Why Is My Sleep Counted Once When Two Devices Recorded It?
How Kaizora counts a night, a walk, or a meal that two services or devices both recorded, so a total isn't doubled.
Updated
Because it happened once. When a watch and a ring both record your night, or your phone and your watch both count the same walk, adding them up would double it. So Kaizora counts each thing once, and keeps every copy.
Totals: the Largest Source Counts
For a metric that adds up, such as steps, time asleep, or exercise time, each day’s total counts:
- everything you logged yourself, plus
- the one imported source with the largest total, and within it, the device with the largest total.
If your watch counted 9,000 steps and your phone 7,500 of the same steps, your day is 9,000, not 16,500.
Sleep: One Recording per Sleep
Each sleep’s total sleep time, efficiency, onset latency, and time awake come from the one recording, a source and its device, with the most of that sleep. A ratio such as sleep efficiency never mixes two trackers’ numbers.
Averages Count Every Copy
For a metric that’s averaged, such as weight or heart rate, every reading counts, from every source. Two services’ copies of the same weigh-in both go into an average; since they’re the same number, the average doesn’t move.
Apple Health and Direct Imports
Many apps write to Apple Health too. If you import Withings or Cronometer directly, their copies in your Apple Health export are skipped, so their readings come in once.
Both Copies Are Kept
Nothing is merged or thrown away: each source’s entries stay as that source has them. To see them side by side, break a metric’s chart down by Source or Device. See Change a Chart’s Range, Grouping, and Breakdown.
A value you typed in and the same value imported are both kept, and both count.