Checklist

Checklist to prepare a fair one-hour battery test

An Idle Drain Test compares two quiet hours, one before and one after a change. Run through this list first so the two hours are as alike as possible and the result means something.

1 min readWritten from play.google.com✓ Approved by the founder · 10 Nov 2026
On this page
  1. The checklist
  2. Questions

The checklist

  • Write down the one setting or habit you want to test. Only one per test.
  • Make sure the watch is off the charger and has plenty of charge left for two hours.
  • Pick a time when you will barely touch the watch, such as a meeting or reading time.
  • Keep the conditions the same for both hours: same place, same connection, no workout in between.
  • Mute anything that might suddenly flood the watch with notifications during the test, or test on a calmer day.
  • Do not restart or update the watch between the two hours.
  • If the change is a display or notification tweak, take it from the Everyday Lite checklist so you can undo it later.
  • After both hours, read the drain rates, the size of the difference and the confidence together, not just one number.
  • Treat an inconclusive result as "not proven" and repeat on another day before deciding.
  • If the change did not help, switch it back with the restoration checklist.

Questions

Can I see my past charging sessions?

Yes. In the phone companion you can look through charging periods together with scan and test results.

Source: play.google.com
Can I undo the Everyday Lite changes?

Yes. There is a restoration checklist for switching each change back when you want.

Source: play.google.com
How far back does the battery timeline go?

The launch notes describe a 7-day timeline, alongside a battery Tile and a runtime complication.

Source: play.google.com
How does the phone get the watch data?

The optional companion app syncs with your paired watch through Wear OS Data Layer, and it shows when data was last synced.

Source: play.google.com
Does the phone app measure the battery too?

No. The watch does the measuring; the phone app shows the results on a bigger screen and helps you read them.

Source: play.google.com
Can I see when my watch drained faster than usual?

Yes. It marks periods of unusually fast drain compared with your own watch's normal baseline.

Source: play.google.com

Test why your Wear OS watch battery drains so fast