Apple - Watch Series 11 (45mm) vs Samsung - Galaxy Watch 7 (40mm)
Between the Watch Series 11 (45mm) and Galaxy Watch 7 (40mm), the Watch Series 11 (45mm) comes out ahead in display size / battery life, while the Galaxy Watch 7 (40mm) wins on weight. Overall, the Watch Series 11 (45mm) scores 60.5 and the Galaxy Watch 7 (40mm) scores 43.8 on our Mars Score.
Which should you buy?
The Watch Series 11 (45mm) is the clear pick on raw spec strength, leading by 16.7 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 Series 11 (45mm) if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are display size, battery life.
Pick the Galaxy Watch 7 (40mm) if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight.
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 11 (45mm) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Apple - Watch Series 11 (45mm) wins
- ▲Display size — 46.56% more. 1.92 " vs 1.31 ".
- ▲Battery life — 20.00% more. 36 h vs 30 h.
Why Samsung - Galaxy Watch 7 (40mm) wins
- ▲Weight — 9.20 g less. 28.8 vs 38.
Spec comparison
Design
| Spec | Apple - Watch Series 11 (45mm) | Samsung - Galaxy Watch 7 (40mm) |
|---|---|---|
| Case size | 45 mmlead | 40 mm |
| Weight | 38 g | 28.8 glead |
| Case material | aluminum | aluminum |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Apple - Watch Series 11 (45mm) | Samsung - Galaxy Watch 7 (40mm) |
|---|---|---|
| Display size | 1.92 "lead | 1.31 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 3000 nits | 3000 nits |
Health & Fitness
| Spec | Apple - Watch Series 11 (45mm) | Samsung - Galaxy Watch 7 (40mm) |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | false | truelead |
Battery & Connectivity
| Spec | Apple - Watch Series 11 (45mm) | Samsung - Galaxy Watch 7 (40mm) |
|---|---|---|
| Battery life | 36 hlead | 30 h |
| GPS | true | true |
| Cellular | true | true |
| NFC | true | true |
| OS | watchOS | WearOSlead |
Frequently asked
Which has longer battery life, Watch Series 11 (45mm) or Galaxy Watch 7 (40mm)?+
Watch Series 11 (45mm) lasts 36 hours vs 30 hours.
Do Watch Series 11 (45mm) or Galaxy Watch 7 (40mm) support ECG?+
Both support ECG.
Which has cellular, Watch Series 11 (45mm) or Galaxy Watch 7 (40mm)?+
Both offer cellular variants.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.