What is this WiFi thing? Will this work?

For high bandwidth online gaming you do need a wifi router. Phone's wifi device doesn't pack that much bandwidth to support hi-def games. But even that shouldn't damage the device. It'd probably just lag while you access the wifi. Inserting and exerting you sim too much isn't a good idea. These devices should work though. Check the comments section from where you are buying it online. Google it's reviews only then buy it if you really need to. I'd suggest getting an external connection and proper wifi router for gaming purposes.

@argav83: we've never used it for gaming. Just downloading stuff on the Xbox and my laptop and stuff similar.

Imo it shouldn't damage your phone if you are just using it for downloading. Wifi device inside you phone should have a capability and it should be able to handle thing inside that range but that's about it. At last it's all about devices config. Wireless signals can't damage devices. Devices would either support those signals or not. But getting a dedicated wifi router is fine also depend upon your requirement.

I do, but it broke my old phone cause it over worked it

🤷🏽

Well that's the thing, we can't afford anymore so I was hoping we could get this instead and pop in the Sim so it won't overwork and brake my phone again to keep using mobile WiFi hotspot

@DeathAngelS300: meet me over at kik