Hello to everyone.
First, I want to thank every one of you that posts your experiences and try to answer to others problems. You are very helpful.
Second, I wanted to post my experience with fr235 (bought in june) with a summary of what I experienced in terms of battery - hr - various known issues (cadence lock and no-map): but i'm not so good in English and it would have been take some time... maybe i'll post in the various specific topics like the battery usage....
But in the meantime: I've not upgraded from 5.40 to 6.10-20-30 because of all the issues (death of hr or updating loop) reported here...
I've managed to stop the upgrade from passing to the watch until I plugged into my standard-windows desktop pc with garmin express (until now I was able to stop it, using web-connect and linux-computer )... so now the upgrade is on the watch waiting to be started and I don't know if it is causing problems or not...
Meanwhile other upgrades: my phone upgraded android from 5.02 to 6.0 - connect app upgrade added some livetrack features ...
After all of this the watch and connect app are not connecting properlyor syncing - if not for short periods after 5-10 minutes.
I'm good to not syncing it because i don't use notifications, and was only doing it to see my activity right after finishing it... but if it is fixable... it would be better...
thanks in advance, bye