When I get into my car I'm not pushing tracking buttons and numerous carp before I drive, I don't see why it's acceptable on a bicycle.

I found a GPS computer that may do what I need, I read the manual, and it looks like other than turning it on, I don't have to do anything else..... and it shuts off automatically when not in use... we shall see... it's due in Friday, and I'll post the results....

IF that doesn't work out I think I will get the Cateye velo 7.

I wanted to avoid magnets but it looks like the best choice for wired.

A "wireless" that still uses a magnet and sensor isn't appealing...