Also fire TV has ethernet connection and Fire TV is wifi only. Normally ethernet provides better and more stable connection. Since we try to watch Chinese TV streaming from China, you want to minimize ping as low as possible.
Definitely support Chinese character display. Maybe not support Chinese input for search. But who care about it? You got remote and can just click up and down. Also you got 14 days return. If you don't like, just return it.
"Channel margins aside, Amazon was selling the Fire TV at a small profit per unit, since Teardown.com estimated that the Fire TV costs $93 to manufacture. By comparison, IHS estimated that Google's Chromecast carries a bill of materials of $25.60. Since it would have been tough for Amazon to offer a better CPU, more RAM, more storage, and dual antennas in the Fire TV Stick for $10 more, Amazon will likely sell the Fire TV Stick at a loss."