I am interested in the SPOT GPS Gen 3 unit.  Like the price but

reliability is very important.   I don't want a watchband thing.

Features I want are 1.  flexible subscription---I don't need to pay monthly for this service

2.  Reliable emergency communication in back country

3.  Ability to send message home daily that "I'm OK".

Not so important is ability for family to access my exact route.

Are there other brands I should check out?