@Todd-Danielczyk Thx for your help!

Hey @Audaxjoe thansk for replying I‘m already the owner of different Bands (Color). The M/L size is tight on a 7mm wetsuit and (for me) impossible to wear on a drysuit. Looks Like I have to wait for XL straps

@Stoke80 yes, sorry for my english just found this https://www.youtube.com/watch?v=iUuuNgRAxhU

@Greennorth I bought a like of straps from AliExpress super cheap and they’ve been great!

@luke55 I have found Velcro straps give me better OHR readings than the Silicone ones. You can order 22mm velcro straps from Amazon and pins to add for holding the band. You won’t be able to change bands quickly but I prefer the Velcro bands.

@cosme-costa agree. Karoo is great.

They don’t seem to be available, but someone found a clever solution: https://www.reddit.com/r/3Dprinting/comments/17g7kk2/finally_done_suunto_x9_x10_rubber_strap/?show=original Maybe that helps

@Christophe-Roos I can confirm your observation: I have a Suunto watch and when it ran out of battery once, I thought I use the Smart Sensor belt on its own, with the app (this is possible with the Polar belt and the Polar Beat app). The app offers to record an exercise, but one cannot couple sensors to the app. You definitely need a Suunto watch between the app and the Smart Sensor.

@vinc14 Maybe because they have decided it according to market and default size for almost everyone is M. If not, they probably would need inventory for something they might not sold. Just guessing.

@ijon-foden same probkem here