Plenty of members wear a ring at night and a watch to train. When two devices report the same day, NOYU has to choose, because averaging them would produce a number neither device ever recorded.
NOYU chooses per category, not per device
The choice is made separately for sleep, workouts and daily activity. There is no single "best device", because devices are good at different things.
By default NOYU ranks devices by what they measure well:
- Sleep: a ring generally wins. It is worn all night, comfortably, with good skin contact.
- Workouts: a watch generally wins, and a ring ranks near the bottom. A ring infers that you exercised from your heart rate. A watch records the session, with GPS, distance and pace. For a workout, that is a different quality of data entirely.
- Daily activity: follows the general ranking.
So a member with an Oura ring and a Garmin watch will usually get sleep from the ring and workouts from the watch, without configuring anything.
Changing the choice
If you have two or more wearables connected, a Data sources section appears in Settings → Connections, with a row each for Sleep, Workouts and Daily activity.
Pick a device for a row and it is pinned for that category, outranking the automatic choice. Pinning is per category, so you can pin sleep to your ring and leave workouts on automatic.
Worth pinning if:
- You have two similar devices and the automatic choice keeps changing week to week. Without a pin, NOYU falls back to whichever device has more data, which can flip when the two are close.
- You know one device is more reliable for you, for instance because you only wear your watch some nights.
- Your workouts are being picked up from a device you do not train with.
One limit worth knowing
A source choice picks the whole record, not individual fields.
You cannot take your step count from one device and your resting heart rate from another. If you pin daily activity to your watch, you get your watch's entire daily record, including any fields where your ring might have been better.
This occasionally bites. A ring worn only at night can report a daily record with a very low step count, and if it outranks your phone for daily activity you will see that low number instead of the phone's. Pinning daily activity to the device you carry fixes it.
Field-level merging is something we would like to do properly and have not built yet.
Duplicate workouts
When two devices record the same session, NOYU keeps one.
Sessions are matched by overlap in time rather than exact timestamps, since two devices rarely start and stop together. If they overlap substantially, they are treated as the same workout and the higher-priority device's copy is kept.
If you see the same run twice, it usually means the two recordings barely overlapped, for example because one device started ten minutes late. Tell us the date and we will look.
Apps that are not the source
Some names appear on a workout as a badge rather than a connection. A Runna session recorded on your Apple Watch reaches NOYU through Apple Health, and NOYU labels it Runna so you know where it came from. The connection is Apple Health; Runna is the origin of the session.
