Had my 405 for a week now.
Quite a few problems and now watch has frozen completly (and yes the battery is almost full). Before this occured the bezel was freezing and the watch re-setting itself after 5 or 6 miles. Hopefully, this is a problem particular to my version and not a design fault but would be interested to hear if anyone has had similar experiences.
On another note; my watch came with-out a UK adapter, so had to use an adapater I already owned.
Also, the manuals do not discuss the need to download certain software in order to download the runs to the training centre. Had to ring customer support for help with this (who were very good).
Bit poor really for £260. Hoping that the shop will swap mine for one that works consistently.
On plus side- watch does look great and I think will be good with a reliable bexel that works cosistently and in the rain.