I really like that if I sustain a hard fall or if heart goes bonkers it’d call 911 for you. Also the noise detection would incentivize wearing your personal protective gear.

You can get notifications on your wrist for text / email / calls. I like this so I can quickly gauge if it’s a 911 safely cease what you are doing and contact the person or just silliness that can wait for break.

Full disclosure I thought they were neat and got one as a gift & ended up enjoying it more than I thought I would.

Also it tracks how much you are walking in a day so you see why you are tired at night.

FWIW

Stay safe out there

Backpacking / rucking activity taking backpack weight into consideration in caloric usage