Apple Watch Series 4 (40mm) vs Apple Watch Series 3 (42mm) 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 4 (40mm) | Apple Watch Series 3 (42mm) |
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Released
·
September 2018
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Released
·
2017
|
|
1.6-inch · 394x324px
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1.6-inch · 390x312px
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1GB · 16GB
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768GB · 16GB
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225 mAh
|
341 mAh
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Design
| Dimensions | |
|---|---|
| 1.57 x 1.34 x 0.42 inches 40.0 x 34.0 x 10.7 mm |
1.67 x 1.43 x 0.45 inches 42.5 x 36.4 x 11.4 mm |
| Weight | |
| 1.06 oz / 30.1 g | 1.86 oz / 52.8 g |
| Materials | |
| Frame: Aluminum | Back: Ceramic Frame: Stainless steel |
| Resistance | |
| Water | Water, Dust |
| Colors | |
| Silver, Black | Space Black, Silver |
Display
| Size | |
|---|---|
| 1.6-inch, 57.48% screen-to-body | 1.6-inch, 55.61% screen-to-body |
| Type | |
| OLED, 1000 nits | OLED, 1000 nits |
| Resolution | |
| 394x324px, 325 PPI | 390x312px, 303 PPI |
| Protection | |
| Sapphire | Sapphire |
| Features | |
| Pressure-sensitive, Scratch-resistant glass, Ambient light sensor | Pressure-sensitive, Scratch-resistant glass |
Hardware
| System chip | |
|---|---|
| Apple S4 (7 nm) | Apple S3 |
| Processor | |
| Dual-core | Dual-core |
| GPU | |
| Apple G11M | PowerVR |
| Memory | |
| 1GB/16GB | 768GB/16GB |
| Storage expansion | |
| not expandable | |
| OS | |
| watchOS (9.x, 8.x, 7.x, 6.x, 5) | watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x) |
Battery
| Type | |
|---|---|
| 225 mAh | 341 mAh |
| Charging | |
| Magnetic charging | Qi wireless charging |
Connectivity & Features
| Bluetooth | |
|---|---|
| 5.0 | 4.2 |
| WLAN | |
| b,g,n 802.11 b, g, n | b,g,n 802.11 b, g, n |
| Sensors | |
| Accelerometer, Gyroscope, Heart rate, Barometer, Ambient light sensor | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer |
| Location | |
| Glonass, Galileo, QZSS | A-GPS, Glonass |
| 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, HSPA | LTE, HSDPA+ (4G) 42.2 Mbit/s |
| 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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