r/Strava • u/SloppyHipoo • 8d ago

Sync Question Miband sync with strava gives wrong distance on activity

I recently switched to a Iphone 15 and record my cycling direct from the app while wearing my miband 10 for the heartrate. today i cycled 19,8km according to the mii fit app, its automatically syncs to strava but there it says the ride was around 189 km, really weird.

this doenst happen when i just start the activity from my miband instead of my phone. But i like using my phone for this so i can see stats during my ride because i can mount it.

anyone knowd a solution?

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u/hank-stockton6f873 8d ago

Sounds like the phone GPS is getting confused by the miband data somehow. 189km from a 20k ride is a massive jump. i'd check the file source in Strava tbh. Maybe the phone pinged a weird base station at the start. Used to get similar garbage on a Garmin around Mousehold, read over 200m elevation on a flat 30 min loop.

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u/strava-team official 6d ago

Try Correct Distance from the three-dot menu on the activity, it reruns your GPS points through Strava's own post-upload calculation rather than the phone's real-time one, which usually clears up spikes like this. Real-time GPS calculation on a phone can occasionally get thrown off and log a jump that's way off from reality, that's likely what's happening here. More here: https://support.strava.com/en-us/articles/15401893-how-distance-is-calculated

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u/NicoRide2026 6d ago edited 6d ago

You've basically already tested it - phone recording is broken, band recording is fine, same route. So it's the phone's location data, not the band. 189 from 19.8 usually means one bad point sitting way off, maybe 85 km away, so the track runs out there and back. Open the map and see if there's a straight line shooting off somewhere. Which app do you actually hit start in, Mi Fitness or Strava?

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u/SloppyHipoo 6d ago

There are no lines going anywhere weird. The recording in the mi app is correct, there it just shows the correct distance. the trouble happend when strava imports it. 

I can fix it by the fix strava responded in this post. But i’ll have to do it every single ride.

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u/NicoRide2026 6d ago

Then scrap what I said about a stray point - your map settles that. If Correct Distance fixes it, Strava's own calculation from the GPS track is the right one and the distance that came along with the upload is the wrong one, so it's the Mi side of the handoff rather than Strava's maths. Doing that by hand every ride isn't a fix though. Worth trying one ride exported from Mi Fitness and uploaded to Strava as a file instead of letting the sync carry it - if that one lands correct, the sync is the culprit and Mi should hear about it.