I have a what would be considered a old 'mobile fone' its a nokia , it is about the right thickness and size for me too hold, it has buttons that stand out a little & of almost the right size for me too press effectively ~something too consider beyond apps with parkinsons.
I have looked at smart fones(my nokia isn't) and friends who have them, but i found them difficult too hold with the touch screens going too unwanted area's within the fone with tremor and clumsy hands they wouldn't be suitable for me.
the doro? fone big and bulky buttons looked like it lacked features too move into the world of smart fones and App's? and the only other options were smaller nokia's than the one i presently have which again make look hard too hold and operate and prob again lacking app ability.
Not too much choice if you have parkies!.