Apple Watch Series 4 vs Apple Watch Series 3
Apple Watch Series 3
2017 · $90 today
8356
Dashed outline = score at launch
Why Apple Watch Series 4 is better
No standout numeric advantages.
Why Apple Watch Series 3 is better
No standout numeric advantages.
Verdict
No outright leader — they split the dimensions today.
Spec by spec
| Spec | Apple Watch Series 4 | Apple Watch Series 3 |
|---|---|---|
| Display | ||
| Screen Size | 40mm / 44mm | — |
| Resolution | 368 x 448 | — |
| Always-On Display | No | — |
| Battery & Charging | ||
| Battery Life | 18 hours | — |
| Charging | Magnetic fast charging | — |
| Health & Sensors | ||
| ECG | Yes | No |
| Blood Oxygen (SpO2) | No | — |
| Built-in GPS | Yes | — |
| Build & Connectivity | ||
| Water Resistance | 50m | — |
| Case Material | Aluminum / Stainless Steel / Titanium | — |
| Cellular Option | Yes | — |
| Health & fitness | ||
| Heart rate | — | Optical, continuous |
| ECG | Yes | No |
| GPS | — | Built-in |
| Water resistance | — | 50 m |
| Hardware | ||
| Display | — | 1.65" OLED, 1000 nits |
| Battery | — | 18 h |
| Cellular | — | LTE option |
| Weight | — | 32.3 g |