HardwareEdit
The iPhone 7’s exterior is similar in shape and size to iPhone 6 and iPhone 6S, though with a mirrored finish option. Alongside the existing silver, gold, and rose gold colors, the device is offered in new black and jet black colors. The jet black color is a darker shade with a high-gloss finish; it is created through a multi-step process, beginning with ananodization phase to make the surface of the casing a porous aluminum oxide, and then using a machine to wipe the casing through a powdered compound, absorbed by aluminum oxide. The process is concluded with an ultra-fine particle bath for additional finishing; the entire process takes less than an hour.[10][18] iPhone 7 is also water- and dust-resistant.[19]
iPhone 7’s home button uses a capacitivemechanism for input rather than a physical push-button, as on previous models.[20]Physical feedback is provided via the Taptic Engine vibrator, and the button is also pressure-sensitive.[21] The 3D Touch system from 6S was retained to provide pressure-sensitive touchscreen input.[10]
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Comparison of ports on iPhone 6 ( top) and iPhone 7 ( bottom)
iPhone 7 itself does not feature a 3.5 mmheadphone jack; it was replaced by a second speaker grille that contains not a speaker but the phone’s new Taptic Engine vibration feedback system.[22] A Lightning-to-3.5-mm connector adapter, as well as in-ear headphones that use the Lightning connector, are bundled with the device. The Lightning adapter is also sold independently.[10][23]iPhone 7 uses the Apple A10 Fusion 64-bitsystem-on-chip, which consists of two low-power cores and two high-power cores ( only two cores are used at any point in time[24]) The A10 chip also features a hexa-core graphics chip capable of console-level gaming.[25] As with prior models, iPhone 7 is available in two sizes: one with a 4.7-inch screen, and a Plus variant with a 5.5-inch screen.[26] The displays have identical sizes and resolutions to 6 and 6S, but with an increased color gamut and brightness.[10][27]Both device variants also contain a new iteration of Apple’s motion coprocessor, the M10.[28] Unlike previous iPhone models, internal storage options for iPhone 7 begin at 32 GB instead of 16 GB.[29] iPhone 7 Plus has 3 GB of RAM, more than any other iPhone to date, [24] the smaller, 4.7-inch iPhone 7 has 2 GB.[30]
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iPhone 7 Plus with dual-lens camera
The iPhone 7 includes a 12-megapixel rear-facing camera with a quad-LED True Tone flash; its aperture was widened to f/1.8, and the standard-size phone model adds optical image stabilization – a feature that was previously exclusive to Plus models. The iPhone 7 Plus includes a second 12-megapixel telephoto lens, which can be used to achieve 2× optical zoom, and up to 10× digital zoom. The front-facing camera on both versions was upgraded to a 7-megapixel sensor.