Apple Watch Series 3 (42mm) specs - PhoneArena

Apple Watch Series 3 (42mm) Specs


Apple Watch Series 3 comes with an always-on display, a built-in compass, LTE support, and Apple S3 chip. The smartwatch has sapphire scratch resistant glass on the front, ceramic back and stainless steel frame. The 42mm case version is appropriate for 140-210mm wrists.


  • Supports wireless charging

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The Apple Watch Series 3 (42mm) is most commonly compared with these phones:

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Size: 1.6 inches
Resolution: 390 x 312 pixels, 303 PPI
Technology: OLED
Screen-to-body: 55.61 %
Peak brightness: 1000 cd/m2 (nit)
Features: Pressure-sensitive, Scratch-resistant glass (Sapphire)


System chip: Apple S3
Processor: Dual-core
GPU: PowerVR
RAM: 768GB
Internal storage: 16GB
OS: watchOS (7.x, 6.1, 6.x, 5.1, 5, 4.x)


Capacity: 341 mAh
Type: Not user replaceable
Charging: Qi wireless charging


Dimensions: 1.67 x 1.43 x 0.45 inches (42.5 x 36.4 x 11.4 mm)
Weight: 1.86 oz (52.8 g)
Materials: Back: Ceramic; Frame: Stainless steel
Resistance: Water, Dust
Colors: Space Black, Silver


LTE (FDD): Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+)
UMTS: Bands 1(2100), 5(850), 8(900)
Data Speed: LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type: eSIM


Headphones: No 3.5mm jack
Speakers: Loudspeaker

Connectivity & Features

Bluetooth: 4.2
Wi-Fi: 802.11 b, g, n
Location: A-GPS, Glonass
Sensors: Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer
Other: NFC
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