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Specifications
Processor
S9 SiP (64-bit dual-core processor) with 4-core Neural Engine
Display
Always-On Retina LTPO OLED (41mm 352×430 / 45mm 396×484), up to 2000 nits brightness
Battery
Battery Life:Up to 18 hours (typical usage) / up to 36 hours (Low Power Mode)
Charging:Magnetic fast charging (up to 80% in ~45 minutes)
Sensors
Electrical heart sensor (ECG), 3rd-gen optical heart sensor, Blood oxygen sensor, Temperature sensor
Water Resistance
50 m (swimproof)
Connectivity
Bluetooth 5.3, Wi-Fi, GPS/GNSS, optional Cellular, 2nd-gen Ultra Wideband
Physical Aspects
Design:41mm & 45mm sizes; aluminum or stainless steel cases; Ion-X glass (aluminum) or sapphire crystal (steel)
Weight:31.9 g (41mm aluminum) to ~51.5 g (45mm stainless steel)