Skyzone’s latest OLED FPV Goggles, the SKY04X, beats Fatshark HDO2 in many ways. Although they both have the same 1280×960 display offering a massive 46° FOV, the SKY04X has more user-friendly features that are hard to miss.
New to FPV? Check out my FPV Goggles buyer’s guide.
Where to Buy?
You can get the Skyzone 04X FPV Goggles from the following vendors. These are affiliate links, if you purchase using these links, I get a small commission that keeps this blog going.
- Banggood – https://oscarliang.com/product-9voe
- RDQ – https://oscarliang.com/product-j1cf
- Amazon – https://amzn.to/30262FJ
- NBD – https://oscarliang.com/product-h12o
Skyzone SKY04X is available in red, white, grey and black colors. Mine is grey, but it actually looks slightly gold.
Accessories include the following: Menu, AV cable, XT60 to barrel connector cable, USB-C cable, two dipole antennas, two face plates and two face foam pads.
You can take a peek at the online menu here.
Eachine EV300O and SKY04S are ALMOST the same
From the outside, the Eachine EV300O might look the same as the Skyzone SKY04S and have the exact same OSD menu system. For someone who has never used these goggles before, might assume they are the same goggles, but there are actually a few differences.
Note that the EV300O is not the EV300D (with a D), which has problem with latency. So do not worry, neither the EV300O nor SKY04X suffer from the same latency issue.
The main difference between 04X and 300O is the display.
The SKY04X resolution is 1280×960 with a FOV of 46°, while the EV300O only has a 1024×768 resolution and 38° field of view.
The SKY04X costs only $10 more than the EV300O at the time of publishing ($490 from Banggood vs $500 from RDQ), so it’s definitely worth getting the SKY04X.
- OLED Display Panels
- Resolution: 1280X960
- Aspect Ratio: 4:3 and 16:9 selectable
- FOV: 46° in 4:3
- Focal Length Adjustment: -6 to +6
- IPD Adjustment (Inter-pupillary distance): 58-71mm
- Receiver Module: Skyzone SteadyView (5.8Ghz 6 Bands 48CH)
- Power Supply: DC6.5-25.2V (2S to 6S) or USB-C 5V
- Power Consumption: about 8.6W, 720mA at 12V
- DVR: H264 encoding, 30FPS, MOV format, 6Mbps bitrate
- Supports SD Card up to128Gb
- Built-in Head Tracker: 3-axis Accelerometer, 3-axis Gyroscope
- Dimensions: 185*75*67mm
- Weight: 267g
Check this page to compare FOV to other goggles: https://oscarliang.com/js/fpvgogglefov.html
Closer Look at SKY04X
The Skyzone SKY04X has a wider head strap than the one that comes with the Fatshark’s, For me it’s more secure and comfortable to wear. I see a lot of people with the HDO2 spent extra just to get a wider strap like the Skyzone’s.
Two types of face plate are provided for different face profiles. You also get two faceplate foam pads of different material. They stick to the faceplate by Velcro, so it’s easy to remove or replace.
Menu navigation is done by roller wheel buttons, like the ones used in the Eachine Cobra X we recently reviewed. They are much easier to use than push buttons.
It has all the usual connectors you’d expect on a high end FPV Goggles: HDMI input, AV in/out, Headphone jack for audio output (listen to motor sound during flight), USB-C for power and firmware upgrade, head tracker output, and power input.
The SKY04X can be powered from a 2S – 6S LiPo, basically most FPV drone batteries you have should just work. It also supports 5V power through the USB-C input, so you can use your powerbank if you want.
I really like this long XT60 cable they provide, so I can put this heavy battery in my pocket and not strap it next to my head.
Every time you press any of the buttons, a status bar shows up on top of the screen that tells you the voltage of your goggles’ battery, what channel you are on, and SD card status etc.
The settings menu (user interface) is the same one Skyzone use in all of their FPV Goggles, it’s super easy to use, and there are a ton of options.
Image settings: Brightness, Contrast, Saturations, Hue and Sharpness.
System settings: power input (cell count), voltage calibration, fan speed etc.
Oh, did I mention it also has a proper On / Off button with LED? :D Remember back in the days, we had to spend a whole afternoon just to do it on our Fatshark :)
External Module Bay
The Skyzone SKY04X has 2 Fatshark style video receiver module bays. It’s designed to house two diversity modules for “quad-versity” to enhance signal reception. I have yet to test this (a later post perhaps) but it’s nice that it’s possible with the 04X.
Note: For quadversity, you have to use Skyzone’s own receiver modules, third party module like Rapidfire and Fusion won’t work because they don’t output RSSI to the goggles.
The left module bay, and the included “SteadyView” module.
The right module bay, currently empty.
Out of the box, you get a free receiver module for free – the Skyzone SteadyView. This is a diversity module that can rival Rapidfire in terms of performance.
Kudos to Skyzone for finally adding an external module bay to their goggles, it’s probably the most asked feature after their last flagship release – the SKY03O.
You can use an aftermarket receiver module, such as the TBS fusion or ImmersionRC Rapidfire. It fits the Rapidfire perfectly. But you will need a custom 3D printed module bay, just in case the module falls out. The stock cover doesn’t fit all modules.
IPD & Focal Adjustment
The Skyzone SKY04X has IPD adjustment, as well as focal adjustment! Fatshark HDO2 also has this feature and I absolutely love it as I am near sighted. By adjusting focal length, I no longer need any special diopter lenses to install in the goggles.
Even if you don’t wear glasses, you’d be surprised how much clearer the image can get by adjusting it just a tiny bit (as everyone’s eyesight are slightly different).
But what the SKY04X does better than the HDO2 is the wider adjustment range. Normally in other goggles it goes from -6 to +2, but the SKY04X can go up to +6, which help those who wear reading glasses.
The IPD of the SKY04X measures around 59mm – 70mm, slightly less than the 58mm-70mm advertised range. But still, this is comparable to the HDO2’s 59mm to 69mm (my measurements, which is significantly narrower than Fatshark’s claimed 54mm-74mm).
HDO2 or SKY04X?
The Sky04X matches the Fatshark HDO2 in many areas including DVR and display. They basically have the same FOV, resolution, sharpness, clarity, IPD etc. And there are many parameters you can change in the SKY04X to personalize your goggles.
The SKY04X comes with receiver module, and it actually works pretty well! With HDO2 you would have to spend another $120 to get a decent module. And don’t forget about antennas. With the SKY04X, I really don’t think you need to buy a new module, the SteadyView performs on par with my Rapidfire. And it has dual module bays for future quad-versity feature.
I’ve probably said this a thousand times already in my past reviews – the Skyzone OSD menu is awesome! Fatshark doesn’t have one yet (they do now with the HDO2, but it’s just screen settings in plain text).
Power option is more flexible with the SKY04S. You can power them from 2S to 6S (as well as 5V powerbank). But with HDO2, only 2S to 3S batteries.
And I think Skyzone’s goggles are more comfortable to wear for most people thanks to the different faceplate and foam options provided. Fatshark only has one standard faceplate and if that doesn’t fit, bad luck for you.
Both goggles are priced the same at $500, in my opinion the SKY04X is better in terms of value.
However, when it comes to repair, Fatshark might be ahead. They have repair centers in different continents, so the turn-around should be quicker than Skyzone, which is fully based in China. Speaking from personal experience, I had my Fatshark HDO fixed twice a couple of years ago, and both times took less than a week. Although it’s not that common that you have to deal with customer service, it’s something to take into account.
By the way, the SKY04X is slightly bulkier than the HDO2, just by a little bit.