It really is hard to choose between these devices because nobody gave a specific answer . We will expand the level of debate.
GPD Q9 vs JXD S7800B vs GPD XD !
Which one is better in terms of hardware ? I mean to be able to run the heaviest games for Android , performance, image resolution , image quality and especially the battery life and Controllers . Please give me an objective answer because I'm that same abyss.
As skelton says. And the difference is BIG. 4-8 times big. For emulators no big difference, but for native games.. Even san andreas on highest settings runs like a charm on the q9 and will on the xd. They're really really fast - on q9 i measured 66% highrr fps in the t-rex bencmark then the galaxy s6 edge which is 9 times more expensive! Xd will be a bit slower but barely.
And the xd has same resolution as jxd but om smaller screen so highest ppi. Also dual joystick analogs and l3 and r3 buttons included. 6000 mah massive battery.
Analogs of q9 are bad, dpad great. If i were you, id buy a xd hands down. Definitrly not the jxd, its massively outdated and just as expensive if not more!