The back-crystal sensor on an Apple Watch packs green, red, and infrared LEDs alongside a photodiode array.
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Inside Apple Watch ECG: how a single Lead I electrode becomes an
Inside Apple Watch ECG: how a single Lead I electrode becomes an FDA-cleared rhythm strip The Apple Watch ECG records…
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Apple Pencil Pro vs Apple Pencil USB-C on iPad mini 7: Barrel Roll Compared
By Zeina Haddad The decision between Apple Pencil Pro ($129) and Apple Pencil USB-C ($79) for the iPad mini 7…
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Inside AirPods Pro’s Head-Tracking Pipeline: How H2 Calculates Spatial Audio Position
In this post: What sensors does the H2 chip actually read? · How does orientation data become a change in…
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AirPods Max 2 Firmware 6E188 Adds USB-C Lossless at 24bit/48kHz Finally
Dated: March 22, 2026 — AirPods Max 2 firmware 6E188 A recent firmware update finally pulls the AirPods Max 2…
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Ultra 3 Depth App Freezes at 2.1m on watchOS 26.2 Build 24S320 Until Water Lock Cycles
On watchOS 26.2 build 24S320, the stock Depth app on Apple Watch Ultra 3 stops updating its depth readout the…
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Vision Pro 2 Battery Swap Teardown Shows Apple’s New Pentalobe Trap
The external battery pack is still the part of the Vision Pro that dies first, and with the second-generation headset…
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The iPhone Air 2 Wait Just Got Longer: My Honest Take
The Reality Check We Didn't Want I’m sitting here looking at my charging cable for the third time today. If…
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The Next Frontier in Performance: Why Advanced Cooling is Set to Redefine the Apple Ecosystem
The relentless pursuit of performance has been the driving force behind Apple's innovation for decades. From the first iPod to…
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The iPhone as a Production Studio: How Mobile Editing is Reshaping the Creator Economy
The evolution of the smartphone has been one of the most transformative technological shifts of the 21st century. Once a…
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