Apple products have always been known for their quality design and attention to detail.
Many of these details go unnoticed by the average Apple user or are useful only to a relative handful of people who use the product.
Some features are handy while others are purely cosmetic, but Apple included them anyway.
Here are the best of these little design flourishes.
A "breathing" sleep light:

a patent dating back to 2002 for a "Breathing Status LED Indicator." The patent describes a "blinking effect of the sleep-mode indicator [that] mimics the rhythm of breathing which is psychologically appealing."
A smart fan that listens:

Watch the light's travel in Maps:

Smart caps:

The half-mast favicon:

only half of the Apple icon on the anniversary of Steve Jobs' death, symbolizing Apple being at half-mast in remembrance.
Hidden magnets:

The shine that guides you:

Hidden high-fidelity audio:

Toslink output. As soon as you plug in an optical adapter, MacBook Pros automatically switch over to Toslink, enabling higher-fidelity, high-definition sound.
A tiny "Do Not Disturb" eclipse:

Volume and Brightness Bounce:

One-finger lift to open:

Predictive "Store" button:

Apple now prevents iTunes from opening from a single tap of the "Store" button when someone is backtracking through the menus.
Virtual reflections:

Fingerprint organization:

Rebound to unlock the Camera app:

