Show Nightscout on a watch
Watch support depends on a named app, watch model and phone—not just the watch brand. Choose the documented connection before buying or changing equipment.
- Apple Watch: use a supported iPhone/watch follower.
- Garmin: this guide names a Nightscout-capable Connect IQ watchface and its URL/token format.
- Fitbit: first check app availability for the exact watch and region.
Verify in order
First confirm fresh source data in Nightscout. Configure the phone/app connection with viewing access, then add the watch display. Compare the newest value and timestamp with the browser, including after the phone locks.
A watch can show a cached number after its connection stops. Its display and alert behavior may differ from the phone’s. Keep the device’s approved monitoring and alarm arrangements; do not assume a complication provides a continuous real-time alarm service.
For other watch platforms, identify the exact app/firmware and follow the developer’s Nightscout instructions. An unavailable app or incompatible watch cannot be repaired by making your Nightscout site public.