Apple - Watch Series 10 (46mm) vs Google - Pixel Watch 3 (45mm)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - Watch Series 10 (46mm) | Google - Pixel Watch 3 (45mm) |
|---|---|---|
| Battery life | 18 h | 36 h |
| Display size | 2.04 " | 1.4 " |
| Weight | 36.4 g | 37 g |
Between the Watch Series 10 (46mm) and Pixel Watch 3 (45mm), the Watch Series 10 (46mm) comes out ahead in display size / weight, while the Pixel Watch 3 (45mm) wins on battery life. Overall, the Watch Series 10 (46mm) scores 76.9 and the Pixel Watch 3 (45mm) scores 69.5 on our Mars Score.
Which should you buy?
The Watch Series 10 (46mm) edges ahead on the Mars Score (76.9 vs 69.5), but the 7.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Watch Series 10 (46mm) 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. The single most decisive one: Display size — 45.71% more. 2.04 " vs 1.4 ".
Pick the Pixel Watch 3 (45mm) 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 battery life. The single most decisive one: Battery life — 100.00% more. 36 h vs 18 h.
Both ship with comparable ecg, cellular, spo2, so those specs do not separate the two — focus on the differences below.
Bottom line: the Watch Series 10 (46mm) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Apple - Watch Series 10 (46mm) or Google - Pixel Watch 3 (45mm)?
Apple - Watch Series 10 (46mm) leads the current Mars Score by 7.4 points.The more useful decision is the trade-off behind that result: compare display size, battery life against the way you will actually use the product.
Choose Apple - Watch Series 10 (46mm) if…
Apple - Watch Series 10 (46mm) has the measurable edge on display size in, weight g.
Choose Google - Pixel Watch 3 (45mm) if…
Google - Pixel Watch 3 (45mm) has the measurable edge on battery life h.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Apple - Watch Series 10 (46mm) wins
- ▲Display size — 45.71% more. 2.04 " vs 1.4 ".
- ▲Weight — 0.60 g less. 36.4 vs 37.
Why Google - Pixel Watch 3 (45mm) wins
- ▲Battery life — 100.00% more. 36 h vs 18 h.
Spec comparison
Design
| Spec | Apple - Watch Series 10 (46mm) | Google - Pixel Watch 3 (45mm) |
|---|---|---|
| Case size | 46 mmlead | 45 mm |
| Weight | 36.4 glead | 37 g |
| Case material | aluminum | aluminum |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Apple - Watch Series 10 (46mm) | Google - Pixel Watch 3 (45mm) |
|---|---|---|
| Display size | 2.04 "lead | 1.4 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 2000 nits | 2000 nits |
Health & Fitness
| Spec | Apple - Watch Series 10 (46mm) | Google - Pixel Watch 3 (45mm) |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Apple - Watch Series 10 (46mm) | Google - Pixel Watch 3 (45mm) |
|---|---|---|
| Battery lifeⓘ | 18 h | 36 hlead |
| GPS | true | true |
| Cellular | true | true |
| NFC | true | true |
| OS | watchOS | WearOSlead |
Frequently asked
Which has longer battery life, Watch Series 10 (46mm) or Pixel Watch 3 (45mm)?+
Pixel Watch 3 (45mm) lasts 36 hours vs 18 hours.
Do Watch Series 10 (46mm) or Pixel Watch 3 (45mm) support ECG?+
Both support ECG.
Which has cellular, Watch Series 10 (46mm) or Pixel Watch 3 (45mm)?+
Both offer cellular variants.