Should i choose zt180 v2 10" or imx515 8" ??

[lentm]

I actually need the tablet for mostly PDF; however,

i may play some games with it...

i really wanna read the books or comics with vertical mode.

and dont wanna feel much lags on my tablet.

so..what should i choose ZT 180 v2 10" or IMX515 8"?

Thank you!