In addition to its waterproof design, the G6 has two cameras on the back and includes a wide-angle lens. That means less straining for everybody with those group selfies. And if your mom is active on Instagram (probably to your dismay), the phone's Square Camera app will give her tons of new photo tricks.
While we wait for Samsung's Note 7 followup after its battery-exploding fiasco, LG has an inexpensive 5.7-inch phone that also has an embedded stylus called the Stylus 3. Good for jotting notes, annotating photos and presentations or just scribbling doodles, it'll help your mom as she goes about her working day.