I purchased a Bryton Rider 50 in December. I have noticed that it records the amount of climbing incorrectly. When compared to a Garmin and Polar on one particular ride, the Polar & Garmin were 950m & 970m respectively and the Bryton was 3500m. I have also noticed that it displays incline incorrectly. It can go from +22deg to -35deg while riding on a flat road. Tonight I discover that I have lost a weeks worth of training on the web site. I think it is time to go back to Garmin which is tried and tested and is at least accurate. So be warned.