Battery · measured, not promised
Livebib broadcast live for 2 hours and 54 minutes. The battery went from 93% to 78%, with GPS on the whole way and the phone in a pocket. On real runs with Android, the median is 6.0% an hour for the whole phone. That is enough for about 16 hours live on one charge.
Worked out from the median run on Android, 6.0% an hour for the whole phone. The row marked measured is a real race, not a calculation.
Anything longer than about 16 hours needs a power bank or a top-up on the way. Crew see the battery and how fast it is falling, live, and get a warning before it runs out.
Every run from the last 90 days where the app broadcast for at least 45 minutes on battery. Charging and gaps are left out. The bar covers the middle half of the runs, and the line is the median.
Not enough runs yet for a figure. One appears at 5 runs.
The figures above are for the whole phone. The phone’s own system counts what each app is responsible for.
An evening run with Livebib in the background. Android itself counts the app’s share of the battery.
< 1%
for 1 hr 28 min in the background. The same day, Photos used 6% and Reddit 3%.
Source: Settings › Battery, Android, October 13, 2026
Pixel phones measure the power going to the GPS, the processor and the radio separately. The test runs Livebib, no app at all and an ordinary training app for an hour each, on the same phone.
Not measured yet
Livebib’s own cost, and the comparison. Published once the test has run.
Method: Perfetto power rails (ODPM), Pixel, fixed settings
None of this needs the runner to set anything up.
When the phone lies still, the GPS slows right down and positions go out only every 90 seconds. At an aid station or a drinks table, Livebib costs almost nothing.
Positions are collected and sent together in a single call. The radio rests in between, and the radio is what draws the power.
The phone that broadcasts shows no live activity and never wakes the screen. All of the battery goes to the broadcast.