Review | Ugoos X4 Pro Amlogic S905X4 Android 11 TV Box

Coming with another (second out of two) review of the new X4 Pro Android 11 (!) TV box from Ugoos, I wish to thank again James from Ugoos for sending me both review samples.

Ugoos always dabbled with more than one chipset maker for its boxes. Here they use the (pretty) new Amlogic S905X4 chipset which offers some impressive video performance for a relatively low price.


What’s in the Box?

X4 Pro comes in a tiny box, which means that even the IR receiver (“eye”) is actually a dongle that connects to the box externally. It is made of black plastic, but feels pretty sturdy and very light at only 90 grams.




X4 Pro Looks

Here are the items that come in the box: X4 Pro TV Box, one antenna, IR receiver dongle, Infrared remote control, HDMI 2.1 cable, a 5V USB-C power adapter, as well as a small user manual:



X4 Pro Specifications

Operation System Android 11
Language English, Chinese …Multi-Language support
CPU Amlogic S905X4 with Quad-Core Cortex-A55 12nm
GPU ARM Mali-G31MP2 Open GL ES 3.2 Vulkan 1.0
Storage Capacity (Flash) 32GB (EMMC)
WIFI 2.4G+5G The wireless module complies with IEEE 802.11 a/b/g/n/ac support 2T2R MiMO technology
Bluetooth Bluetooth 4.0 with LE technology
The Extended Storage TF Card, up to 32GB (SD2.X,SD3.X,SD4.X, eMMC ver5.0)
Power Supply DC 5V/2.5A via USB Type – C
HDR Support
HDMI Output HDMI (2.1 and 2.0) Type-A Support maximum 4Kx2K@60fps 10Bit + 1080P60 10Bit
1*USB 3.0, 1*USB 2.0 Host
Optical Output 1*SPDIF
Led Work Light Support
Network 1*RJ45 1000M (1000M Ethernet Integrated IEEE 802.3 10/100/1000M Ethernet MAC with RGMII
Power Supply 1* USB Type – C Jack
Audio Container MP3,AAC,WMA,RM,FLAC,OGG
Audio Out Supports MP3, AAC, WMA, RM, FLAC, OGG
Built-in serial digital audio SPDIF/IEC958 output and PCM input/output
Built-in stereo audio DAC,
Stereo digital microphone PDM input
Support concurrent dual audio stereo channel output with combination of analog+PCM or I2S+PCM
Video CODEC AV1 Video Codec Support

VP9 Profile-2 up to 4Kx2K@60fps H.265 HEVCMP-10@L5.1 up to 4K*2K@60fps
H.264 AVC HP@L5.1 up to4K*2K@60fps
H264 MVC up to1080P@60fps
MPEG-4 ASP@L5 up to 1080P@60fps (ISO-14496)
WMV/VC-1 5P/MP/AP up to 1080P@60fps
AVS-P16(AVS+)/AVS-P2 jiZhun Profile up to 1080P@60fps
MPEG-2 MP/HL up to 1080P@60fps(ISO-13818)
MPEG-1 MP/HL up to 1080P@60fps(ISO-11172)
Realvideo 8/9/10 up to 1080P
WebM up to VGA
Multiple language and multiple format sub-title video support
MJPEG and JPEG unlimited pixe resolution decoding(ISO/IEC-10918)
Supports JPEG thumbnail, scaling, rotation and transition effects
Support *.mkv,*.wmv,*.mpg,*.mpeg,*.dat,*.avi,*.mov,*.iso,*.mp4,*.rm
and *.jpg file formats

Software Extension Support Google Play & APK install
DLNA, Miracast Protocol Support DLNA, Miracast Protocol
Remote Control Remote controller
IM Software Support Skype/QQ/MSN/GTALK (Depends on APK )
Office Software WORD/EXCEL/PDF(Depends on APK install)
Operation Temperature 0~60℃
Storage Temperature -10~60℃
Humidity Environment 5%-90%(No condensation)
Certificate CE, FCC
Dimensions 110*62*22mm
Net Weight 90g
Gift Box Size 155*100*85mm


