Most fitness trackers will do this with cell phones. Mine is a garmin vivoactive 3 which i use for swimming, golf and walking. It also pairs with my android cell phone and sends me text messages that arrive.

When a call comes in it vibrates and shows who is calling. It gives me the option to answer or reject. Another nice feature is use as an alarm clock. Once I set it, it will vibrate at the desired time. Far better than trying to hear an alarm, and mobile too.