Even though the specifications say it has a HDMA port no it don't.
No inbuilt SD memory slot, but it will take a USB memory stick through the OTG connector.
The 512 ram is all you get and its not upgradable.
Battery is around the 3000mah mark whatever that means ;)
i think they didnt mentioned it had hdmi output and most of android tablets ram is not upgradeable and all reviews say that it has external tf card slot