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235 Stops Mapping in middle of Run

Twice in last three days 235 has stopped mapping in middle of run and appears to just guess the distance. Friday I ran a measured 16 and it gave me 14+ but only mapped a portion of that. Sunday I ran 17 and change I think and it gave me over 18 but only mapped four miles. This has happened a couple times in the last fe years but twice this week and a third time ten days ago is making my GPS a very expensive bracelet. Anyone have this happen to them of have a fix?

  • Without GPS it uses accelerometer to guess a distance.

    The watch doesn't show GPS status by default during an activity, so if you want to be sure it's recording a path, then you can download Connect IQ data field for that.

    But lost of GPS happen very rarely, some problem can be with dark forest or high buildings, but usually those only make short anomalies on a path.