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Computer Desktop Encyclopedia
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True Tone Flash

A camera flash technology in the iPhone, starting with the iPhone 5s (September 2013). Using two LEDs; one white, one amber, they are not designed to give off more light but to color correct the ambient light in the room for more accurate flesh tones. Each LED can be lit with a varying intensity that together produce 1,000 different color temperatures. See iPhone 5S.

iPhone 5S

The high-end iPhone preceding the iPhone 6 and a major upgrade from the iPhone 5. Introduced in September 2013 along with the entry-level 5C, it was the first time Apple offered two new phone models (see iPhone 5C). The 5S also featured iOS 7, a completely redesigned OS for the first time since the iPhone's debut in 2007 (see iOS versions).

Available with up to 64GB of storage, the 5S employed Apple's A7 64-bit CPU for faster processing and a second processor for motion sensing (see Apple coprocessor). A greatly enhanced camera with a larger sensor provided image stabilization, more accurate flesh tones (see True Tone Flash), slow-motion video, zoomed video, image filters and new modes for square pictures, panoramas and 10 stills per second. The 5S used a Nano SIM card, rather than the Micro SIM in previous iPhones.

Touch ID
A significant external change was Touch ID, which added a fingerprint reader to the home button. Users touched the button to unlock the phone or download from the App store. See iPhone.

The 5S and 5C Models
The 5S cases were metal with more conservative hues, whereas 5C cases were plastic and colorful. (Image courtesy of Apple, Inc.)

Touch ID Fingerprint Reader
Other than case colors, the most obvious external difference between the 5S and 5C hardware was the combo home button and fingerprint reader on the 5S. (Image courtesy of Apple, Inc.)

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