I've upgraded from a FR225. The pace indicator whilst running with the FR225 was always pretty accurate, however, I have found the FR245 to be widely inconsistent.
For example, it can lurch from 4:30 min/km to 6:10 min/km in the space of about 30 seconds, when there has been no appreciable change in pace. Is there anything to be done to improve this reading, as this is the main indicator that I refer to whilst running? Many thanks