My dad's been pestering me to find a new phone for him. His main complain is messaging, he needs the easiest phone to send messages (even with one hand). But he's unsure about using phones with QWERTY buttons because (stubborn). Save me TT.TT

Brand: Preferably Nokia (he gets frustrated with other brands)
Budget: None
Specs: Easy to SMS (Good tactile feeling on buttons, easy messaging function i.e. change caps locks etc)
Long lasting battery
Friendly OS (or dinosaur friendly)
Type: Candybar