No band 28
The specs read well. how ever there is only the below review from the coolicool site.
Hands on review
https://www.youtube.com/watch?v=Z-tRYHjxQUg
Highlights
6.0 Inch 2K 2.5D IPS Screen, 2560*1440 Pixel
Helio X10 MTK6795 2.0GHz Octa Core
3GB RAM + 32GB ROM, Support 128GB TF Card Expansion
13 MP PDAF Back Camera + 8 MP Front Camera
Android 5.1 System
3610mAh Battery
Support HiFi
Dual SIM: Micro SIM + NANO SIM / TF Card (The SIM Slot Can Be Used with either a NANO SIM Card or a TF Card)
Band: GSM 850/900/1800/1900MHz, WCDMA 850/900/1900/2100MHz, FDD-LTE B1/B3/B7, Support 2G & 3G & 4G LTE Network
PPTV is a Chinese online tv brand they are a competitor to Letv
It's the UMI Rome all over again.
When there hasn't been a hands on review WITH TALKING for a phone you find to be of sketchy quality, forget about it.