Does my Delvfire use mobile data?

Your Delvfire does not directly use your mobile's data. However, the VeryFitPro app that your tracker is paired uses small amounts of data for loading maps when a GPS enabled sports mode is started, or if you've setup cloud backup for your activity data and have initiated a sync whilst not connected to WiFi.

Disable Mobile Data

You can stop the VeryFitPro app from using mobile data altogether by doing the following:

Apple

Settings > VeryFitPro > Mobile Data > Disable

Android

Settings > Data Usage > VeryFitPro > Restrict Background Data > Enable