I've been using this tablet for a few weeks and its very good. I spent around $206.
99% same size as an iPad Mini 3.
Runs both OS well. Excellent screen.
Android 4.4 & Windows 8.1 OS
Intel Bay Trail-T Z3735F Quad Core 1.83GHz
7.9 Inch 2048X1536 IPS Retina capacitive touch screen (the screen is awesome)
2GB DDR3 RAM and 32GB eMMC NAND FLASH ROM
Support HDMI/Bluetooth/4K Video function
Front 2.0MP + Rear 5.0MP camera
SD card support (I've got 64gb)