I've been using X900F with Mediatek MT5891 for several weeks and here are my comments:
- System never crashed during that time.
- I've watched many different video files from USB stick and over the home network without any problems. Default video player is basic but quite responsive. I also use KODI which offers many more options. No problems with playing 4K/60 HDR video files from USB 2.0 stick
- processor (MT5891) is definitively not fast ;-) and SONY should have upgraded it long time ago. I'm very surprised that such a brand is making such a stupid savings knowing that users will complain all over the internet discouraging potential buyers. Can't understand it...
- Despite quite slow processor Android on X900F is absolutely usable.
- Obviously if you mainly use your TV as a monitor for your gaming console, TV box, blu ray player etc. then there is nothing to worry about. Everything works very well and quite fast. Changing settings, sources etc. is fast enough.
- All basic apps such as Youtube, Netflix, Kodi work without any problem. One exemption is Youtube and 4K/60fps videos. YT app struggles to play them. What is interesting exactly the same files are played perfectly after downloading them to USB stick and using any video player. There is no problem with YT app and 4K/30fps and lower resolution videos.
- System becomes less responsive if the processor is busy with decoding high resolution videos. In such a case it takes a while to open main menu, settings etc. This is annoying however the solution is simple. Just pause the video playback before you go to settings and everything will work snappier.
- I turned off all animations in developer options as I don't need them and this improved the speed of operation a bit
- I use Android 7. Haven't updated to 8 so can't comment on the performance of the latter. I like version 7
- If you want perfectly fluid android experience do not buy X900F. It won't deliver it and you will be disappointed. However if Android is not at the top of your priority list then X900F is a great TV with very good picture quality
Initially I considered getting 55'' X95G however after visiting my local shop I realised how important the screen size is for me, especially for 4K content and how it affects overall viewing experience. For that reason I decided to buy 65'' X900F (5 years extended warranty was included) for less than the cost of 55'' X95G and I'm very happy with my choice. I don't game on my TV apart from Flight Simulator from time to time so the input lag is not important to me at all. I game on PC and 240Hz monitor which is completely different story.... 2 extra speakers and two more 4K/60 inputs are not important as well as I can use AV Receiver with full HDMI ports. Even if Android start to become annoying I can buy Nvidia Shield or some other Android box which will offer more options than Android on X95G however so far I don't see a reason to do that. But there is nothing which can make up for a bigger screen size. This is just my reasoning. Yours could be completely different.
X95G is very good TV but just too pricey (in Europe) for what it offers. Unfortunately it is not innovative comparing to their predecessors in terms of picture quality which is disappointing and this also affected my choice.
Last edited by Tomek398; 03-13-2019 at 04:22 AM.