I bought Apple watch 3 2018. Now the year is 2020. The watch is working very well. I did not got any lagness as most of the other smartwatches has been facing. Apple Watch is very useful for the fitness, as it shows everything. It has a pulse rate, heart beat rate and so on. It also provides the calories have been burn in the workout. In the watch, the call can also be accepted or declined. In this watch, I can do everything by checking by fitness routine, pulse rate, calories and many more. I love the Apple Watch Series 3.