This is really just a warning for anyone considering purchasing directly from Garmin UK at the moment.
They have on what appears to be a very good sale on some of their older model watches. I myself ordered a Forerunner 35, pretty simple watch but just wanted to update to something with a wrist HRM.
Anyway opened the box and put the device on to find an activity from December on it! Suspected the worst, i.e. that the device was a previous return rather than new new, and low and behold the first run I used it for the GPS tracking was off (zig zagging back and forth at start, went way off in the middle of run) compared with my older device I had my other wrist.
Really, really disappointed by this. Second time I've tried with this same model, same issue both times. However potentially not a huge surprise if Garmin are selling previously returned items without listing them as such.