Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Google - Fitbit Charge 6 | Xiaomi - Smart Band 10 |
|---|---|---|
| Battery life | 7 days | 21 days |
| Sport modes | 40 | 150 |
| GPS | true | false |
Between the Fitbit Charge 6 and Smart Band 10, the Fitbit Charge 6 comes out ahead in gps, while the Smart Band 10 wins on battery life / sport modes. Overall, the Fitbit Charge 6 scores 77.4 and the Smart Band 10 scores 76.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (77.4 vs 76.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Fitbit Charge 6 if you care most about gps. The biggest gaps in its favor are gps. The single most decisive one: Has GPS.
Pick the Smart Band 10 if you care most about battery life / sport modes. Its strongest claims are battery life, sport modes. The single most decisive one: Battery life — 200.00% more. 21 days vs 7 days.
Both ship with comparable spo2, water resistance, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Google - Fitbit Charge 6 or Xiaomi - Smart Band 10?
Google - Fitbit Charge 6 leads the current Mars Score by 1.3 points.The more useful decision is the trade-off behind that result: compare battery life, gps against the way you will actually use the product.
Choose Google - Fitbit Charge 6 if…
Google - Fitbit Charge 6 has the measurable edge on has gps.
Choose Xiaomi - Smart Band 10 if…
Xiaomi - Smart Band 10 has the measurable edge on battery days, sport modes.
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 Google - Fitbit Charge 6 wins
- ▲Has GPS.
Why Xiaomi - Smart Band 10 wins
- ▲Battery life — 200.00% more. 21 days vs 7 days.
- ▲Sport modes — 110.00 more. 150 vs 40.
Spec comparison
Fitness
| Spec | Google - Fitbit Charge 6 | Xiaomi - Smart Band 10 |
|---|---|---|
| Form factor | Band | Band |
| GPS | truelead | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 40 | 150lead |
Battery
| Spec | Google - Fitbit Charge 6 | Xiaomi - Smart Band 10 |
|---|---|---|
| Battery lifeⓘ | 7 days | 21 dayslead |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Design
| Spec | Google - Fitbit Charge 6 | Xiaomi - Smart Band 10 |
|---|---|---|
| Display size | 1.04 " | 1.72 "lead |
| Weight | 37 g | 16 glead |