Review on 🚴 POSMA DB1 BLE4.0 Cycling Computer Speedometer Odometer with GPS Smartphone Integration for iPhone and Android (Option to Bundle with BHR20 Heart Rate Monitor and BCB20 Speed/Cadence Sensor) by Will Powers

It's really hard to choose. It does its job well once you understand how to work with it. I recommend contacting the supplier for a PDF with full instructions. It works well alone or with any application you want to use. The downside is that when the battery dies, you have to reset the bike settings. It does store your workout files, though, which is a bit odd, but thankful for that. I have used other bike computers and this one is definitely worth the price. I would give 5 stars if it had a much better starting guide and didn't have to re-enter the bike information when the dough dies. But it's also worth it in combination with the app for GPS functions.