I have had two for many years and both are working fine. I bought the second because they introduced a waterproof version. Still use both 10? years later. This could tip me to buying a third with colour.

Yes you can. Very open ecosystem for loading your own stuff and library loans.

Not incoherent at all and I appreciate you taking the time to interrupt your beauty sleep to respond. ;)

This technology space has a lot of promise but knowing when it is really ready for prime time is difficult to discern with all the hype. Sounds like it is close, or fully useable depending on use case.

You hit all the key points so no follow up questions. Thanks!

Not the purpose of the thread I know but would you care to share additional information? Model, price, comfort, compatibility, are they good?