It's starting to get in the screen replacement category! I measured my visual acuity at 90-100 PPD. So once I have 8k^2 per eye and keeping the same FOV, pixels won't be an issue anymore :D The high res VR panels race is now truly started, best current released HMD resolution is the Varjo XR4 (3840 x3744 per eye, marketed as 51PPD)
Looking forward to learning the central PPD! Varjo XR-4 has a central PPD of 51, and an average PPD of 34, the same as iFixit's estimate. Oh, hmm, how did they come up with 34? 3660/100 = 37. But I think 100º horizontal FOV is for both eyes, so we really need the per eye FOV. If the binocular overlap is similar to Bigscreen Beyond (~80º) then the per eye horizontal FOV would be 90, which would give a PPD of 41. If the overlap is similar to Varjo Aero (~70º) then the per eye horizontal FOV would be 85, which would give an average PPD of 43.
@@mikeyr5275 i remember the overlap is really good, as good as Pico4 if not more, so I will put it above 90. Plus some degree of left and right, that gives one eye fov 100+. To get 34PPD is 3660/34 = 107.6 degree. That not too far off.
For anyone wondering. Apple aims for 120ppd in all of their retina devices. It's where most generally become unable to see details between degree of vision. The apple vision pro being below 60ppd means we have a long way to go
I mean😂 there are pieces you can fix. The only thing you can't is the plastic front cause let's be real, even if you wanted to repair something behind the glass, there's no way you could do it. Best we could have expected is to replace the straps and eye seal, which we got, as well as the plastic front, which we did not get. I don't think it is reasonable to be expecting to repair any internals like the M2 chip or anything like that
@@derickd6150 why shouldn't we expect to be able to replace what's probably one of the most expensive components in the device? The board that M2 and R1 chips are sitting on is fairly modular, nothing is soldered. Yes, there are lots of screws and connectors to keep track of, but other than that the only reason why internals can't be easily replaced is that Apple decided to glue down the front glass/display. I expect that adhesive is needed to mount a smartphone front glass because of IP ratings and the device being constantly squeezed/bent in people's pockets, but Vision Pro is neither water-resistant nor expected to be constantly bent so the decision to glue everything down is just frustrating.
I know it was provisional, but that 4/10 score was something I really wasn't expecting. If the glass was easier to come apart I could understand it but, looking at all the teardown vids posted online it looks like a maze!
@@Jallen262 It's because everything is super modular, the spacial speakers, the head bands, the light seals, battery, etc. Those are the most likely things to die or need replacing. The front glass is as repairable is more replaceable than most front glass units on any phone since you just need to pop off the glass cover and pop on another.
@@Jallen262 dude, the more modular it is the easier it is to fix. The battery on most consumer devices is super hard to replace and look the battery is not even in the device reducing the need to open it.
i mean the things normal ppl would like to replace in case of damage or are all easily replaceable without even opening the device. and a lot is still rather accessible through the back which is just clipped in. so even motors and displays look rather accessible. the only things that are difficult to replace are the front glass and screen and just the complexity of the inner construction. which tbh is hard to make easily accessible considering the sheer amount of different sensors
The Vision Pro battery pack can be opened without damaging the external metal. There’s a RU-vidr named “phone repair guru” who was able to open the battery pack without damaging the case using acetone to dissolve one layer of adhesive and then using a pry tool to open it
@@kjeldkaj They were doing their own testing. Letting them know about more ways of trying to solve these issues is huge in the repair community so that comment is the best way to let them know about it.
Yeah we broke the battery. Our HMD went back together in working order though so yeah. www.ifixit.com/News/90409/vision-pro-teardown-part-2-whats-the-display-resolution
The most common definition for "4K" is 3840*2160, the resolution of "4K" TVs or of "4K" movies, also known as Ultra HD. It's four times the pixels of Full HD. If the Apple Vision has 3660*3200 pixels per eye, that's not the same resolution as 4K, but overall it amounts to even more pixels, 29% more. Though it should be noted that these pixels are distributed across the whole field of view, and some will also be cut off at the edges or possibly lost to software image distortions to balance out lens distortions. So if you watch a 4K movie in the Apple Vision Pro, you are only using a fraction of the FOV and of the pixels available in the display, which means the movie will very likely render with (significantly?) less than 4K resolution.
Yeah it will be more like 1080p if you watch it how directors (THX standard) optimize viewing angle of films, similar to sitting in the middle of movie theater.
Resolution doesn’t matter, pixel density and pixels per degree matter. Regardless, even the low resolution of the quest 3 (2208p) looks perfectly fine so I expect the Vision Pro with a higher resolution and smaller fov to be incredibly sharp
Are Apple suggesting that it’s like watching 8k because they say it’s 4k in each eye? After watching this I’m gathering that you don’t add the two together..
@@fayenotfayehow resolution doesn’t matter. Whole field of view is covered by just 3600x3200 pixels so even if content window covers 50% of total FOV, actual resolution is even less than 1080p and rest of pixels are used by pass through.
