I searched on the shop, the new model should be the one labelled ATH6, that is SUUNTO 22MM ATHLETIC 6 SILICONE STRAP, it’s a pity they are that expensive, by comparing with the price of the watch itself we have: 1 Race S = 6 ATH6 straps (!)

@Arie-Rahmadi for anyone who experience the same thing. I just delete my alarm and extend the DND period, and it solve the problem. Don’t really know which the actual culprit (alarm or DND) but it perfectly track my sleep today.

@dreamer_ I’ll receive mine tomorrow. I’ll test it on known trails.

@dreamer_ did the same thing and now everything was tracked, thanks

@Egika Thanks. In the end I did the holding of the middle button and the upper button together. Triggering the service menu. Then the 12 sec upper button did it.