A Casio Watch. I no longer have to pull out my smartphone just to get the current time. It also shows current date and weekday. It has a button to activate light so I can easily read the time when it is dark without getting flashed by my smartphone screen. I also use the countdown timer frequently for cooking or as short term reminder. The battery lasts for years. No "smart" functions like getting the news, messages from friends or email notifications. You can put it underwater, swim or shower with it and it still works.