Between the Pixel Watch 4 and ScanWatch 2, the Pixel Watch 4 comes out ahead in display size and weight, while the ScanWatch 2 wins on battery life. Overall, the Pixel Watch 4 scores 47.4 and the ScanWatch 2 scores 72.6 on our Mars Score.
Which should you buy?
The ScanWatch 2 is the clear pick on raw spec strength, leading by 25.2 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 Pixel Watch 4 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, cellular, among others.
Pick the ScanWatch 2 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.
Both ship with comparable ecg, spo2, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the ScanWatch 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Google - Pixel Watch 4 wins
- ▲Display size — 122.22% more. 1.4 " vs 0.63 ".
- ▲Weight — 22.00 g less. 37 vs 59.
- ▲Has Cellular.
- ▲Peak brightness: 3000 nits vs 0 nits.
Why Withings - ScanWatch 2 wins
- ▲Battery life — 1400.00% more. 720 h vs 48 h.
Spec comparison
Design
| Spec | Google - Pixel Watch 4 | Withings - ScanWatch 2 |
|---|---|---|
| Case size | 45 mmlead | 42 mm |
| Weight | 37 glead | 59 g |
| Case material | aluminum | stainless steel |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Google - Pixel Watch 4 | Withings - ScanWatch 2 |
|---|---|---|
| Display size | 1.4 "lead | 0.63 " |
| Always-on display | truelead | false |
| Peak brightnessⓘ | 3000 nitslead | 0 nits |
Health & Fitness
| Spec | Google - Pixel Watch 4 | Withings - ScanWatch 2 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Google - Pixel Watch 4 | Withings - ScanWatch 2 |
|---|---|---|
| Battery life | 48 h | 720 hlead |
| GPS | truelead | false |
| Cellular | truelead | false |
| NFC | truelead | false |
| OS | WearOS | Withings OSlead |
Frequently asked
Which has longer battery life, Pixel Watch 4 or ScanWatch 2?+
ScanWatch 2 lasts 720h vs 48h.
Do Pixel Watch 4 or ScanWatch 2 support ECG?+
Both support ECG.
Which has cellular, Pixel Watch 4 or ScanWatch 2?+
Pixel Watch 4 offers a cellular variant; ScanWatch 2 is Wi-Fi only.
Spec-level deep dives
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