Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Amazfit - Band 7 | WHOOP - 5.0 |
|---|---|---|
| Battery life | 18 days | 14 days |
| Water resistance | 5 ATM | 10 ATM |
Between the Band 7 and 5.0, the Band 7 comes out ahead in battery life, while the 5.0 wins on water resistance. Overall, the Band 7 scores 72.2 and the 5.0 scores 66.6 on our Mars Score.
Which should you buy?
The Band 7 edges ahead on the Mars Score (72.2 vs 66.6), but the 5.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Band 7 if you care most about battery life. The biggest gaps in its favor are battery life. The single most decisive one: Battery life — 28.57% more. 18 days vs 14 days.
Pick the 5.0 if you care most about water resistance. Its strongest claims are water resistance. The single most decisive one: Water resistance — 5.00 ATM more. 10 vs 5.
Both ship with comparable gps, sport modes, spo2, so those specs do not separate the two — focus on the differences below.
Bottom line: the Band 7 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: Amazfit - Band 7 or WHOOP - 5.0?
Amazfit - Band 7 leads the current Mars Score by 5.6 points.The more useful decision is the trade-off behind that result: compare battery life against the way you will actually use the product.
Choose Amazfit - Band 7 if…
Amazfit - Band 7 has the measurable edge on battery days.
Choose WHOOP - 5.0 if…
WHOOP - 5.0 has the measurable edge on water resistance atm.
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 Amazfit - Band 7 wins
- ▲Battery life — 28.57% more. 18 days vs 14 days.
Why WHOOP - 5.0 wins
- ▲Water resistance — 5.00 ATM more. 10 vs 5.
Spec comparison
Fitness
| Spec | Amazfit - Band 7 | WHOOP - 5.0 |
|---|---|---|
| GPS | false | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 120 | 120 |
Battery
| Spec | Amazfit - Band 7 | WHOOP - 5.0 |
|---|---|---|
| Battery lifeⓘ | 18 dayslead | 14 days |
| Water resistanceⓘ | 5 ATM | 10 ATMlead |
Design
| Spec | Amazfit - Band 7 | WHOOP - 5.0 |
|---|---|---|
| Display size | 1.47 "lead | 0 " |
| Weight | 28 g | 21 glead |