Apple Watch Series 3 (42mm) 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.
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| Apple Watch Series 3 (42mm) | Apple Watch Series 4 (40mm) |
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Released
·
2017
|
Released
·
September 2018
|
|
1.6-inch · 390x312px
|
1.6-inch · 394x324px
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|
768GB · 16GB
|
1GB · 16GB
|
|
341 mAh
|
225 mAh
|
Design
| Dimensions | |
|---|---|
| 1.67 x 1.43 x 0.45 inches 42.5 x 36.4 x 11.4 mm |
1.57 x 1.34 x 0.42 inches 40.0 x 34.0 x 10.7 mm |
| Weight | |
| 1.86 oz / 52.8 g | 1.06 oz / 30.1 g |
| Materials | |
| Back: Ceramic Frame: Stainless steel |
Frame: Aluminum |
| Resistance | |
| Water, Dust | Water |
| Colors | |
| Space Black, Silver | Silver, Black |
Display
| Size | |
|---|---|
| 1.6-inch, 55.61% screen-to-body | 1.6-inch, 57.48% screen-to-body |
| Type | |
| OLED, 1000 nits | OLED, 1000 nits |
| Resolution | |
| 390x312px, 303 PPI | 394x324px, 325 PPI |
| Protection | |
| Sapphire | Sapphire |
| Features | |
| Pressure-sensitive, Scratch-resistant glass | Pressure-sensitive, Scratch-resistant glass, Ambient light sensor |
Hardware
| System chip | |
|---|---|
| Apple S3 | Apple S4 (7 nm) |
| Processor | |
| Dual-core | Dual-core |
| GPU | |
| PowerVR | Apple G11M |
| Memory | |
| 768GB/16GB | 1GB/16GB |
| Storage expansion | |
| not expandable | |
| OS | |
| watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x) | watchOS (9.x, 8.x, 7.x, 6.x, 5) |
Battery
| Type | |
|---|---|
| 341 mAh | 225 mAh |
| Charging | |
| Qi wireless charging | Magnetic charging |
Connectivity & Features
| Bluetooth | |
|---|---|
| 4.2 | 5.0 |
| WLAN | |
| b,g,n 802.11 b, g, n | b,g,n 802.11 b, g, n |
| Sensors | |
| Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer | Accelerometer, Gyroscope, Heart rate, Barometer, Ambient light sensor |
| Location | |
| A-GPS, Glonass | Glonass, Galileo, QZSS |
| Other | |
| NFC | NFC |
Multimedia
| Headphones | |
|---|---|
| No 3.5mm jack | |
| Speakers | |
| Loudspeaker | Loudspeaker |
| Additional microphone(s) | |
| Noise cancellation | |
Cellular
| 4G (FDD) Bands | |
|---|---|
| 1, 3, 5, 7, 8, 18, 19, 20, 26 | |
| 3G Bands | |
| 1, 5, 8 | |
| Data Speed | |
| LTE, HSDPA+ (4G) 42.2 Mbit/s | LTE, HSPA |
| SIM type | |
| eSIM | eSIM |
Alternative variants
With stainless steel case
| Weight | 1.40 oz / 39.8 g |
|---|---|
| Materials | Frame: Stainless steel |
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