this post was submitted on 21 Apr 2024
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Privacy
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What kind of fitness tracker?
Running? Opentracks.
Already using opentracks but my smartphone is really not great for recording the gps track and it can't sense my heart rate I'm afraid.
I've used a Bluetooth heart monitor worn around the chest (was around 20 $ ten years ago) to measure the heart rate before. It works well with open tracks and should be more reliable compared to a device worn around the wrist. I am not sure the gps tracker on a watch works be better than the one on your phone anyways. It might be a problem with your phone killing background apps like opentracks. Check https://dontkillmyapp.com before pulling the plug on a new device.
Thanks! Just ordered a chest strap heart monitor.
Opentracks was set to record only once per 10m apparently, so no wonder it wasn't accurate :D