Soldato
Interesting. I've never had a problem with wearing a watch before 24/7 but my latest forerunner destroys my skin under the strap after a few days, so much so I've I've stopped wearing it. I have emailed garnin and they replied asking for loads of info, pics etc., but I haven't got round to replying yet.With the 6 i don't think you'll have battery issues with playing music on it, i'd say it'd comfortably cop with runs up to around 10 hours, so absolutely fine for 99% of runs.
I agree about the strap, i never used to have issues, but recently have found my wrist to get really irritated. Aliexpress for me for replacement straps.