Please give a us few recommendations,
budget $300 outright
android
They tried a Xiaomi redmi note 4 but 2 problems in a few months, they dont want to deal with a overseas non local model
they liked the xperia ,
Ideally, one that works well, 5.5" screen would be the best
I used to have a note4 which was brilliant but thats getting old,
what about a S5 or s6?
I assume the cheaper samsungs eg j1 based on a friends expeirence, slows down and begins to get buggy quickly
they will use it for msgs, calls and photos and facebook etc
Don't go for an old phone or a Chinese phone, even Xiaomi. They're more trouble than they're worth.
Get your relative a Motorola G5 or something, although it's only 5 inches. Ignore the screen size and focus on how easy the phone would be to wield. You can always adjust the screen scale to make it bigger.