Google - Fitbit Charge 6 vs Google - Fitbit Inspire 3
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Google - Fitbit Charge 6 | Google - Fitbit Inspire 3 |
|---|---|---|
| Battery life | 7 days | 10 days |
| Sport modes | 40 | 21 |
| GPS | true | false |
Between the Fitbit Charge 6 and Fitbit Inspire 3, the Fitbit Charge 6 comes out ahead in sport modes / gps, while the Fitbit Inspire 3 wins on battery life. Overall, the Fitbit Charge 6 scores 77.4 and the Fitbit Inspire 3 scores 66.4 on our Mars Score.
Which should you buy?
The Fitbit Charge 6 is the clear pick on raw spec strength, leading by 11.0 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 Fitbit Charge 6 if you care most about sport modes / gps. The biggest gaps in its favor are sport modes, gps. The single most decisive one: Sport modes — 19.00 more. 40 vs 21.
Pick the Fitbit Inspire 3 if you care most about battery life. Its strongest claims are battery life. The single most decisive one: Battery life — 42.86% more. 10 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: the Fitbit Charge 6 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: Google - Fitbit Charge 6 or Google - Fitbit Inspire 3?
Google - Fitbit Charge 6 leads the current Mars Score by 11.0 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 sport modes, has gps.
Choose Google - Fitbit Inspire 3 if…
Google - Fitbit Inspire 3 has the measurable edge on battery days.
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
- ▲Sport modes — 19.00 more. 40 vs 21.
- ▲Has GPS.
Why Google - Fitbit Inspire 3 wins
- ▲Battery life — 42.86% more. 10 days vs 7 days.
Spec comparison
Fitness
| Spec | Google - Fitbit Charge 6 | Google - Fitbit Inspire 3 |
|---|---|---|
| Form factor | Band | Band |
| GPS | truelead | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 40lead | 21 |
Battery
| Spec | Google - Fitbit Charge 6 | Google - Fitbit Inspire 3 |
|---|---|---|
| Battery lifeⓘ | 7 days | 10 dayslead |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Design
| Spec | Google - Fitbit Charge 6 | Google - Fitbit Inspire 3 |
|---|---|---|
| Display size | 1.04 "lead | 0.74 " |
| Weight | 37 g | 21 glead |