Allow for Multiple Preset Messages
Allow the custom and check in buttons to send more than one per-drafted message. Press check in for message one (I’m ok) Double press check in for message two (Going to sleep). This would allow for 4 total messages to better communicate. You could even make it a button combination like hold down power and check in for four five seconds for message preset two etc
Expand the area where you add phone numbers and/or emails for the Custom, Help, and Other message to include a name for the person. Or add a Contact list that you can put names, emails in and then select from it when setting up the messages. I travel in different ways, and sometimes I'd like my entire family to get the messages. Other times, for short day rides, just need one or two folks. Currently with just the numbers, it's tricky to remember who is who.
Need more characters in custom messages, for example, to include a link for the recipient to track progress.
This limit of 110 characters is ancient technology. If some platform doesn't support it, SPOT should split the message and send in multiple parts. It's not THAT hard...