After the whirlwind of workforce exercise that was our initial Vision Pro teardown, we’ve been digging a lot, a lot deeper into these twin shows, the multitude of sensors, the lenses, and that beautifully-overengineered battery pack. And to not spoil the shock, however we’ve discovered that these twin shows are totally unbelievable: You possibly can match greater than 50 Imaginative and prescient Professional pixels into the house of a single iPhone 15 Professional pixel. Sure, you learn that proper.


Apple says that the Imaginative and prescient Professional’s shows supply “extra pixels than a 4K TV for every eye.”  However what precisely does 4K, or any Okay, imply this near your eyeballs? Your telephone has a a lot larger pixel density than your TV, for instance, and but you can’t see the pixels on both in regular use. So let’s get into the main points, guided by our senior tech author Arthur Shi

First up, let’s speak concerning the two measurements that matter. Pixels per inch, or PPI, is what it feels like—the variety of pixels crammed right into a given space of the display screen. It’s an absolute measure, primarily based on the bodily properties of the machine.

Then there are pixels per diploma (PPD). PPD takes under consideration your distance from the display screen. The nearer your eyes get to the display screen, the simpler it’s so that you can make out particular person pixels, which is why your telephone’s display screen wants the next decision than your TV, and why a film on the theater appears advantageous, although it might solely be 2K. So what does that imply for the Imaginative and prescient Professional?

Pixels Per Inch, The place Dimension Issues

Every lens meeting has a pancake lens array, a housing with embedded eye-tracking cameras, and a show panel. The show panels are most definitely made by Sony—probably a customized model of their microOLED displays

The show doesn’t gentle up from edge to edge, so we’re solely counting the lit portion of every panel. The lit sensor space measures round 27.5 mm vast by 24 mm excessive, or about one inch by one inch. Utilizing an Evident Scientific DSX1000 microscope, we measured the pixels at 7.5 μm (the size of a red blood cell). Every pixel is roughly a sq.: pink and inexperienced sub-pixels stacked on prime of one another, with a double-sized blue sub-pixel on the aspect. With these measurements, the lit space totals 3660 px by 3200 px. That equates to 12,078,000 pixels smushed into 0.98 sq. inches!

However the corners are reduce off, in order that reduces the pixel rely even additional. It’s asymmetrical, with triangular nook cut-off areas of 6.95 mm2, 11.52 mm2, 9.9 mm2, and 10.15 mm2, totaling 38.52 mm of deactivated display screen. Examine that to the whole space of round 660 mm2, and we see that the corners reduce off 5.3% of the whole, leaving 11,437,866 seen pixels per panel. Counting each panels and a margin of error on our aspect, that’s the 23,000,000 pixels Apple claims.

Sensor with screen-captured picture superimposed to display the lit space.

Divide these pixels by the size/width, and you’ll calculate the PPI (pixels per inch), which as talked about is a measurement of pixel density. The Imaginative and prescient Professional is available in at a surprising 3,386 PPI. This, says Arthur, “is AMAZING PPI!” (his caps, not mine).

That many pixels should make the Imaginative and prescient Professional 4K, proper? The horizontal decision on the panel doesn’t fairly make it to the consumer 4K UHD standard of three,840 pixels vast. In brief, it is a severely high-res show. However it’s not technically 4K, which is why Apple didn’t merely name these 4K panels. 

It’s definitely the highest-density show that we’ve ever seen. For comparability, the iPhone 15 Professional Max has round 460 PPI, which implies you possibly can match ~54 Imaginative and prescient Professional pixels right into a single iPhone pixel. 

Or how concerning the 12.9-inch iPad Professional? That has 264 PPI, making the Imaginative and prescient Professional 12.8x finer. For a direct comparability to a different VR headset, the HTC Vive Professional has ~950 PPI (4896 px × 2448 px), lower than a third of the Imaginative and prescient Professional, and the Meta Quest 3 has ~1218 PPI. Don’t fear, it will get weirder. 

