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 and 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 don't 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 60h vs 30h.
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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