@MartinBooth - I’ve read that there is a problem with bluetooth when connecting your Fitbit device to a Huawei phone. Your version is listed as compatible but since it is experiencing random problems, you may want to check this info (below) I found while searching the Help Docs. It’s not for your phone, per say, but for a similar one and is probably worth a try.
Searching the Community, I found a couple postings that may help. Here is one. This thread proved helpful to another Huawei P20 phone.
Please let us know if you are able to resolve this issue. Other posters will want to know.
P.S. A good first step is always to check if your phone’s OS, the Fitbit app and the Fitbit device are all up to date.
How do I use the Fitbit app on my Huawei P20 Lite phone?
To use the Fitbit app on your Huawei P20 Lite phone, verify the following settings:
- On your phone, open the Settings app > Apps and notifications > Apps.
- Tap Fitbit > Battery.
- Turn off the Power-intensive prompt option.
- Tap Launch.
- Turn off the Manage automatically option, and turn on the Auto-launch, Secondary launch, and Run in background options.
- Tap OK
