Good quality, good apps, big advantage micro usb port, free of special chargers, good battery performance, display not very vivid colors, but well. Generally very good device.
Battery last a long time has a verity of apps and watch themes you even have the choice of making your own personal theme. I enjoy the watch and recommend it.
I am actually super impressed with this watch even though it is 5 years old and not well supported in terms of apps at the Google Play store. The battery is lasting me at least 3 days with moderate use and the processor is super fast moving between screen and apps. One thing I have realized that a square watch is indeed a much better experience since the screen is easier to explore than a round one. I highly recommend this watch as a smartwatch but NOT as a fitness tracking device which is not really built for that.