i need a mp4 player with good 1080p support with hdmi and if possible wifi and android and under or just above $100. thx and removable battery if possible.(will probably use it to watch it ony tv but want it to be also portable)
Almost no players or tablets have removable batteries. It is just not in the design anymore, especially in this price range, so just check that off the list.
At the $100 mark you will barely get a player with decent 1080p support. Look for a SC9800 player like the Ainol V8000HDR. It can be found for about $100 and will do the job. It also has HDMI. It will have some issues with some 1080p files though. And quite frankly the problems get more pronounced as time goes on. The software is as is, and considering its age I doubt Ainol will give it any more firmware updates and this will effect the compatability.
Android tablets may not get an updated OS (sometimes they do though), but market applications get updated regularly. and you can always download another if the one you are using doesn't work. This means very high versatility/compatability. Only really limited by the power of your hardware.
If you want android and wifi you are looking at the $130-$150 price range. Specifically the Novo 7 Advanced (with the A10 allwinner), or the Windows N50 DT/Zero (RK291
. The Novo 7 Advanced I can vouch for it's compatability. THe Windows N50 others will have to attest to, but it seems to do the job.
I will say short of the hi10p h264 videos, the Novo7 advanced will play anything I give it (laughing and putting the Tegra2 tablets to shame), and I've tried some horrible 1080p high profile h264 files.