Fitbit watch battery life: 10 models ranked
The Fitbit Ace LTE lasts longest of the 10 Fitbit watches in our data, at 16 days. The typical Fitbit is quoted at 5.5 days, against 10 days for the typical smartwatch released since 2022.
Every Fitbit watch ranked by battery life
Showing 10 of 10 Fitbit models with published battery figures.
| # | Model | Everyday use | GPS tracking | Power save | Capacity | Overall | Links |
|---|---|---|---|---|---|---|---|
| 1st |  Ace LTEAce · 2024 | 16days | N/A | N/A | 328 mAh | 127th | |
| 2nd |  SenseSense · 2020 | 6days | 12hours | N/A | 266 mAh | 567th | |
| 3rd |  Versa 3Versa · 2020 | 6days | 12hours | N/A | — | 568th | |
| 4th |  Sense 2Sense · 2022 | 6days | 5hours | N/A | — | 569th | |
| 5th |  Versa 4Versa · 2022 | 6days | N/A | N/A | — | 571st | |
| 6th |  IonicIonic · 2017 | 5days | 10hours | N/A | — | 584th | |
| 7th |  BlazeBlaze | 5days | N/A | N/A | — | 626th | |
| 8th |  Versa 2Versa · 2019 | 4days | N/A | N/A | — | 653rd | |
| 9th |  Versa LiteVersa · 2019 | 4days | N/A | N/A | — | 654th | |
| 10th |  VersaVersa · 2018 | 4days | N/A | N/A | — | 657th |
Sorted by everyday battery; sort any column. Figures are the makers' own claims as held in our data, each measured under its own usage profile, not our tests. “Overall” is each model's place among all 895 rated smartwatches.
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Best Fitbit picks for battery
Fitbit battery life, ranked
The extremes of the range on each figure we hold for Fitbit. Every number below is the manufacturer's own rating, not a measured result.
Longest-lasting Fitbit watches
Most days per charge in everyday use
Best Fitbit watches for GPS endurance
Most hours of continuous tracking
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Fitbit battery in numbers
- Longest
- 16d
- Ace LTE
- Typical Fitbit, all years
- 5.5d
- Typical smartwatch since 2022: 10d
- 7 days or more
- 10%
- 1 of 10 models
- Case sizes
- 39–42 mm
- 10 of 10 with a width in our data
- Newest in our data
- 2024
- Ace LTE 16d
- Longest with GPS
- 12h
- Versa 3
- Best overall
- 127th
- Of 895 rated smartwatches, all years
What the numbers show
The typical Fitbit watch in our data is quoted at 5.5 days, shorter than the 10 days of the typical smartwatch released since 2022.
The longest-lasting Fitbit model sits in the top 14% of the 895 rated smartwatches in our data, across all years.
Across the range, the typical AMOLED model is quoted at 6 days and the typical LCD model at 4.5 days.
Between 2017 and 2024, the newer half of the range lasts longer than the older half: a typical 6 days against 4 days.
Of the 10 models, four share one figure, 6 days, so pick between them on size, screen or GPS rather than battery.
With GPS on, Fitbit watches in our data run from 5 hours (Sense 2) to 12 hours (Versa 3).
Fitbit battery life FAQ
Which Fitbit watch has the longest battery life?
The Ace LTE, at 16 days in everyday use — the longest of the 10 Fitbit models in our data. The typical Fitbit sits at 6 days, so it is well clear of the rest of the range.
Which Fitbit watch lasts longest with GPS on?
The Sense, rated for 12 hours of continuous tracking. GPS runtime is quoted separately from everyday runtime and the two rank differently, so a model that leads on days per charge is not automatically the one to take to a long event.
Compiled by WatchFitTool from the catalogue · ranking rebuilt 2026-11-06