The signs and how they treat their phone:

Its their baby and they are super careful with it:

LEO, VIRGO, AQUARIUS, LIBRA  

Is paranoid about losing their phone they even have nightmares about losing it:

CAPRICORN, PISCES, SCORPIO, GEMINI 

 Their phone is their diary, they keep everything on it, its a paper-free record of their life is also kinda clumsy with their phone:

TAURUS, SAGITTARIUS, CANCER, ARIES