Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Amazfit - Band 7 | Google - Fitbit Luxe |
|---|---|---|
| Battery life | 18 days | 5 days |
| Sport modes | 120 | 20 |
Between the Band 7 and Fitbit Luxe, the Band 7 comes out ahead in battery life / sport modes, while the Fitbit Luxe wins on several specs. Overall, the Band 7 scores 72.2 and the Fitbit Luxe scores 63.2 on our Mars Score.
Which should you buy?
The Band 7 is the clear pick on raw spec strength, leading by 9.0 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 Band 7 if you care most about battery life / sport modes. The biggest gaps in its favor are battery life, sport modes. The single most decisive one: Battery life — 260.00% more. 18 days vs 5 days.
The Fitbit Luxe similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable gps, spo2, water resistance, 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 Google - Fitbit Luxe?
Amazfit - Band 7 leads the current Mars Score by 9.0 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, sport modes.
Choose Google - Fitbit Luxe if…
Google - Fitbit Luxe does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 — 260.00% more. 18 days vs 5 days.
- ▲Sport modes — 100.00 more. 120 vs 20.
Why Google - Fitbit Luxe wins
- No decisive advantages.
Spec comparison
Fitness
| Spec | Amazfit - Band 7 | Google - Fitbit Luxe |
|---|---|---|
| Form factor | Band | Band |
| GPS | false | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 120lead | 20 |
Battery
| Spec | Amazfit - Band 7 | Google - Fitbit Luxe |
|---|---|---|
| Battery lifeⓘ | 18 dayslead | 5 days |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Design
| Spec | Amazfit - Band 7 | Google - Fitbit Luxe |
|---|---|---|
| Display size | 1.47 "lead | 0.76 " |
| Weight | 28 g | 23 glead |