HomePod room sensing: how it tunes bass — and the night-mode myth
At first glance, homepod room sensing audio tuning have a straightforward answer, but the useful answer depends on the hidden…
Read More
Inside Apple Watch SpO2: how red and infrared LEDs separate
The back-crystal sensor on an Apple Watch packs green, red, and infrared LEDs alongside a photodiode array.
Read More
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…
Read More
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…
Read More
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…
Read More
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…
Read More
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…
Read More
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…
Read More
iOS 18 Lock Screen Customization: Hidden Tricks Beyond Camera and Flashlight
iOS 18 quietly delivered the biggest lock screen overhaul since iOS 16 introduced the photo-stack widgets, and most of the…
Read More
How to Fix AirPods Pro Crackling Noise: A Step-by-Step Guide
I was three hours deep into debugging a nasty race condition in a Go microservice, completely in the zone, when…
Read More