Has some pros: The application offers a helpful service. The microphone works really well. Although there are a lot of drawbacks to these choices, they ended out to be the most acceptable of the three possibilities. If I were to get such a watch, I wouldn't pay more than $500 for it. Among its drawbacks are the following: 1. The charging plug and SIM card slot are easily removed. 2. If the SOS button is pressed when the watch is turned off, there is a good chance that a false signal will be sent. 3. There is no way for you to lower the volume of the call.