Hello, I'm looking after a tablet with the best 4G wolrdwide compatibility. Because i travel a lot and in each countries I visit I buy a local 3G/4G sim card and it give me access to data network ways cheaper than roaming. So I want a 8" tablet with a maximum 3G/4G usable bands. I know that Sony Xperia Z4 meets this specs but it's too large and too expansive. I saw the colorfly G808 4G which seems ok. But is anyone know an other one ? Thanks.