP68; MIL-STD-810H
Color options Graphite, Silver, Cream
Display type Super AMOLED, full-colour Always On Display
Display size 44 mm: 1.47 inches (37.3 mm); 40 mm: 1.34 inches (34 mm)
Display resolution 44 mm: 480 x 480 pixels; 40 mm: 438 x 438 pixels
Display brightness Up to 3,000 nits
Display protection Sapphire crystal
Battery Built-in rechargeable battery; 44 mm: 445 mAh; 40 mm: 390 mAh
Battery life Up to 40 hours with AOD off; up to 30 hours with AOD on
Charging Fast wireless charging
Sensors
GNSS type Built-in dual-band GNSS
GPS Yes
GALILEO Yes
GLONASS Yes
QZSS Yes
Beidou Yes
Accelerometer Yes
Gyroscope Yes
Barometric altimeter Yes
Compass Yes
Geomagnetic Yes
Ambient light sensor Yes
Optical heart rate Yes
Electrical heart rate Yes
SpO2 Yes
Temperature Yes
Galvanic skin response Yes
Microphone Yes
Speakers Yes
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors Yes
Sports tracking Yes
Sleep Yes
Heart rate Yes
HRV Yes
Stress Yes
Blood oxygen Yes
Respiration rate Yes
Skin temperature Yes
ECG Yes
Blood pressure Yes (Samsung Health Monitor; availability varies by market, calibration required)
Body composition Yes
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Hyperglycemia risk assessment No
Arterial stiffness detection No
Pulse wave arrhythmia analysis Yes
Daily smart features
Smartphone compatibility Android with Google Mobile Services
Operating system at launch Wear OS 7 Powered by Samsung; One UI 9 Watch
Processor Qualcomm Snapdragon Wear Elite / SDW6100 (3 nm, penta-core)
RAM 2 GB
Storage 32 GB
Bluetooth Yes (6.0)
Wi-Fi Yes (802.11 a/b/g/n, 2.4/5 GHz)
NFC / connected pay Yes
UWB No
Cellular Optional LTE/eSIM
Smartphone notifications Yes
Bluetooth calling Yes
Smartphone music control Yes
On-board music storage Yes
Voice assistant Google Gemini / Bixby
Links
These technical specs are correct to the best of our knowledge at the time of publishing.
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