X4 Pro Benchmarks and Testing

*All completed benchmarks have been repeated 3 times and results have been averaged to give a more accurate reading (aside for PCMark):

Antutu Benchmark


The Antutu benchmark tests single core performance over multi-core as it is a better indication of the performance of one device over others in most situations. As the newer (version 9.x) is unable to run properly on this box, I have run the previous (6.x) version and included the results. X4 Pro comes in 6th place and shows respectable results for such a budget chipset.


GPU Mark Benchmark

GPU Mark tests 3d gaming performance and also provides a normalized score according to the used screen resolution (for a more accurate result). The test is quite short and should be taken as a supporting result to that of the more serious 3D Mark benchmark.

X4 Pro shows great results here, coming first of all the TV boxes, and second only to a tablet with much more GPU horsepower..


A1 SD Benchmark

A1 SD Benchmark tests RAM and flash memory speeds. As can be seen in the provided graphs, RAM is much faster (by a factor of about 40) than flash memory – that is why it’s in smaller amount and is also volatile (does not keep its contents after a reboot).

X4 Pro breaks the records and positions itself on the top of the hill when it comes to Internal storage read speeds, while its fast DDR4 RAM places it no. 5 in the RAM copy speed test.


PC Mark Benchmark


extensive suite of productivity tests which is designed to show a more balanced picture of an android device’s ability to perform various tasks such as spreadsheet calculations, photo editing, complex web page browsing and more.

X4 Pro surprises as the new king of PCMark results, passing by much more powerful chipset and leaves them in the dust!


3D Mark Benchmark


3D Mark benchmark is considered as one of the best ways to test 3d performance on Android (and other platforms). As the new versions of 3D Mark no longer offers the standard Sling Shot test, There are only a few boxes tested with the extreme test (and now also Wild life, which by the way brings this box to its knees at an average of 2 FPS). The GPU included with the X4 Pro only manages 4th and last place at this test..


X4 Pro Extra Benchmarks

For some more information, see the following screenshots from other benchmarks such as Passmark and Vellamo:

ugoos,x4,pro,android,tv,box,streamer,amlogic,s905x4,passmark,suite,tests ugoos,x4,pro,android,tv,box,streamer,amlogic,s905x4,vellamo,suite,tests


X4 Pro Bugs and Issues

The most pressing issue (even after the latest firmware update to date – 1.0.7) is Kodi performance. Both Kodi 18.9 and Kodi 19.3 have the same issue: Video playback stops after 5-7 minutes and exits to Kodi. And kodi itself may crash to the desktop during library updates/scraping.

8K video playback seems broken after latest firmware update

  1. Game performance is not the greatest, but as this chipset is not on the high end but rather directed at budget boxes, it’s less of an issue
  2. Early firmware iterations caused video playback to crash in kodi after a few minutes. it was already corrected with firmware updates 1.0.7 and 1.0.8

X4 Pro Root Function

X4 Pro comes with a built-in root function which works like a charm. All you need to do is go to the settings, locate it under Ugoos device preferences section, and turn it on or off as needed. It will keep after reboot, till you decide to turn it off. The power and decision are all yours!



X4 Pro Video Playback testing (using Kodi)

Resolution Video Format Local Playback Network (LAN/Wi-Fi) Playback
720p (1280*720) AVC (High@L4.1) Plays Okay Plays Okay
1080P (1920*1080) AVC (High@L4) Plays Okay Plays Okay
 2160P (3840*2160) HEVC (H.265) Plays Okay Plays Okay
4K (4096*2304) AVC (High@L5.1) Plays Okay Mixed results
4K HDR HEVC Main 10@L5@High HDR10 Plays Okay Mixed results
4K TS HEVC HEVC (H.265) 10Bit Plays Okay Mixed results


X4 Pro showed excellent picture quality, and also surprised with some support for 8K video. And I am happy to report that following several firmware update cycles (especially the latest 1.0.7 and 1.0.8) most of the video playback issues have been resolved!

