Allview Viva D8 has perhaps a few strengths. And here I mean the integrated 3G and GPS module (recommend iGo Android GPS). We get phone function and therefore can be used for calls. We have two cameras, one on the back has 3MP, and the front one MP - enough for video calls. Another advantage of the tablet is 4000 mAh battery that should provide a range of up to 5 hours.