Samsung - Galaxy Watch 7 (40mm) vs Polar - Vantage V3
Between the Galaxy Watch 7 (40mm) and Vantage V3, the Galaxy Watch 7 (40mm) comes out ahead in peak brightness and weight, while the Vantage V3 wins on battery life and display size. Overall, the Galaxy Watch 7 (40mm) scores 43.8 and the Vantage V3 scores 53.5 on our Mars Score.
Which should you buy?
The Vantage V3 is the clear pick on raw spec strength, leading by 9.7 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 Galaxy Watch 7 (40mm) if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness, weight, cellular.
Pick the Vantage V3 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.
Both ship with comparable ecg, spo2, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the Vantage V3 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
- ▲Peak brightness — 200.00% more. 3000 nits vs 1000 nits.
- ▲Weight — 28.20 g less. 28.8 vs 57.
- ▲Has Cellular.
Why Polar - Vantage V3 wins
- ▲Battery life — 460.00% more. 168 h vs 30 h.
- ▲Display size — 6.11% more. 1.39 " vs 1.31 ".
Spec comparison
Design
| Spec | Samsung - Galaxy Watch 7 (40mm) | Polar - Vantage V3 |
|---|---|---|
| Case size | 40 mm | 47 mmlead |
| Weight | 28.8 glead | 57 g |
| Case material | aluminum | aluminum |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Samsung - Galaxy Watch 7 (40mm) | Polar - Vantage V3 |
|---|---|---|
| Display size | 1.31 " | 1.39 "lead |
| Always-on display | true | true |
| Peak brightnessⓘ | 3000 nitslead | 1000 nits |
Health & Fitness
| Spec | Samsung - Galaxy Watch 7 (40mm) | Polar - Vantage V3 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | truelead | false |
Battery & Connectivity
| Spec | Samsung - Galaxy Watch 7 (40mm) | Polar - Vantage V3 |
|---|---|---|
| Battery life | 30 h | 168 hlead |
| GPS | true | true |
| Cellular | truelead | false |
| NFC | truelead | false |
| OS | WearOS | Polar OSlead |
Frequently asked
Which has longer battery life, Galaxy Watch 7 (40mm) or Vantage V3?+
Vantage V3 lasts 168h vs 30h.
Do Galaxy Watch 7 (40mm) or Vantage V3 support ECG?+
Both support ECG.
Which has cellular, Galaxy Watch 7 (40mm) or Vantage V3?+
Galaxy Watch 7 (40mm) offers a cellular variant; Vantage V3 is Wi-Fi only.
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.