The iPhone 4S was the product that first introduced the Siri voice assistant. The iPhone 4S was designed around a stainless-steel body with a glass front and back. It had a 3.5-inch LED-backlit 960×640 326 ppi multi-touch Retina display and included two noise-cancelling microphones. It was available in black or white.
The iPhone 4S supported both GSM and CDMA networks and included 802.11b/g/n and Bluetooth 4.0. It used a dual-core Apple A5 processor; 512 MB of RAM; and 8 GB, 16 GB, 32 GB, or 64 GB of internal storage. It had two cameras: an 8 megapixel HD camera (1080p at 30 FPS) with an LED flash on the rear and FaceTime camera on the front that allowed FaceTime video calls over Wi-Fi.
Replacing the “squat” design of the Generation 3, the iPod nano Generation 4 returned to a “skinny” design similar to its predecessors. The new wraparound curved aluminum and glass case was offered in an unprecedented nine colors: silver, black, purple, blue, green, yellow, orange, pink, and (PRODUCT) RED Special Edition. The display was a wide-format 2-inch (diagonal) color LCD display at 320×240.
The iPod nano Generation 4 used either 8 GB or 16 GB of flash memory, capable of storing 2000 or 4000 songs, 7000 or 14,000 photos, and 8 hours or 16 hours of video. All colors were offered for both capacities.
The iPod nano Generation 4 features included an accelerometer (automatically switched to “Cover Flow” navigation in landscape orientation), games and videos only played in landscape, a new Genius feature to dynamically create playlists, and shake-to-shuffle for songs. Accessibility options were added including larger text and spoken menu items. It also included Nike+iPod support, FM radio tagging (using the Apple Radio Remote), support for audio crossfade, and games including Maze, Klondike, and Vortex.
The iPhone 4 represented a major design leap from the previous models with an all stainless steel body, a 3.5-inch Retina display at 960×640 (326 ppi), a chemically hardened “aluminosilcate” over the front display, and the chemically hardened black glass back. A white option was announced, but did not ship for over a year after the announcement.
The iPhone 4 was the first iPhone with dual front and back cameras: a 5 megapixel HD video/still camera (720p at 30 FPS), a 5X digital zoom, and an LED flash on the rear; and a VGA-quality video/still camera on the front designed for video conferencing over Wi-Fi using FaceTime. Both cameras used noise-cancelling microphones.
The iPhone 4 was powered by an A4 processor and added additional mobile network support. It included a digital compass, GPS, an accelerometer, and a new 3-axis gyroscope.
The iPhone 5 included a 4-inch widescreen multi-touch Retina display at 1136×640 (326 ppi); a rear 8-megapixel, 1080p iSight camera, a front 1.2-megapixel, 720p FaceTime HD camera; and 4G/LTE support. The aluminum unibody case had a glass front and came in either a dark gray slate matte back with a glossy black front or a silver matte back with a glossy white front.
The iPhone 5 uses a 1.3 GHz dual core Apple A6 processor, has 1 GB of RAM, and 16 GB, 32 GB, or 64 GB of flash storage. It also included three noise canceling microphones, a bottom-mounted headphone jack, and a new USB 2.0 Lightning port for connectivity.
The iPod nano Generation 6 was a major design change from previous iPod nano models. This iPod nano came in silver, graphite, blue, green, orange, pink, and (PRODUCT) RED Special Edition. Its design was a square aluminum and glass case with a clip on the back and a 1.54-inch Multitouch screen.
Although its interface looks similar to iOS, it cannot run iOS applications or games compatible with previous iPod models. Its features include a pedometer, FM radio with live pause, Nike+iPod functions, VoiceOver, and Shake to Shuffle.
The iPod nano Generation 5 was notable because of its impressive color choices. This model was available in nine colors: (PRODUCT) RED Special Edition, pink, orange, yellow, green, blue, purple, silver, and black. The finish for the generation 5 nano is glossy and the case is made of aluminum and glass. It was available with 8 GB or 16 GB of flash memory (2000 or 4000 songs).
This iPod nano also features a video camera with an integrated microphone and speaker that takes advantage of its high-quality 2.2″ TFT display (240×376, 204 ppi). The video quality is H.264 VGA 640×480 at 30 FPS with AAC audio, but it cannot take still photographs. This iPod also has a built-in FM Radio with “live pause,” allowing pause and rewind up to 15 minutes.
My example is blue, and I remember using it as a back-up/additional video camera that had surprisingly good audio for its size.