1) maybe? this is just a hacker device for now. You can easily add a USB LTE modem if you'd like.
2) battery life will depend on which OS you use, peripherals, software duty cycle etc. It's a hacker device, don't expect it to work without putting in the effort to tune/tweak it.
2) battery life will depend on which OS you use, peripherals, software duty cycle etc. It's a hacker device, don't expect it to work without putting in the effort to tune/tweak it.