Further teardowns from iFixit reveal that while the Apple Vision Pro doesn't put a 4K display in front of every eye, it's close, with the device's extremely high pixel density. In its first teardown of the Apple Vision Pro, iFixit shows how EyeSight uses multiple displays on the front of the device. In the second teardown, the company examined the main display, and this time it was enough to rate the device's repairability 4 out of 10.
iFixit says: "The specific type of panels used here are called micro-OLED panels, but they also go by another name, silicon-based OLEDs. TSMC provides the silicon substrate on which Sony grows the micro-OLED structures."
Regarding Apple’s claim that Apple Vision Pro’s two displays have 23 million pixels, iFixit denied it.
"You may have heard the explanation that each panel has more pixels than a 4K TV," the company said. "This is a clever way of marketing - they successfully used the 4K wording without claiming these panels can deliver 4K resolution."
Through a microscope, iFixit determined that each pixel of the display is about 7.5 microns. The display size is approximately 27.5mm x 24mm.
iFixit said: "Dividing the size by [pixel size], we find that the lit area is approximately 3660x3200 pixels, which is equivalent to 12.1 million lit pixels. By commercial standards, these values do not meet the 4K definition, but in fact, 4K TV does not meet the 4K definition. "
A 4K TV's display is typically 3840x2160 pixels, so Apple Vision Pro is close to 4K in one dimension and exceeds 4K in another.
Ultimately, iFixit calculated that the Apple Vision Pro display has about 3,380 pixels per inch.
"You can fit 50 of these pixels into an iPhone pixel. [So] 170 of these pixels could fit into a 12.9-inch iPad Pro pixel, and 2,500 of these pixels could fit into a 65-inch 4K TV."
iFixit believes that what is more important is pixels per degree (PPD), which is "the number of pixels observable per degree of field of view." "We calculated that the Apple Vision Pro has an average PPD of approximately 34 pixels based on a 100-degree field of view, which appears to be accurate compared to the Quest 3 in a very simple test. "The Apple Vision Pro has a slightly narrower field of view compared to the Quest 3, but the image quality is significantly higher."
In this teardown, iFixit also looked at the VisionPro battery, calling it "simple but over-engineered." It's made of three stacked 15.36-watt-hour iPhone-sized batteries.
The total power consumption of the three batteries is 46.08 watt hours, but the battery description says 35.9 watt hours. iFixit said: "At first glance, this looks like Apple is underestimating the watt-hour rating by more than 20%. But it is possible that they are deliberately undercharging the cells in this battery pack, just like they just released the iPhone 15 Pro with an 80% charge limit."
"The [battery] pack also outputs a higher voltage than a regular USB-C battery pack to meet the high processing demands of the Vision Pro," the company continues, "which is why they use a custom-made, similar-sized Lightning cable so users don't accidentally plug other devices in and fry them."
iFixit gave the final repairability score a 4 out of 10, noting that the battery pack cannot be opened without damage. However, the components of the headset itself are modular and therefore can be replaced.