Apple Watch Series 3 (42mm) tech specs


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Body
Weight 32.3 g (1.14 oz)
Width 36.4 mm (1.43 in)
Height 42.5 mm (1.67 in)
Thickness 11.4 mm (0.45 in)
Wrist size
Band width
Water resistant 5 ATM
Display
Display size
Display type OLED
Display resolution 312 x 390px
Touchscreen Yes
Always On
Connectivity
Cellular networks
Wi-Fi Yes
Built-in GPS Yes
NFC Yes
Bluetooth Yes
Smart features
Operating system watchOS
Assistant
Contactless Payments Apple Pay
Make and Answer Calls Yes
Send text responses Yes
Control phone music Yes
Local music storage Yes
Storage 8 GB
Health features
Sleep tracking Yes
Fall detection
Heart rate Yes
SpO2
ECG
Skin temperature sensor
Battery
Battery life 18 hours
Battery life in GPS-mode
Sensors
Compass
Barometric altimeter Yes
Ambient light sensor Yes
Accelerometer Yes
Gyroscope Yes
Offers
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