Horrible Battery Life
This looks like a cool device for a real cheap price, however ths usability is hampered by horrible battery life and a very limited set of features. The battery does not last more then 15 hours eeven if you do not use the wristwatch as a PDS, which causes the watch to shutdown almost everyday before you can recharge it.There are not many features other then the most basic ones, as a result this is just a cool toy to play and nothing more then that.My 2 cents, do not buy it if you want to use it.