What exactly do you want it to do? You can implement TOTP with a 10 line python script and I probably have a few of those kicking around. I’ve ended up doing that at least a couple of times.

Use a medic alert bracelet if you need something like that. EMTs are trained to look for it. They aren’t going to derp around looking at your phone.

They don’t say what models but it probably doesn’t matter. It’s fine with me if my phone is basically generic. (Moto G Stylus 5g 2023).

Empirically, 42.25 instead of 42.

I’m an antifan of Apple but the M4 Max is supposed to be faster than any x86 desktop CPU, and use a lot less power. That’s per geekbench 6. I’d be interested in seeing other measurements.