Pixels Per Diploma: It’s All In regards to the Angle

A excessive pixel density alone doesn’t assure an incredible visible decision. Take into account a 65″ 4K TV, which has a “paltry” 68 PPI. However your 4K film nonetheless appears nice on it. Why? Since you’re sitting fairly far-off from the TV, successfully shrinking all of the pixels all the way down to a small space. The additional away you sit, the upper the PPI scales. Consider how the Jumbotron at your native sports activities venue doesn’t look pixelated if you’re sitting throughout the stadium.

Due to this, VR engineers like to make use of a barely fancier metric to measure show “goodness”: angular decision, measured in pixels per degree, or PPD. That is the variety of horizontal pixels per diploma of viewing angle, and it lets us evaluate between shows with totally different resolutions, designed to be seen at totally different distances.

However even that isn’t the entire story, for a wide range of causes:

  • The PPD modifications from the sting of the display screen vs. the middle.
  • Lenses deliberately distort and tweak the PPDs in wonky methods.
  • Stereoscopic views have an effect on what number of “pixels” are seen, muddying calculations.
The Imaginative and prescient Professional’s pancake lens distorts the show, complicating PPD calculations.

With a tough measurement of 100° FOV (Area of View), we estimate the Imaginative and prescient Professional to have a mean of 34 PPD. Compared, a 65″ 4K TV seen 6.5 ft away is 95 common PPD, and the iPhone 15 Professional Max held 1 foot away is 94 common PPD. Despite the fact that the pixel density and bodily dimensions are drastically totally different between the iPhone and the 65” TV, they find yourself having related PPD merely due to how they’re seen. 

Tl;dr: The Imaginative and prescient Professional could have an ultra-high decision (PPI) show, however as a result of it’s so near the attention, it has low angular decision. 

As a remaining instance, pal of iFixit Karl Guttag has a blog post explaining why utilizing the Imaginative and prescient Professional as a substitute for a superb monitor is “ridiculous.” The gist is that if you beam the Mac’s output into the Imaginative and prescient Professional, and droop it within the air in entrance of you, you’re solely utilizing a small portion of the obtainable pixels. Even when the Imaginative and prescient Professional’s shows have been actually 4K, you’d solely be utilizing a small central part, with the remainder of the pixels used to point out the encircling room.

This, says Karl, makes for a digital Mac show with low sufficient PPD to see particular person pixels—not fairly the usual desktop show expertise. So whereas you’ll completely have the ability to use your Mac in your digital world, you’ll choose an precise 4K or 5K monitor for advantageous work.

Then once more, even when you shell out 200 bucks for the large carrying case, the Imaginative and prescient Professional is far more transportable than an Apple Studio Show.


Carrying glasses underneath your VR headset is lower than ideally suited—Apple’s reply is so as to add accent lenses inside, for the Imaginative and prescient Professional, these lenses are made by famous German optics specialist ZEISS and snap into place magnetically.

Every lens comes with a pairing code, though this isn’t fairly the identical sort of parts pairing we normally cope with. These codes don’t lock a element to a single machine. If you wish to take away your prescription lens inserts from your personal Imaginative and prescient Professional and drop them right into a pal’s unit, you possibly can. You’ll simply need to pair them with the brand new headset by inputting the identical code. The Imaginative and prescient Professional they’re being swapped into has to know the prescription of these lenses and calibrate accordingly, therefore the little QR-type code you scan by it in the course of the setup course of. 

Nonetheless, it is elements pairing in {that a} secret handshake code is required to put in lenses—giving ZEISS a stable monopoly, at the least for now. It additionally implies that any typos or transport snafus may render your new lenses useless, at the least quickly.

You’d assume that submitting a prescription can be sufficient to get the Imaginative and prescient Professional calibrated together with your lenses—even when Apple is doing some fancy footwork—however with out transparency, we will’t ensure.

The Imaginative and prescient Professional has one other small drawback for spectacles wearers. Opposite to some stories, Apple says that corrective lenses are available for many situations, together with astigmatism (which we weren’t positive about in part one), and so they additionally supply bifocals, and progressives. However when you’ve got a prism worth included in your prescription, you’re out of luck. Prism correction is used to correct for diplopia, or double imaginative and prescient. The best strategy to see in case your imaginative and prescient prescription is supported is to make use of ZEISS’s online tool

The theme of this machine seems to be that well-tailored consolation is pretty easy to attain, so long as you undergo the official channels. 


