The iPhone 7 has a 4.7-inch screen at 1334×750, also known by Apple as a Retina HD display. The iPhone has a front and back camera: the rear camera is 12-megapixel and the front camera is a 7-megapixel FaceTime HD camera with 1080p video.
The iPhone 7 was the first iPhone (along with the iPhone 7 Plus) to remove the 3.5 mm headphone jack and only include a Lightning port for audio. Like the iPhone 6 and 6s before it, the iPhone 7 uses a “clickless” Home button that clicks using an internal Taptic-engine-powered solid state component. Although the iPhone 7 is not water-proof, it is splash, water, and dust-resistant.
The iPhone 7 came in several colors: silver (white glass front, silver back); gold (white glass front, gold back); rose gold (white glass front, pink-tinted gold back); black (black glass front, matte black back); jet black (black glass front, a high-gloss black anodized and polished black aluminum back); and later added a PRODUCT(RED) Special Edition (white glass front, red aluminum back).
The iPhone 7 uses the Apple A10 Fusion processor, 2 GB of RAM, and was available with 32 GB, 128 GB, or 256 GB of flash storage.
While I opted for the iPhone 7 Plus as my personal phone in the iPhone 7 era, I chose the then-new (and not offered since) jet black color. I immediately covered the glossy finish with a case to heed Apple’s warning that jet black “may show fine micro-abrasions with use.” (It did scratch easily!)
The iPhone 6s had a 4.7-inch “3D Touch” screen at 1334×750 (326 ppi, Retina HD). The iPhone 6s cameras were vastly improved over the iPhone 6 that preceded it: a rear 12-megapixel 4K iSight camera and a front 5-megapixel FaceTime camera in 720p (the iPhone 6 used a, 8-megapixel back camera and 1.2-megapixel front camera).
The iPhone 6s was available in four colors: silver (white glass front, silver back); gold (white glass front, gold back); space gray (black glass front, medium-gray back); and rose gold (white glass front, pink-tinted gold back).
The iPhone 6s did not use a physical Home button, but used its Taptic engine to simulate the click. It also used a Touch ID fingerprint sensor in the Home button.
Inside, the iPhone 6s used the Apple A9 processor with 2 GB of RAM and was available in 16 GB, 32 GB, 64 GB, or 128 GB of flash storage. The iPhone 6s was the last iPhone to include a headphone jack (located on the bottom) and used the Lightning port to connect to computer, dock, or power adapter.
This iPhone 6s example is an entry-level 16 GB model in silver with a white front. Unfortunately, this particular iPhone has a slight crack in the lower-left front screen glass (although it functions perfectly).
The iPhone Stereo Headset were the headphones that shipped with the first two iPhone models, the original iPhone (2007–2008) and the iPhone 3G (2008–2010). The headphones used a similar enclosed design as the later EarPods, and the right earbud included a control button with a microphone on the wire. The button is controlled by a squeeze and it can be set for a variety of tasks: answer/end calls, advance presentation slides, play/pause music/video, or capture photos. A double-press also allowed the user to skip to the next music track.
Note that the controller did not include the + and – option for volume and/or other controls, a feature now taken for granted in many headphone designs.
iLounge described these headphones as, “familiar and inexpensive, with very good earbud and microphone quality.” They also praised the bass response, warm sound, and the quality of the microphone.
This example is in Apple’s bulk packaging. I remember receiving the headphones when I attended an Apple Education professional development opportunity that required attendees to have a microphone. These were never unpackaged because I had brought and used my personal headphones.
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.
This particular iPhone 7 Plus model was used with an AT&T network in the United States. All iPhone 7 Plus models used a 5.5-inch widescreen multitouch Retina HD display at 1920×1080 (401 ppi). It used a taptic-engine that provided a clickless Home button. The iPhone 7 Plus used three cameras: two rear 12-megapixel cameras (one with a wide-angle and one with a 2x telephoto lens) and a front FaceTime HD camera (7 megapixels and 1080p).
The iPhone 7 Plus was originally available in five color options: silver (white glass front and a silver back), gold (white glass front and a gold back), rose gold (white glass front and a pink-tinted gold back), black (black glass front and a matte black back), and jet black (black glass front and a high-gloss anodized and polished black aluminum back). On March 21, 2017, Apple added a (PRODUCT) RED Special Edition with a white glass front and a red aluminum back.
The iPhone 7 Plus was splash, water, and dust-resistant (but not waterproof). It had a Lightning port, but lacked a headphone jack.
Internally, the iPhone 7 Plus used a 64-bit Apple A10 Fusion processor with four cores; 3 GB of RAM; and 32, 128, or 256 GB of storage. It supported 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.2, LTE (4G), and NFC for Apple Pay.
This particular iPhone 6 model was used an AT&T network (and functioned throughout North America). All iPhone 6 models had a 4.7-inch multi-touch screen at 1334×750 (326 ppi, Retina HD display). It had two cameras: a rear 8 megapixel iSight camera (1080p) and a front 1.2 megapixel FaceTime camera (720p).
The iPhone 6 was originally available in three color options: silver (white glass front and a silver aluminum back), gold (white glass front and a gold aluminum back), and space gray (black glass front and a medium-gray aluminum back). The iPhone used a unibody design with rounded sides (similar to the iPod touch Generation 5). The glass screen curved slightly at the edges. It also included a Touch ID fingerprint sensor.
The iPhone 6 used a 1.4 GHz 64-bit Apple A8 processor with 1 GB of RAM and 16, 32, 64, or 128 GB of storage. In addition to 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.0/4.2, and LTE (4G), it included NFC for Apple Pay transactions. It had both a bottom-mounted headphone jack and a Lightning port.
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 3G is similar to the original iPhone in functionality, but adds 3G cellular support and GPS. Although it features the same 320×480 resolution screen, the case is slightly thicker (0.02-inch) than the original, and had a plastic (rather than aluminum) back available in black or white. Both models were available in 8 GB or 16 GB, but the white iPhone 3G was only available in 8 GB.
The GPS functionality allowed the 2.0 megapixel camera to supports geotagging. The iPhone 3G uses the same multi-touch interface, accelerometer, ambient light sensor, and proximity sensor capabilities as the original iPhone, except it has two proximity sensors compared to one in the original.
The back of the iPhone 3G has the most curved shape of any iPhone design to date, and has been the only “flagship” iPhone model to ship with a plastic back.
iPhone 3GS looks nearly identical to the iPhone 3G that preceded it. The only obvious visual difference is that the markings on the back of the phone are printed with a heavier weight font and a more reflective silver ink than the iPhone 3G.
The iPhone 3GS has many feature changes. The screen added a new “oleophobic” oil repellent coating. The “S” added to the name might refer to its increased speed: the processor increased from 412 MHz to 600 MHz, the onboard RAM doubled to 256MB, and the cellular network speed increased to 7.2 Mbps. The camera was also upgraded to 3.0 megapixel with VGA video recording at 30 FPS, as well as autofocus, macro, and white balance support, a tap to focus feature, and the ability to trim videos. The iPhone 3GS also added a compass.
Several new accessibility features were added, including VoiceOver, voice control, integrated Nike+iPod support, and an inline remote on the headphone cable, all features that had been previously added to iPod shuffle Generation 3.