The old trope that old people are hopelessly illiterate when it comes to technology is somewhat unwarranted. The home computer revolution is decades old at this point, and smartphones have been around for over 15 years. Seniors may not operate their smartphones as adroitly as their grandkids, but they aren't just sitting around pining for the days of rotary dial phones. Social media has, in particular, provided a way for seniors to more easily keep in touch with family and connect with friends, and smartphones help make it all possible. It's also an increasingly important part of health-care services.
In other words, seniors need iPhones, too, but they have may have unique needs. They're often on fixed incomes, and may have difficulty reading small text, or suffer from arthritis or have other accessibility needs. The best iPhone for seniors is one that won't cost an arm and a leg and will continue to be updated for at least a few years. Beyond that, we're going to make two recommendations: a small iPhone for seniors who find large phones difficult to carry and manipulate, and a large iPhone for those who need larger text and images.