They should get rid of the front eye display thing. Nobody who looks at someone wearing a VR headset cares about seeing their eyes. Apple could have saved weight and money by not doing that at all.
@@mickey_mousey considering the displays are $700 for the pair considering the bulk pricing they got for that price to be real, is insane to only be 3500 when something closer in spec to it is $5000 from varjo, not a fan of the apple vision pro but the tech they managed to use for the price is insane.
Front glass is not scratch resistance, lenses can be scratched if not cleaned properly, in the future you could have issues with internal parts such as the displays or cameras. Rubber membrane under cloth around eye shield could deteriorate over time.
@@pdavis2207 coz you mention this, there were some leak about the R&D of this thing cost some people turn blind and of course it was hidden until someone leak it
2:39 grain has nothing to do with insufficient resolution, but rather with the input cameras exposing for light. A higher resolution leads to more noise, not less.
Please get your facts straight - the resolution you're quoting for "4k" is DCI 4k, which is not the same as UHD 4k - and has a matching lower resolution that differs similarly from 1080p (DCI 2k, 2048x1080) (there is no sub-2k DCI resolution). The illustration you're using here is this completely misleading, as you're comparing across several different resolution standards and aspect ratios (DCI is approx. 17:9 rather than the broadcast/TV 16:9). So while you're technically correct in saying that TVs aren't 4k in that DCI 4k was the first 4k standard, UHD 4k is the de facto broadcast and home display standard, and while calling it 'UHD' is more correct than '4k', for consumer usage those are synonyms. There were no consumer-facing DCI 2k TVs either, but that doesn't make them any less full HD TVs. So if you're going to be "well, technically"-ing things, at least be consistent about how you're doing it.
4:46 Not necessarily. That 35.9Wh rating is at 13V while the 46.08Wh is rated at 3.87V. Boosting the voltage induces more heat loss, therefore the lower rating.
I don't think they're boosting the voltage. I'm pretty sure the 13V figure is the max voltage expected from the three cells wired series. It looks like Apple is using high voltage cells which can charge to over 4.3V each cell. Note the "nominal" voltage isn't the same as "max" voltage. The 3.87V figure on the cell is nominal voltage not max voltage.
It's funny how Apple gets called out for using "not real 4K" but on for example the Sony Xperia 1s no one every said that besides those also not using real 4K 😂 3660 x 3200 is still quite a huge amount and matches what I thought about previously which was just a different aspect ratio based on Apples marketing materials. Those made it look like the panels are ~4:3 so I thought it could be 3840 x 2880. what's crazy to me is the ppi. 3300 ppi with this resolution while the Quest 3 for example only has 1200 ppi. So the Vision Pro uses MUCH smaller displays which is interesting
Apple ran that narrative by saying "4K TV for each eye". All we did was point out that it's not 4K and it doesn't matter because it's all about Pixel Per Degrees. We also praised the amazing pixel density and pointed out how much higher the PPD and PPI is when compared to anything else. www.ifixit.com/News/90409/vision-pro-teardown-part-2-whats-the-display-resolution
I love how people are claiming you can watch movies in 4K on this but totally ignore the fact that you're never going to use the whole width of the displays. To watch a movie at a comfortable screen size you're more likely to end up watching at around 2K, so regular HD.
As someone who loves to fix their own devices, your videos are always interesting. I enjoyed the details and highlights for the devices. Repairing this device would seem like a nightmare, but the removable cable on the battery pack, the removable head straps all seem in good faith. Win some, lose some. I saw @AppleTrack doing an impromptu durability test and he broke the speaker bands first, but glad to see those are replaceable. Thanks iFixit Team!
4 out of 10 sounds generous, considering all i can replace and fix is the headband with speakers, and the face cushion... everything else is pretty much glues and sealed in a way even the most experienced repair engineer will likely damage the device
Just imagine the resolution of the screens in the future with micro pixel fabrication. Those pixels are dang so tiny compared to the iPhone pixels. Mind blowing!
I guess because calibration requires someone else to deal with it? I don't think this applies with paired parts like screens or charging cables (maybe battery due a safety concern) but not to the point of it become unusable
For what? Apple to make more money? I couldn’t agree more 😂 Please just buy an off brand battery pack instead of this grubby company -Another Apple user
Actual 4K resolution as per its invention was listed as 4096x2160 which is 17:9 vs todays slightly lesser resolution of 3840x2160 which is a 16:9 aspect ratio. That being said both resolutions are still 8 million or so pixels in terms of total detail. What’s real interesting is each panel in Vision Pro is 10.75 million pixels ( 3360x3200 ) which means combined you have greater resolution than 6K panel, but not quite 8k ( 6K is 18 million pixels, Vision Pro combined is 21.5 million, and 8K is 33 million ).
