I use the Galaxy Watch 6 Classic and find it pretty user-friendly. Once it’s set up—which is the most involved part—it’s mostly just turning the dial to find a function or swiping up to access the menu. For calls, it’s simple: swipe up, tap the phone icon, then either dial the number or select a contact. I’ve customized my watch face to show battery, date, time, steps, and heart rate, which keeps things clean and useful.
Some smartwatches support cellular data, which can be a big help if your dad might need to make calls or send messages without being near his phone or Wi-Fi—just something to weigh against the extra monthly cost. Battery life really varies, especially if GPS is on, so if there’s a chance he might wander or get disoriented, making sure the watch is fully charged daily is crucial. Thankfully, newer magnetic chargers make that easier than older plug-in styles. Ultimately, going with a model that’s compatible with his current phone is probably the best move—flagship brands usually offer better accessibility features and support.