By Apple logic, a fancy machine requires an equally advanced battery resolution. The hefty battery financial institution—$200 from Apple if you wish to purchase it individually—is each tremendous easy and hilariously over-engineered.

Wanting like a bulked-up first-gen iPhone, the case is milled out of a single chunk of aluminum, and the lid snaps into place with agency perimeter clips, leaving little to no seam for us to pry at. We would have liked a hammer and chisel to open it up! Adhesive additionally traces the lid, simply to ensure you get the message: this pack will not be designed to be opened.

As for the battery cells themselves, Apple’s utilizing three iPhone-battery-sized packs stacked atop one another, related in collection. We pulled out an iPhone 15 Plus battery to check and located that it’s ever-so-slightly smaller in space whereas being a tad thicker.

The cells in our Imaginative and prescient Professional pack are listed at 15.36 Wh a bit, suggesting a 46.08 Wh complete functionality. That doesn’t fairly observe with the 35.9 Wh score etched on the pack’s (beautiful) aluminum enclosure. This, at first look, appears like Apple’s undershooting the Watt-hour score by over 20 %. Apple’s no stranger to battery life debacles, so there’s an opportunity they’re purposefully undercharging the cells for longevity—the identical purpose they simply launched an 80% charging restrict on the iPhone 15 Professional. Or maybe they’re calculating Wh in a different way, accounting for thermal losses, or one thing else.

Left: One in every of three battery cells with manufacturing facility 15.36 Wh scores. Proper: Battery pack labeled 35.9 Wh—10 Wh lower than anticipated.

Apple is clearly obsessive over the person expertise with this battery, packing in temperature sensors and an accelerometer (so it shows the cost LED if you maintain it up, and may even detect if you find yourself carrying the pack). In the event you’re placing a battery in your pocket for 2 hours straight, then you definitely actually, actually don’t need it to get sizzling.

The pack can also be outputting a non-USB-standard 13 volts to maintain up with the Imaginative and prescient Professional’s processing calls for, which is one clarification for the bespoke “huge Lightning” cable—so that you don’t unintentionally plug different units in and fry them. It additionally explains why you possibly can’t simply plug it straight right into a USB-C battery pack. The truth is, the Imaginative and prescient Professional’s battery pack has sufficient tech to behave as an uninterruptible energy provide, offering it particular, clear energy even when plugged into the wall.

All in all, it looks like Apple is taking the dangers of carrying a battery actually, actually severely, slightly than making an attempt to pack in as a lot juice as doable. That is additionally an incredible illustration of why simply swappable batteries are a good suggestion—you don’t have to go wild with the Watt-hours when you can simply seize a spare, even when it’s a $200 spare.

Chip ID

Apple highlighted the Imaginative and prescient Professional’s M2 chip and the brand new R1 chip of their announcement. However, what about the remaining? And did you hear concerning the abnormally advanced charging board within the battery pack? 

We acquired you coated! Head over here to check out all the chips in the Vision Pro.


Apple’s largest benefit over different headset makers comes within the type of sensors, sort of. Sure, anybody can slap a bunch of cameras, a LiDAR scanner, and all that different stuff right into a headset, however Apple’s sensors have a secret weapon: years of expertise analyzing, deciphering, and fusing advanced sensor knowledge and a number of iterations of sensor design.

Keep in mind when Apple added LiDAR to the iPhone 12 Professional and iPad Professional in 2020? Sure, it makes for better low-light photos, distance measurements, and accessibility options for the visually impaired. However we have now a hunch that Apple had one other motive: The LiDAR sensor within the iPad Professional let Apple check AR options in a fairly low-stakes setting, placing the {hardware} into mass manufacturing, gaining each invaluable experience and person suggestions. 

The front-facing Face ID TrueDepth camera is one other nice instance of Apple’s sensor tech. The Face ID array has a laser that initiatives infrared dots onto your face, a flood illuminator that bathes your face in IR, and an IR digicam that may see all of it. That is processed to create a 3D map of your face. Apple acquired so good at this that it makes use of the Face ID array to scan your ears, so as to create a customized 3D mannequin that tailors AirPods’ spatial audio to your ear form.

