For example I might consider: 1. Does it run Android? 2. Physically size- does it come in not obnoxiously large? 3. Does it support NFC payments? (surprisingly this still isn't a given) 4. Adequate performance 5. Camera quality 6. Screen quality 7. Battery life 8. Price 9. Community ROM support 10. Community Linux distro support 11. Can it run a desktop when connected to a usb-c screen 12. Geekbench
Only if everything else is equal would it make my decision