Record with a RaceBox
Last updated Sep 25, 2026
A RaceBox (Mini, Mini S, or Micro) gives you much higher-rate GPS than a phone, which means sharper deltas, cleaner corner analysis, and a more accurate racing line.
Steps
- Turn the RaceBox on and keep it near your phone.
- In LapperSnapper, open the Record tab and choose RaceBox as the source.
- Tap Scan for RaceBox. Nearby devices appear in a list — tap yours to connect.
- Once connected, tap Start recording and drive your session. The live HUD and Drive mode work exactly as they do with phone GPS.
- Tap Stop when you're done — the session saves to Sessions and opens ready to analyze.
Importing RaceBox recordings
A Mini S or Micro stores recordings on the device. Once it's connected (and you're not recording), tap Import recorded laps: the app reads the device's memory, lists what it finds, and you pick which recordings to import. If the RaceBox has a security code set, you'll be asked for it — too many wrong codes can make it refuse connections until it's power-cycled.
You can also bring in recordings as files: open Import → Choose a file and pick a .ubx file. Either way, a Track conditions sheet follows — see Tag the track state after an import.
Tips
- Bluetooth allows one connection at a time — close other apps that may be holding the RaceBox.
- Mount the RaceBox with a clear view of the sky, as flat as possible.
- Keep LapperSnapper on screen while recording with a RaceBox — switching to another app or locking the phone stops and saves the recording, on iPhone and Android alike.
- If recording won't start while the app is fetching the device's stored history, let the download finish first.
Having trouble? See My RaceBox won't connect.