Between the Watch SE 3 and Pixel Watch 4, the Watch SE 3 comes out ahead in display size and weight, while the Pixel Watch 4 wins on peak brightness and battery life. Overall, the Watch SE 3 scores 56.1 and the Pixel Watch 4 scores 47.4 on our Mars Score.
Which should you buy?
The Watch SE 3 is the clear pick on raw spec strength, leading by 8.7 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Watch SE 3 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are display size, weight.
Pick the Pixel Watch 4 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are peak brightness, battery life, ecg, among others.
Both ship with comparable cellular, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the Watch SE 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Apple - Watch SE 3 wins
- ▲Display size — 27.14% more. 1.78 " vs 1.4 ".
- ▲Weight — 4.00 g less. 33 vs 37.
Why Google - Pixel Watch 4 wins
- ▲Peak brightness — 200.00% more. 3000 nits vs 1000 nits.
- ▲Battery life — 166.67% more. 48 h vs 18 h.
- ▲Has ECG.
- ▲Has SpO2.
Spec comparison
Design
| Spec | Apple - Watch SE 3 | Google - Pixel Watch 4 |
|---|---|---|
| Case size | 44 mm | 45 mmlead |
| Weight | 33 glead | 37 g |
| Case material | aluminum | aluminum |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Apple - Watch SE 3 | Google - Pixel Watch 4 |
|---|---|---|
| Display size | 1.78 "lead | 1.4 " |
| Always-on display | false | truelead |
| Peak brightnessⓘ | 1000 nits | 3000 nitslead |
Health & Fitness
| Spec | Apple - Watch SE 3 | Google - Pixel Watch 4 |
|---|---|---|
| ECG | false | truelead |
| SpO2 | false | truelead |
| Temperature sensor | false | truelead |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Apple - Watch SE 3 | Google - Pixel Watch 4 |
|---|---|---|
| Battery life | 18 h | 48 hlead |
| GPS | true | true |
| Cellular | true | true |
| NFC | true | true |
| OS | watchOS | WearOSlead |
Frequently asked
Which has longer battery life, Watch SE 3 or Pixel Watch 4?+
Pixel Watch 4 lasts 48h vs 18h.
Do Watch SE 3 or Pixel Watch 4 support ECG?+
Pixel Watch 4 supports ECG; Watch SE 3 does not.
Which has cellular, Watch SE 3 or Pixel Watch 4?+
Both offer cellular variants.
Spec-level deep dives
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