However, some issue were evident even after one or two firmware update cycles.

* Currently crashes/stops playback and return to Kodi after a few minutes of playback… tested with Kodi 19.3, 18.9 and variants of Kodi such as RKMC and WBMC.

X4 Pro actually does show playback improvement following the latest firmware update (1.0.7). It was able to play an entire movie from start to end without crashing, using standard Kodi 19.3.

But.. this box is still unstable. Whether it is because it overheat (which it does, upwards of 80c when benchmarking for instance), or because of the brand new Android 11 (yes, I know 12 is already out, but not for TV Boxes) – there are plenty of issues to be ironed out before I could say it’s a good product.


Bellow are the results from Antutu Video tester 3.0 which runs a series of test videos in different video and audio formats to test for compatibility. The first run froze, but the second run managed to complete and these are the results:

ugoos,x4,pro,android,tv,box,streamer,amlogic,s905x4,antutu,video,tester ugoos,x4,pro,android,tv,box,streamer,amlogic,s905x4,antutu,video,tester ugoos,x4,pro,android,tv,box,streamer,amlogic,s905x4,antutu,video,tester

X4 Pro Network Performance

I tested the network performance using the popular application from the play store. I tested both WiFi (the fastest WiFi supported – in this case 5GHz 802.11ac), and wired network connection. My home connection is a symmetric 1GBit Fiber connection so it would not limit the testing:

The top result is for wireless (Wi-Fi) connection, and the bottom result shows the X4 Pro’s Wired LAN performance. For a small box like the X4 Pro, these results are excellent (because when PCB real-estate is low, manufacturers tend to skimp on components such as network adapters):

review,x4,pro,tv box,android,11,ultrahd,amlogic,s905x4,speedtest,wifi,wired,lan


X4 Pro Gaming Performance

Asphalt 9 Legends – a 3d graphic intensive racing game. On the X4 Pro, the game loads fine and plays relatively smooth, but control is near impossible (tried with remotes as well as Ugoos remote app which has a gamepad option). It may be that this game requires a physical gamepad which I do not own. (although with the previous generation “Asphalt 8” I was able to steer with a remote)

review,ut8,pro,tv box,android,11,ultrahd,rockchip,RK3568,asphalt,9,legends,game


Angry Birds 2 – a popular 2d action game. On the X4 Pro, the game loads and plays fine (including with the Ugoos remote touch pad function), but there seems to be a persistent bug in which an icon stays (“ghosts”) on the screen and it does not allow you to proceed further.

review,ut8,pro,tv box,android,11,ultrahd,rockchip,RK3568,angry birds 2,game


Walking War Robots – an online robot warfare game that requires a game-pad (I don’t have a game-pad). On the X4 Pro, this game loaded and run fine and also allowed me to use the game pad function in
Ugoos remote app (although the game pad runs horizontally, and the controls responded as if I am using it vertically. quite confusing).

review,ut8,pro,tv box,android,11,ultrahd,rockchip,RK3568,war robots,game


X4 Pro Conclusions

Did I like it? After the last two rounds of firmware updates, definitely yes! it’s a small but quite impressive box!

Would I recommend it?  Yes. It’s not the cheapest solution in the market, but Ugoos’ commitment to keep improving the X4 Pro makes it a good choice, plus it won’t take much space!

You like it! Where can you buy it? currently for just under 90 USD (for the Pro model) Product – Ugoos X4 Pro 4GB 32GB X4 Cube DDR4 Amlogic S905X4 X3 Pro S905X3 Smart TV Box Android 11 9.0 1000M 4K X3 Cube X3 Plus Set Top Box


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