Posted by a reviewer on Amazon

First of all you must know to turn off pin on the simcard before you iштыке it into the watchsecond the watch doesnt accept phone numbers of guardians you should set up via sms if you write them with 79260000000 instead you should put them as follows 8107926

Posted by a reviewer on Amazon

Third if you put the watch into mode 3 or 4 you will not be able to dial it from the phone of a guardian

Posted by a reviewer on Amazon

Youll simply get the phone is busy or unavailable responsesfourth it doesnt response to each sms

Posted by a reviewer on Amazon

Sometimes youll need to send 2 or 3 or even more sms to get a call or receive gps linkso its one hell of inconveniencesif you buy it as a toy or only for dialing your kid at school it may be useful but i think usual phone is much more reliablebut if you want to buy it for securityemergency reasons dont waste your money

Posted by a reviewer on Amazon

By texting a simple command to the watch within second i will get a google maps link back to me with her location at any time of the day

Posted by a reviewer on Amazon

The time stop running after 9 months

Posted by a reviewer on Amazon

Contacted the seller who replied we checked with manufacturer there is no way to replace the clock battery

Posted by a reviewer on Amazon

Since his school does not allow phones i bought him this watch