Hi,
I am trying to decide between one of these devices to hook up to my 4k TV. I have seen many mixed reviews for the mi box s not being able to handle 4k streaming for netflix/etc. I am mainly looking for something that can cast netflix/hulu from my phone but also cast 4k video that is saved on my desktop. Will the mibox adequately handle that?
I can't complain about my mibox so far. Handling everything I throw at it with grace. From time to time, apps like Plex would act around and freeze the playback while sound is still going, but I guess it's the developer's fault. 4k works perfect on netflix. About the Chromecast, I believe is just a cast-to device(I owned a regular Chromecast, 2nd gen) and hbo cast from phone would crash often. The mibox s acts as a standalone android device, you can install multiple apps, from what I've heard even games from playstore if you pair a Bluetooth controller. Can't say for sure, I haven't tried this.
I recommend you go for the mibox, far more possibilities(did I mention keyboard/mouse support, and connection via ethernet with a dongle? 3.5mm jack port, and storage extension capabilities)