The outcome? Room mapping with out the necessity for guardrails. Face mapping for the (admittedly considerably creepy) Memoji V2 aka Persona. And no want for handheld controllers.

One other Apple specialty is accelerometers—and the interpretation thereof. You’ll find them within the iPhone, within the Apple Watch (the place it might probably detect whether or not you could have fallen and name emergency providers), and even within the unique HomePod. When it detects that it has been moved, the HomePod re-listens to the room and recalibrates its audio accordingly. The AirPods have accelerometers to detect your tap-commands. All of this requires superior interpretation of sensor knowledge, which Apple has gotten good at yr after yr. 

We may be taking a better take a look at these sensors, nevertheless it’s not the {hardware} that basically issues on this case. It’s the way in which Apple has honed the manufacturing and reliability of those sensors over time and built-in them with software program designed to take advantage of probably the most from them.


Arising with a repairability rating for the Imaginative and prescient Professional is simply as difficult as calculating the subjective decision of the shows. 

Imaginative and prescient Execs

On the one hand, there’s so much to love right here. The battery is modular, so it’s trivial to swap in a totally charged one, or exchange a flagging unit after a yr or two of laborious use—even when you can’t truly hot-swap the battery with out powering down the headset. 

Equally modular are the aspect straps. Granted, these include audio system which can be just about not possible to excavate, however the mixed meeting is modular and pops off with a SIM-card software. The ability port is built-in into one of many band assemblies, so it’s additionally semi-modular. We additionally just like the easy-to-fit lens inserts and the magnetically hooked up gentle shields.

“The super-modularity—to a stage the place it’s much less of a element and extra of a function, like totally different bands—makes it in order that even Apple has how-to’s on its website,” says iFixit repairability engineer Carsten Frauenheim.

We’re actually relieved to see that all the elements that contact your pores and skin are simply detachable, together with the sunshine seal and lightweight seal cushion. When we score for repairability, we search for quick access to consumable and simply breakable elements. Notably, the optics, screens, and transferring elements for the inter-pupillary distance adjustment are on the eye-side versus behind the delicate entrance glass. Prying up the material layer from its clips to entry the adjustment is significantly much less dangerous than making an attempt to take away the costly 3D glass in a single go.

Imaginative and prescient Cons

However alternatively, attending to the entrance cameras and sensors—or something behind the entrance glass—is an actual headache. That tumbler cowl wants a number of cautious finessing with a warmth gun and a number of prying instruments to take away in a single piece. Positive, when you kill the EyeSight whereas making an attempt to interrupt in, it’s not the top of the world. The actual hazard is that cracking the glass may render the sensors behind it ineffective, just by blocking their view.

Our restore scoring closely weights elements just like the display screen and battery which can be crucial for the operate of the machine. It’s laborious to argue that the EyeSight show is a vital element. However the exterior sensors are important, and when you break the glass and obscure them, then the machine will cease functioning accurately.

The Competitors

So how does the Apple Imaginative and prescient Professional evaluate on the repairability scale to head-mounted shows (HMDs) from opponents? Arguably an important comparability is to Meta’s Quest 2 and Quest 3 headsets, which collectively dominate the VR and AR (collectively XR) markets with a roughly 70% market share. 

The reply to that query, together with virtually something associated to XR {hardware}, is that it’s difficult. 

Let’s take the Quest 2 and Quest 3 as examples. Each are designed with a front-loaded headset secured by a replaceable harness, very similar to the Imaginative and prescient Professional. What differentiates Meta’s headsets from most others is that it’s additionally a standalone machine, in contrast to the Valve Index, HTC Vive, and PS VR2. However that’s the place the similarities between the Quest 2 & 3 and the Imaginative and prescient Professional finish.

The place the Imaginative and prescient Professional has an exterior battery pack, each the Quest 2 and Quest 3 have their lithium polymer batteries buried contained in the machine, to the purpose that it’s one of many final stuff you’d take away in a highly complex restore. A battery substitute is the most definitely and customary restore, and in that class, the Imaginative and prescient Professional is a transparent winner. That’s as a result of the Imaginative and prescient Professional’s battery puck, whereas an integral a part of the in any other case unpowered machine, is an exterior element.

