H2 problems

I have lots of problems with my microwear h2. I get horrible battery life, the battery doesn’t last all day unless I have aeroplane mode on. (that’s on standby when I’m not using the watch, not connected via Bluetooth) Mobile data does not work, WiFi abd mobile signal is poor. I have to hold my watch in either a certain position or get quite close to my WiFi network in order to get it working.

Is this not normal? When I have my SIM card in, sometimes it will say 1 bar of 2g signal, the next minute I will have full bar of 3g,however no matter what the mobile data will not work (works perfect on my smartphone)