I have given my old Sumsung to my father, who barely know how to send a mail, and enabled the ultra power mode. What it does is restrict the phone to the home

I have given my old Sumsung to my father, who barely know how to send a mail, and enabled the ultra power mode. What it does is restrict the phone to the home screen, you can have a maximum of 8 apps (which are all shown on the home screen) and barely anything else. He does have notification but it's only for these 8 apps. And somehow he managed to get it working, he only make phone call, send messages and take photo. That's all. Before I had bought him one of these senior flipflop phone. The thing was expensive, horrible and the battery was absolute crap. It died in 2 years. My Sumsung xcover pro on the other hand, battery last 2 weeks and he is running it since 5 years without complaints.