Oura Ring

Oura Ring Battery Dashboard

Tracking the ring's charge over time - how fast it drains through a day of wear, and how it climbs back up on the charger.

Current battery
42%
Charging from 42% · Power BankAug 8, 2026, 4:06 AM
Average level
42%
Highest
76%
Lowest
10%
Readings
20
Avg daily drain
15.5%/day
Estimated charge time
~40 minto 100%

Battery over time

The charge/drain sawtooth, plotted at each reading's actual time - draining through the day, jumping back up on the charger. Hover any point for details.

0255075100Aug 3Aug 4Aug 5Aug 6Aug 7Aug 8

Charge & drain rate

Change from one reading to the next. Green bars are charges, red bars are drains.

+29+150-14-29Aug 3Aug 4Aug 6Aug 8
Typical drain: 15.5% per dayTypical top-up: +16% per charge (2 sessions)

Battery drain & estimated life

How fast the ring loses charge per hour of wear, over two windows, plus how long a full 100% charge lasts. Measured across draining intervals only, so charges don't skew it.

Recent trailing 7-day average
0.65%/hour

15.5%/day · full charge lasts 6 days 11 hours.

Long-term baseline
0.65%/hour

15.5%/day · full charge lasts 6 days 11 hours.

Recent trailing 14-day average
0.65%/hour

15.5%/day · full charge lasts 6 days 11 hours.

Estimated battery life
6 days 11 hours

A full charge should last about 6.4 days (~155 hours) at the trailing 7-day rate.

The baseline pools every reading to track overall behavior and long-term degradation, while the recent trailing average captures current battery behavior (like overnight SpO2 drains). Baseline and recent windows are identical for now - they will diverge once there is more than ~7-14 days of history.

Battery degradation over time

Inferred from how full-charge runtime shrinks as the battery ages, since the Oura API doesn't expose raw battery capacity.

Not enough data yet - need more readings over time

Degradation compares the first 30 days of readings against the most recent 30 days. So far there are about 4 days logged - keep logging and this will fill in.

Readings by day

Grouped by calendar day, newest first. Expand a day to see each timestamped reading.

  • TimeBatteryChangeNotes
    3:39 AM10%-6%-
    3:43 AM10%0%Charging (Power Bank) ·Charging start event. Charging from 10% powered by a battery bank / power bank.
    3:49 AM13%+3%Charging (Power Bank) ·Charging reading. 13% while charging via power bank (up from 10% charge start at 11:43 PM).
    4:06 AM42%+29%Charging (Power Bank) ·Charging reading. 42% via power bank, up from 10% at charge start (~83%/hour so far this cycle).
  • Aug 5, 202655%-2%