Quest 2 Headset Battery Alternative Information: Step 59 and you continue to can’t see the battery.

The place the Imaginative and prescient Professional fails is the fragility of the entrance glass, mixed with the complexity of the Consumer Interface (UI). Think about you journey over the non-MagSafe battery cable and the headset tumbles onto your equally lovely hardwood ground, shattering the glass EyeSight cowl.

Meta Quest Professional and Meta Quest 3 headsets.

Even when each sensor continues to be practical, they are going to be blinded. When the exterior cameras’, LiDAR sensor’s, and IR emitters’ line of sight is interrupted by cracked glass, your palms received’t observe accurately. Since there aren’t any controllers (in contrast to most different HMDs), anybody with a damaged entrance glass should lean on accessibility features like voice management.

The Quest 2 and Quest 3 fare significantly better on sturdiness. For one, the outside shell is product of plastic, which is way much less fragile than glass. The cameras are recessed in their very own notch on the case, thereby being a very separate module from the remainder of the HMD, permitting for simpler restore and substitute. 

Much like the Imaginative and prescient Professional, the Quest Pro buries its cameras and sensors underneath the entrance plastic, however that entrance plastic is held in place by clips that merely pop off, permitting for straightforward and low-cost repairs.

The Rating

After we give a repairability rating, we decide which elements to guage primarily based on what we’re seeing in the remainder of the product class. However XR {hardware} is so bleeding edge that every part from the outside construct to the fundamental technique of navigation nonetheless varies wildly from machine to machine and era to era. 

For instance, we spent a very long time speaking about methods to deal with the Imaginative and prescient Professional’s lack of controllers. For different HMDs, we’ve thought of how simply replaceable the controller batteries and buttons can be. Ought to we anticipate that fewer XR units can have controllers going ahead? The Quest 2 continues to be the most typical VR headset in the marketplace and can doubtless stay so for a number of years, owing to its accessible worth level. However, the Imaginative and prescient Professional (and its intuitive UI) is more likely to set the tone for future headsets. 

This presents a problem for scoring on the repairability scale, as marrying the present “low-tech” {hardware} of right this moment with the advanced factory-calibrated sensors of tomorrow requires a compromise. On the one hand, we should think about the dominant {hardware} presently out there, whereas making certain we don’t unfairly penalize the intuitive know-how of tomorrow’s HMDs.

Okay, we’re carried out philosophizing for now—so, what does this expensive piece of ultra-dense tech earn repair-wise? Whereas we don’t know sufficient to use a concrete rating, we’re snug assigning a provisional 4/10 on the repairability scale

The underside line? It’s wild to take a look at an Apple machine this advanced and see a replaceable battery. Sure, it’s possibly nearer to an influence provide, and sure, it’s costly. However when it comes all the way down to it, Apple checked out a tool and supposed for elements to get replaced. That’s fairly main. The bar is actually that low, of us—there are nonetheless HMDs with out replaceable pads. Will we want that the battery pack had replaceable cells? After all. Is this gorgeous spectacular for Apple’s first foray? Additionally sure.

Visions of the Future

We’ve but to finish testing on many features. At the moment, iFixit engineering intern Chayton Ritter has Apple’s proprietary battery cable splayed out on a breadboard, and is making an attempt to find out what kind of digital handshakes are required to make the Imaginative and prescient Professional settle for battery packs. 

And we’ve additionally been busy swapping inner elements between two headsets to test for the presence of iFixit’s nemesis—parts-pairing. Nothing conclusive to this point, however we’d love to listen to your experiences whereas we examine.

Whereas the way forward for XR could not but be right here, we predict that’s a superb factor. By being acutely aware of the tech we purchase, we encourage producers to make higher tech. By holding producers accountable for what they create, we will be sure that repairability is taken into account at an early stage of the design course of, and integrated wherever doable. Our hope is that, by the point this stuff get shrunken right into a pair of eyeglasses, repairability received’t be one thing tacked on on the finish, however a basic design tenet. If face goggles actually are the way forward for computing, then we have to get this proper from the very starting.

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