https://community.ee.co.uk/t5/Archived-Posts/Gps-kids-watch-sim-invalid/m-p/1108834#M263806 <P><a href="https://community.ee.co.uk/t5/user/viewprofilepage/user-id/2385063">@Sdoo1</a>&nbsp; That watch will only work on EE 2G bandwidth on 1800Mhz. &nbsp; &nbsp;If the sim is activated and working and your having issues you’ll need to contact the watch manufacturer as the sim is working.&nbsp;</P> Sat, 25 Dec 2021 08:17:23 GMT Chris_B 2021-12-25T08:17:23Z https://community.ee.co.uk/t5/Archived-Posts/Gps-kids-watch-sim-invalid/m-p/1108815#M263805 <P>Hi I have bought a kids GPS watch and can’t get the watch to recognise it as valid- I have activated the sim on a phone and added credit to it and it still says invalid… the manufacturer spec says&nbsp;</P><UL><LI>e: GSM</LI><LI>Frequency: GSM850/900/1800/1900MHz</LI></UL><P>and it is definitely the correct size of SIM card… any help please?</P><P>&nbsp;</P><P>Thanks for your time!</P> Fri, 24 Dec 2021 22:11:24 GMT https://community.ee.co.uk/t5/Archived-Posts/Gps-kids-watch-sim-invalid/m-p/1108815#M263805 Sdoo1 2021-12-24T22:11:24Z https://community.ee.co.uk/t5/Archived-Posts/Gps-kids-watch-sim-invalid/m-p/1108834#M263806 <P><a href="https://community.ee.co.uk/t5/user/viewprofilepage/user-id/2385063">@Sdoo1</a>&nbsp; That watch will only work on EE 2G bandwidth on 1800Mhz. &nbsp; &nbsp;If the sim is activated and working and your having issues you’ll need to contact the watch manufacturer as the sim is working.&nbsp;</P> Sat, 25 Dec 2021 08:17:23 GMT https://community.ee.co.uk/t5/Archived-Posts/Gps-kids-watch-sim-invalid/m-p/1108834#M263806 Chris_B 2021-12-25T08:17:23Z