Learn why your data may be missing or showing gaps and practical tips to help prevent gaps and keep your data tracking consistent.
Why the app may show data gaps
Data gaps appear when your NOWATCH wasn’t able to collect or sync data during certain periods. This can happen for several reasons:
The watch wasn’t worn during that time
Metrics can only be recorded when the device is on your wrist and the sensors are in contact with your skin.
There's no way to recover data if you weren't wearing the watch at that time.
What you can do
- Wear the watch during the day to capture stress-and heart rate–related metrics, steps, and more.
- Wear the watch overnight to ensure your sleep data is recorded.
The watch recorded low-quality data
Sometimes data gaps appear because the data collected wasn’t reliable enough to be processed. NOWATCH prioritizes accuracy, so low-quality data may be excluded instead of shown.
This can happen if the watch doesn’t have consistent skin contact, is worn too loosely, is positioned incorrectly, or if there’s excessive movement.
What you can do
Wear the watch snugly above your wrist bone. Learn more tips on how to wear the watch correctly and check out this video for more guidance.
The app wasn’t opened for an extended period
NOWATCH can store data for up to 24 hours. If the app isn’t opened within that timeframe, older unsynced data may be overwritten.
What you can do
Always ensure you open the app at least once per day and allow data syncing to complete so you don't see any data gaps. Learn more about data syncing in this article.
The device battery was low or fully drained
If the battery runs out, the watch cannot collect or store any data.
What you can do
Make sure your watch always has enough battery. We recommend charging it when it reaches around 20% to avoid a full drain. Before going to sleep, ensure the battery is above 30% to reduce the risk of it running out overnight.
The sensors do not light up while wearing the watch
If the sensors on the back of your watch are not active while you’re wearing it, no data will be recorded during that time.
What you can do
Always check that your sensors' LED lights are lighting up when wearing the watch on your wrist. Are they off? Check out this article to fix the issue.
A reboot or factory reset was performed
Any data that wasn't synced from the watch to the phone before the reboot or reset will be permanently lost.
What you can do
Before performing a reboot or a factory reset, open the NOWATCH app to allow syncing to complete. Switching phones? Learn more about what to expect with your data in this article.
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