Samsung - Galaxy Watch 7 (40mm) vs Garmin - vívoactive 5
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy Watch 7 (40mm) | Garmin - vívoactive 5 |
|---|---|---|
| Battery life | 30 h | 264 h |
| Peak brightness | 3000 nits | 1000 nits |
| Display size | 1.31 " | 1.2 " |
| Weight | 28.8 g | 26 g |
| ECG | true | false |
| Cellular | true | false |
Between the Galaxy Watch 7 (40mm) and vívoactive 5, the Galaxy Watch 7 (40mm) comes out ahead in peak brightness / display size, while the vívoactive 5 wins on battery life / weight. Overall, the Galaxy Watch 7 (40mm) scores 69.6 and the vívoactive 5 scores 55.7 on our Mars Score.
Which should you buy?
The Galaxy Watch 7 (40mm) is the clear pick on raw spec strength, leading by 13.9 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, display size, ecg, among others. The single most decisive one: Peak brightness — 200.00% more. 3000 nits vs 1000 nits.
Pick the vívoactive 5 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, weight. The single most decisive one: Battery life — 780.00% more. 264 h vs 30 h.
Both ship with comparable spo2, water resistance, so those specs do not separate the two — focus on the differences below.
Bottom line: the Galaxy Watch 7 (40mm) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Samsung - Galaxy Watch 7 (40mm) or Garmin - vívoactive 5?
Samsung - Galaxy Watch 7 (40mm) leads the current Mars Score by 13.9 points.The more useful decision is the trade-off behind that result: compare display size, battery life against the way you will actually use the product.
Choose Samsung - Galaxy Watch 7 (40mm) if…
Samsung - Galaxy Watch 7 (40mm) has the measurable edge on peak brightness nits, display size in, has ecg.
Choose Garmin - vívoactive 5 if…
Garmin - vívoactive 5 has the measurable edge on battery life h, weight g.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Samsung - Galaxy Watch 7 (40mm) wins
- ▲Peak brightness — 200.00% more. 3000 nits vs 1000 nits.
- ▲Display size — 9.17% more. 1.31 " vs 1.2 ".
- ▲Has ECG.
- ▲Has Cellular.
Why Garmin - vívoactive 5 wins
- ▲Battery life — 780.00% more. 264 h vs 30 h.
- ▲Weight — 2.80 g less. 26 vs 28.8.
Spec comparison
Design
| Spec | Samsung - Galaxy Watch 7 (40mm) | Garmin - vívoactive 5 |
|---|---|---|
| Case size | 40 mm | 42 mmlead |
| Weight | 28.8 g | 26 glead |
| Case material | aluminum | polymer |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Samsung - Galaxy Watch 7 (40mm) | Garmin - vívoactive 5 |
|---|---|---|
| Display size | 1.31 "lead | 1.2 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 3000 nitslead | 1000 nits |
Health & Fitness
| Spec | Samsung - Galaxy Watch 7 (40mm) | Garmin - vívoactive 5 |
|---|---|---|
| ECG | truelead | false |
| SpO2 | true | true |
| Temperature sensor | truelead | false |
| Sleep tracking | true | true |
| Blood pressure | truelead | false |
Battery & Connectivity
| Spec | Samsung - Galaxy Watch 7 (40mm) | Garmin - vívoactive 5 |
|---|---|---|
| Battery lifeⓘ | 30 h | 264 hlead |
| GPS | true | true |
| Cellular | truelead | false |
| NFC | true | true |
| OS | WearOS | Garmin OSlead |
Frequently asked
Which has longer battery life, Galaxy Watch 7 (40mm) or vívoactive 5?+
vívoactive 5 lasts 264 hours vs 30 hours.
Do Galaxy Watch 7 (40mm) or vívoactive 5 support ECG?+
Galaxy Watch 7 (40mm) supports ECG; vívoactive 5 does not.
Which has cellular, Galaxy Watch 7 (40mm) or vívoactive 5?+
Galaxy Watch 7 (40mm) offers a cellular variant; vívoactive 5 is Wi-Fi only.