Apple Watch Series 2 (42mm) vs Apple Watch Series 1 (38mm) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.


Apple Watch Series 2 (42mm)	Apple Watch Series 1 (38mm)
Released · September 2016	Released · April 2015
1.6-inch · 390x312px	1.5-inch · 340x272px
0.5GB · 8GB	0.5GB · 8GB
334 mAh	205 mAh

Design

Dimensions
1.67 x 1.31 x 0.45 inches 42.5 x 33.3 x 11.4 mm	1.52 x 1.31 x 0.41 inches 38.6 x 33.3 x 10.5 mm
Weight
1.85 oz / 52.4 g	0.88 oz / 25.0 g
Materials
Frame: Stainless steel	Back: Plastic Frame: Aluminum
Resistance
Water	Yes; IPX7
Colors
Silver, Black	Silver, Gold, Rose Gold, Gray

Display

Size
1.6-inch, 60.71% screen-to-body	1.5-inch, 55.12% screen-to-body
Type
OLED, 1000 nits	OLED, 450 nits
Resolution
390x312px, 303 PPI	340x272px, 290 PPI
Features
Pressure-sensitive, Ambient light sensor	Pressure-sensitive, Ambient light sensor

Hardware

System chip
Apple S2 (16 nm)	Apple S1P (28 nm)
Processor
Dual-core 780 MHz Cortex-A7	Dual-core 520 MHz Cortex-A7
GPU
PowerVR G6200	PowerVR G6200
Memory
0.5GB/8GB	0.5GB/8GB
Storage expansion
not expandable	not expandable
OS
watchOS (6.x, 5.1, 5, 4.x, 3.x)	watchOS (6.x, 5.1, 5, 4.x, 3.x)

Battery

Type
334 mAh	205 mAh
Charging
Magnetic charging	Magnetic charging

Connectivity & Features

Bluetooth
4.0	4.0
WLAN
b,g,n 802.11 b, g, n	b,g,n 802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Heart rate, Ambient light sensor	Accelerometer, Gyroscope, Heart rate, Ambient light sensor
Location
Glonass, Galileo
Other
NFC	NFC

Discover more

Full Specs
Apple Watch Series 2 (42mm) Specs

Full Specs
Apple Watch Series 1 (38mm) Specs

Multimedia

Speakers
Loudspeaker	Loudspeaker

Alternative variants

With aluminum frame


Weight	1.21 oz / 34.2 g
Materials	Frame: Aluminum