Apple Watch Series 2 (38mm) vs Apple Watch Series 4 (40mm) 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 (38mm) | Apple Watch Series 4 (40mm) |
Released
·
September 2016
|
Released
·
September 2018
|
1.5-inch · 340 x 272 px
|
1.6-inch · 394 x 324 px
|
0.5GB · 8GB
|
1GB · 16GB
|
273 mAh
|
225 mAh
|
Display
Size | |
---|---|
1.5-inch | 1.6-inch |
Resolution | |
340 x 272 px, 290 PPI | 394 x 324 px, 325 PPI |
Technology | |
OLED | OLED |
Screen-to-body | |
55.12 % | 57.48 % |
Peak brightness | |
1000 cd/m2 (nit) | 1000 cd/m2 (nit) |
Features | |
Pressure-sensitive, Ambient light sensor | Pressure-sensitive, Scratch-resistant glass (Sapphire), Ambient light sensor |
Hardware
System chip | |
---|---|
Apple S2 (16 nm) | Apple S4 (7 nm) |
Processor | |
Dual-core, 780 MHz, Cortex-A7 | Dual-core |
GPU | |
PowerVR G6200 | Apple G11M |
RAM | |
0.5GB | 1GB |
Internal storage | |
8GB, not expandable | 16GB, not expandable |
OS | |
watchOS (6.x, 5.1, 5, 4.x, 3.x) | watchOS (9.x, 8.x, 7.x, 6.x, 5) |
Device type | |
Smartwatch | Smartwatch |
Battery
Capacity | |
---|---|
273 mAh | 225 mAh |
Type | |
Not user replaceable | Not user replaceable |
Charging | |
Magnetic charging | Magnetic charging |
Camera
Design
Dimensions | |
---|---|
1.52 x 1.31 x 0.45 inches (38.6 x 33.3 x 11.4 mm) |
1.57 x 1.34 x 0.42 inches (40.0 x 34.0 x 10.7 mm) |
Weight | |
1.48 oz(41.9 g) | 1.06 oz(30.1 g) |
Materials | |
Frame: Stainless steel | Frame: Aluminum |
Resistance | |
Water | Water |
Colors | |
Silver, Black | Silver, Black |
Cellular
Data Speed | |
---|---|
LTE, HSPA | |
SIM type | |
eSIM |
Multimedia
Speakers | |
---|---|
Loudspeaker | Loudspeaker |
Additional microphone(s) | |
Noise cancellation |
Connectivity & Features
Bluetooth | |
---|---|
4.0 | 5.0 |
Wi-Fi | |
802.11 b,g,n | 802.11 b,g,n |
Location | |
Glonass, Galileo | Glonass, Galileo, QZSS |
Sensors | |
Accelerometer, Gyroscope, Heart rate | Accelerometer, Gyroscope, Heart rate, Barometer |
Other | |
NFC | NFC |
Alternative variants
With aluminum frame
Weight | 0.99 oz(28.2 g) |
---|---|
Materials | Frame: Aluminum |
With stainless steel case
Weight | 1.40 oz(39.8 g) |
---|---|
Materials | Frame: Stainless steel |
Links
Full specifications | |
---|---|
Apple Watch Series 2 (38mm) Specs | Apple Watch Series 4 (40mm) Specs |