Smartwatches with the longest battery life
Battery life is the biggest trade-off in a smartwatch: bright always-on screens and many sensors cost power. This ranking sorts the smartwatches in the catalogue by the standard-use battery claim in the manufacturer’s sheet, first figure given. Power-saving modes, which stretch the number a lot, are not counted here.
Right now the top position goes to Garmin Enduro 3 with 90 days. 25 devices ranked
- 1
Garmin Enduro 3smartwatches90 days - 2
Mobvoi TicWatch Pro 5 Endurosmartwatches45 days - 3
Garmin Enduro 4smartwatches36 days - 4
COROS VERTIX 2Ssmartwatches36 days - 5
HONOR Watch 6smartwatches35 days - 6
Garmin fenix 9 Prosmartwatches31 days - 7
Amazfit Balance Ultrasmartwatches30 days - 8
Amazfit Cheetah 2 Ultrasmartwatches30 days - 9
Withings ScanWatch 2smartwatches30 days - 10
Withings ScanWatch Lightsmartwatches30 days - 11
Amazfit T-Rex Ultra 2smartwatches30 days - 12
Suunto Verticalsmartwatches30 days - 13
Garmin fenix 9smartwatches29 days - 14
Amazfit T-Rex 3smartwatches27 days - 15
Amazfit Active Maxsmartwatches25 days - 16
Amazfit T-Rex 3 Prosmartwatches25 days - 17
Amazfit T-Rex Dual Solarsmartwatches25 days - 18
Amazfit Balance 2smartwatches21 days - 19
Amazfit Balance 3smartwatches21 days - 20
Xiaomi Smart Band 10smartwatches21 days - 21
Xiaomi Smart Band 9smartwatches21 days - 22
Huawei Watch GT 6smartwatches21 days - 23
Huawei Watch GT 6 Prosmartwatches21 days - 24
Huawei Watch GT 7smartwatches21 days - 25
Huawei Watch GT 7 Prosmartwatches21 days
What to keep in mind
These are manufacturer claims under controlled conditions, not our measurements. GPS workouts, cellular use and the always-on display shorten them considerably, sometimes by half.
Watches that publish capacity in mAh but no hours, or that give no battery information, are left out of this table. You can still find every available detail on the individual model page.
How the ranking works
Standard battery life claimed by the manufacturer (hours or days). The list sorts devices by a single criterion: Standard battery life claimed by the manufacturer (hours or days). Every value is parsed from the manufacturer-sourced specification stored on each device page.
Frequently asked questions
How is “Smartwatches with the longest battery life” calculated?
The list sorts devices by a single criterion: Standard battery life claimed by the manufacturer (hours or days). Every value is parsed from the manufacturer-sourced specification stored on each device page.
Are these independent test results?
No. PhonesVS does not run its own lab measurements in these lists. The order reflects published spec-sheet figures and says nothing about real-world behaviour, build quality or software.
Why is a device I am looking for missing?
A device appears only if its spec sheet states the figure being ranked. Models that leave it out, or that are not yet in the catalogue, are not listed.
How often is the list updated?
Rankings are computed live from the catalogue, so a new device or a corrected spec changes the order the next time the page is built.