Model NameApple Watch Series 8
Dimensions (Aluminum, 45mm)45 x 38 x 10.7 mm
Weight:- 38.8 g
Weight:- 38.8 g
Dimensions (Aluminum, 41mm)41 x 35 x 10.7 mm
Weight:- 32 g
Weight:- 32 g
Dimensions (Nike Aluminum, 45mm)45 x 38 x 10.7 mm
Weight:- 38.8 g
Weight:- 38.8 g
Dimensions (Nike Aluminum, 41mm)41 x 35 x 10.7 mm
Weight:- 32 g
Weight:- 32 g
Dimensions (Stainless Steel, 45mm)45 x 38 x 10.7 mm
Weight:- 51.5 g
Weight:- 51.5 g
Dimensions (Stainless Steel, 41mm)41 x 35 x 10.7 mm
Weight:- 42.3 g
Weight:- 42.3 g
Build (Aluminum)Glass front, ceramic/sapphire crystal back, aluminum frame
Build (Nike Aluminum)Glass front, ceramic/sapphire crystal back, aluminum frame
Build (Stainless Steel)Glass front, ceramic/sapphire crystal back, stainless steel frame
SIM (Nike Aluminum)No eSIM or eSIM
IP6X certified
ECG certified (region dependent SW application; HW available on all models)
IP6X certified
ECG certified (region dependent SW application; HW available on all models)
SIM (Stainless Steel)eSIM
IP6X certified
ECG certified (region dependent SW application; HW available on all models)
IP6X certified
ECG certified (region dependent SW application; HW available on all models)
Display TypeRetina LTPO OLED, 1000 nits (peak)
Display Size (45mm)1.9 inches
Display Size (41mm)1.69 inches
Resolution (45mm)484 x 396 pixels (~326 ppi density)
Resolution (41mm)430 x 352 pixels (~326 ppi density)
Protection (Nike Aluminum)Ion-X strengthened glass
Always-on display
Always-on display
Protection (Aluminum)Ion-X strengthened glass
Always-on display
Always-on display
Protection (Stainless Steel)Sapphire crystal glass
Always-on display
Always-on display
OSwatchOS
ChipsetApple S8
CPUDual-core
GPUPowerVR
Memory Card SlotNo
Internal32GB 1GB RAM
eMMC 5.1
eMMC 5.1
Main Camera – SingleNo
LoudspeakerYes
3.5mm JackNo
WLANWi-Fi 802.11 b/g/n, dual-band
Bluetooth5.3, A2DP, LE
PositioningGPS, GLONASS, GALILEO, QZSS, BDS
NFCYes
RadioNo
USBNo
SensorsAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)
Temperature sensing (0.01˚ accuracy)
Natural language commands and dictation (talking mode)
Ultra Wideband (UWB) support
Temperature sensing (0.01˚ accuracy)
Natural language commands and dictation (talking mode)
Ultra Wideband (UWB) support
Battery Type (45mm)Li-Ion 308 mAh, non-removable
Battery Type (41mm)Li-Ion 282 mAh, non-removable
ChargingWireless charging
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