My wife is 5'4" and curvy. She loves her Osprey Lumina 60. Same great suspension as other Osprey packs she's loved, but much lighter materials and fewer bells and whistles. She tried the Mariposa and it didn't work for her (but that's been my primary pack for years, and I love it — as a 5'9" male). Both packs hold a bear can vertically pretty well, though there's some technique to learn about getting it out of the Mariposa (it's a little tight).
As long as you'll have a phone with you, the inReach Mini is the way to go IMO. Small, lightweight, easy to use. We mostly use it to send text messages and check weather, but of course the SOS feature is the most important. You can also preset messages such that you don't need?a phone with you, but that interface is a little clunky given the minimal buttons.?
