MODEL Samsung Galaxy Watch Ultra (2025) – LTE, 47mm
DISPLAY 1.5" Super AMOLED, Always-On, up to 3,000 nits brightness, sapphire crystal protection
SCREEN RESOLUTION 480 × 480 pixels
SCREEN SIZE 1.5 inches (main display)
Microphone Input Yes, includes mic and built-in speaker (supports calls over LTE)
BLUETOOTH Bluetooth 5.3
WATERPROOF 10 ATM water resistance; IP68 dust/water protection; MIL-STD-810H rugged certification
GPS Dual-frequency GPS (L1 + L5), supports GPS, GLONASS, BeiDou, Galileo
OS Compatibility Wear OS 6 with One UI Watch 8 OS; supports Android 12+ devices
Sensors BioActive Sensor (HR, ECG, BIA, SpO2, skin temperature), temperature, accelerometer, gyroscope, barometer, compass, light sensor