Honestly, it's way to early to see where this product goes to really determine if it's repairable. I don't know if it could be made more repairable without making it heavier, but it clearly could pull the same trick for the light shield with the front screen. But I also expect future models based on M4 might actually forgo the front screen entirely. Sure it's kinda neat but it's also of no actual benefit to the user and burns battery life.
The dig on Apple's 4k claims is really silly. The 4k number is very marginally lower than 4k tvs in one dimension, but far greater in another dimension.
I don't think Apple was really being crafting here at all. With stereo displays, depending on how they process and render the images to both eyes, the perceived resolution or image fidelity could be significantly better than 4k. This "well TECHNICALLY" point they are making is silly, like I said. @@Xll148
"The pack is also outputting more voltage than a normal usb c pack to keep up with the Vision Pro's precossings demands..." Sry to say but that is a misunderstanding of why Apple used higher output voltage battery pack than lets say the typical 5v usb power. The reason they have gone with higher output voltage is because of how electricity works. If wan't to keep the power loss due to transfering (dc) power you step up the voltage.(and therefore keeping the current low) That's also the reason why Notebooks run on +20v.
It seems all of the important internals are serialised. Even if you use original replacement parts you are locked out by Apple's software. 4 out of 10 is way too generous.
Would it be possible to reposition the insides while still getting the same experience? For example, moving the cameras to different locations on the headset or moving the chips to the back of the head.
I feel like this device is reasonably repairable considering Apple’s love for that kind of design and all. The modular approach and swappable batteries all seem like a big step up from even the MacBooks. Frankly I don’t think there’d be a way to improve the device itself’s repairability beyond the entry.
can you help to take an image of the RGB camera sensor (pixel size, resolution, etc)? or if needed, we have high magnification optical microscope (~$120k) that can characterize the CMOS sensor. If you ship one of the RGB camera to us, I can give you the images after inspecting.
Man Apple haters will complain over nothing. Why can’t we all agree that’s this is a great headset. It’s good for the industry bc no other companies will try to eat some of apples pie by making more affordable and more feature pack vr headsets .
you are literally on a tech repair channel that rates products based on repairability. apple just loves glue and propriotary nonsense. brand loyalty is literally why tech is going downhill so fast in recent years
I don't understand. if the glass has a cable all the time connecting to the battery unit, the processor board should be there also.... also , an oled display just to barely show part of the face is a design flaw..
When you film the display you may get aliases with the spatial sampling frequency of the sensor, in addition the samples not being simultaneous, I.e. no global shutter, neither in the display chip nor in the camera sensor.
You are nit-picking about 4K there. By broadcast standard, 4K is usually in reference to a 16:9 aspect ratio, whereas Apple's resolution here is closer to a 1:1. You are right, it's not 4K, it's actually more.
Sony has an even more advanced microOLED chip: 3840x3552 on a slightly smaller chip (1.3"), pixel pitch 6.3um. They cost $1000 each. People still wondering why AVP is expensive?
Hardware need to compute 4k+ image twice at the same to make 3d image, try to play vr graphically advanced game on mac with stable 90fps this wil burn mac And the same thing vision pro need to do while you use them Remember in vr you need render 4k or more resolution image twice at the same time in 90 or 120fps to make it looks good and smooth
I know that the bar is really low, thanks to apple themselves, but 4/10 seems a bit high - teardown expert described it as personal everest, removing glass without scorching fabric seems very hard, and the fact that you need to use hammer and chisel, on a device that costs 3500, apple will refuse to repair or provide parts. Why would it matter if the issues caused by lack of calibration instead of intentional pairing if end result is the same - apple does not provide calibration software, so you can't swap parts.
It is beyond a 4k resolution per eye btw. (3660x3200)-(3860x2160)=3,374,400, it has 3,374,400 more pixels than a standard 4k display. and over 4,300,800 pixels than a 4k television PER EYE! (3660x3200)-(3860x1920). It is wrong for iFixIt to say it is not 4k. I agree it is not in the 16:9 aspect ratio, but who cares.
Also if you are gonna use tethered headset then why not make the pack bigger with all of the processing power in it to make the headset even lighter. And then use even more powerful graphics...
It's Apple. They don't want any part of the device to seem bulky; this external device you're suggesting would be big, heavy, and hot. It would need a fan and openings for heat dissipation, so it couldn't even go in a pocket, and would be remain permanently visible.
thanks. so the micro oled displays isn't even close to anything that is already selling on the market. I just want the displays to a product similar to an Xreal or Rokid
Do we know the render resolution output of the vision pro? (In every vr headset, to get the sharpest image that the panel allows, you need to render the image about 1,4x higher than the panel resolution to compensate for the distortion profile dictated by the lenses.)
i would like you guys to weigh the various components.. in particular the front glass panel and the lenticular lens and the front-facing screen. The reason is I would like to know how much weight those components add to the overall weight of the headset. I would also like to know if the headset will still work if you unplug the front-facing screen and how much energy it draws. I suspect the front-facing screen is drawing about 10-15 Watt hours.. and if so.. removing that could potentially double the number of hours the headset could operate with the battery?
