Samsung - Galaxy Watch 7 (40mm) vs Samsung - Galaxy Watch Ultra 2
Between the Galaxy Watch 7 (40mm) and Galaxy Watch Ultra 2, the Galaxy Watch 7 (40mm) comes out ahead in weight, while the Galaxy Watch Ultra 2 wins on battery life / display size. Overall, the Galaxy Watch 7 (40mm) scores 43.8 and the Galaxy Watch Ultra 2 scores 50.8 on our Mars Score.
Which should you buy?
The Galaxy Watch Ultra 2 edges ahead on the Mars Score (43.8 vs 50.8), but the 7.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Galaxy Watch 7 (40mm) if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight.
Pick the Galaxy Watch Ultra 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, display size, water resistance.
Both ship with comparable ecg, cellular, spo2, so those specs do not separate the two — focus on the differences below.
Bottom line: the Galaxy Watch Ultra 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - Galaxy Watch 7 (40mm) wins
- ▲Weight — 31.20 g less. 28.8 vs 60.
Why Samsung - Galaxy Watch Ultra 2 wins
- ▲Battery life — 100.00% more. 60 h vs 30 h.
- ▲Display size — 14.50% more. 1.5 " vs 1.31 ".
- ▲Water resistance — 5.00 ATM more. 10 vs 5.
Spec comparison
Design
| Spec | Samsung - Galaxy Watch 7 (40mm) | Samsung - Galaxy Watch Ultra 2 |
|---|---|---|
| Case size | 40 mm | 47 mmlead |
| Weight | 28.8 glead | 60 g |
| Case material | aluminum | titanium |
| Water resistanceⓘ | 5 ATM | 10 ATMlead |
Display
| Spec | Samsung - Galaxy Watch 7 (40mm) | Samsung - Galaxy Watch Ultra 2 |
|---|---|---|
| Display size | 1.31 " | 1.5 "lead |
| Always-on display | true | true |
| Peak brightnessⓘ | 3000 nits | 3000 nits |
Health & Fitness
| Spec | Samsung - Galaxy Watch 7 (40mm) | Samsung - Galaxy Watch Ultra 2 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | true | true |
Battery & Connectivity
| Spec | Samsung - Galaxy Watch 7 (40mm) | Samsung - Galaxy Watch Ultra 2 |
|---|---|---|
| Battery life | 30 h | 60 hlead |
| GPS | true | true |
| Cellular | true | true |
| NFC | true | true |
| OS | WearOS | WearOS |
Frequently asked
Which has longer battery life, Galaxy Watch 7 (40mm) or Galaxy Watch Ultra 2?+
Galaxy Watch Ultra 2 lasts 60 hours vs 30 hours.
Do Galaxy Watch 7 (40mm) or Galaxy Watch Ultra 2 support ECG?+
Both support ECG.
Which has cellular, Galaxy Watch 7 (40mm) or Galaxy Watch Ultra 2?+
Both offer cellular variants.
Spec-level deep dives
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