Iphone 7 has a problem with the battery
The iPhone 7 and iPhone 7 Plus are smartphones designed, developed, and marketed by Apple Inc. They were announced on September 7, 2016, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, and released on September 16, 2016, succeeding the iPhone 6S and iPhone 6S Plus as the current flagship devices in the iPhone series.[7] Apple also launched the devices in 30 additional countries on September 23, 2016, and will launch in India on October 7,[8] another 6 countries on October 14, and in South Korea on October 21.[9]
The iPhone 7’s overall design is similar to that of the iPhone 6S, but with new color options, added water and dust resistance, a new capacitive home key, and most notably, the removal of the device’s 3.5 mm headphone jack (an adapter for attaching wired headphones via the Lightning port, as well as earphones that connect via Lightning, are included with the phone). The devices’ internal hardware also received upgrades, including a heterogeneous quad-core system-on-chip with improved system and graphics performance, upgraded cameras (including 12 megapixel rear-facing cameras with optical image stabilization on both models, and an additional telephoto lens on the iPhone 7 Plus model to provide enhanced zoom capabilities).
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 an anodization 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.[7][10] iPhone 7 is also water- and dust-resistant.[11]
iPhone 7’s home button uses a capacitive mechanism for input rather than a physical push-button, as on previous models.[12]Physical feedback is provided via the Taptic Engine vibrator, and the button is also pressure-sensitive.[13] The “3D Touch” system from 6S was retained to provide pressure-sensitive touchscreen input.
iPhone 7 itself does not feature a 3.5 mm headphone jack; it was replaced by a second speaker grille that contains not a speaker but the phone’s new Taptic Engine vibration feedback system.[14] 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.[7][15] iPhone 7 uses the Apple A10 Fusion 64-bit system-on-chip, which consists of two low-power cores and two high-power cores (only two cores are used at any point in time[16]) The A10 chip also features a hexa-core graphics chip capable of “console-level gaming”.[17] 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.[18] The displays have identical sizes and resolutions to 6 and 6S, but with an increased color gamut and brightness.[7]Both device variants also contain a new iteration of Apple’s motion coprocessor, the M10.[19] Unlike previous iPhone models, internal storage options for iPhone 7 begin at 32 GB instead of 16 GB.[20] iPhone 7 Plus has 3 GB of RAM, more than any other iPhone to date,[16] the smaller, 4.7-inch iPhone 7 has 2 GB.
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.[11][22][23]
Software
iPhone 7 ships with iOS 10 pre-installed.[24] The iPhone 7 Plus will feature a portrait mode in the iOS 10.1 software update. This will be capable of producing a bokeh effect using depth of field analysis.
Reception to the iPhone 7 was mixed. Forbes noted that rival smartphones, such as theSamsung Galaxy S7, had increased battery life and added water resistance over its predecessor while retaining the headphone jack, and that the iPhone 7’s camera photo quality was improved but still lagging behind some phones already on the market, including the Galaxy S7 and Nexus 6P. Forbes also praised how Apple was able to extract improved brightness and accurate color reproduction from its LCD display panel, while noting that it was old technology which was also well behind rivals who had already moved to sharper 1080p or even 2K screens. The iPhone 7’s exterior, which reuses the aging design of the iPhone 6 and iPhone 6S, was criticized since its thick bezels made it less ergonomic to hold, in particular the “iPhone 7 Plus is simply far too big for a smartphone with a 5.5-inch display. The 5.5-inch Galaxy S7 Edge is a fraction of the size”.[28]
Nilay Patel of The Verge described the devices as being “full of aggressive breaks from convention” despite their design continuity with previous models (going as far as dubbing them “a prototype of next year’s rumored drastic iPhone redesign disguised as an iPhone 6”), citing the headphone jack removal (which he felt was an attempt to encourage the use of wireless headphones),heterogeneous CPU, and home button redesign. The display quality was considered an improvement over previous models, albeit “not as insane” as the quad HD displays on competing phones. The Taptic Engine was considered the “first really valuable new UI concept I’ve seen on phones in years” (as opposed to the “gimmick” of 3D Touch), Petel felt that the cameras of the devices were a “step” above the 6S in terms of performance, and praised the dual cameras on the 7 Plus for enhancing the phone’s camera functionality. However, he panned the iOS software for not containing enough editing features that made use of them. In regards to the enhanced Bluetooth audio support provided by devices containing the W1 chip, he argued that Apple “took away an established open standard in favor of new technologies, but instead of making the experience of using those new technologies better across the board, it made every third-party wireless audio product a second-class citizen of the Apple ecosystem.” Giving the iPhone 7 a 9 out of 10, he concluded that the devices were “legitimately among the most interesting, opinionated, powerful phones Apple has ever shipped, and the most confident expressions of the company’s vision in a long time. iOS 10 is excellent, the cameras are better, and the performance is phenomenal. And the batteries last longer.”[29]
The German computer magazine c’t compared the audio interface of the iPhone 6 and iPad with the Lightning connector of the iPhone 7. The dynamic was 4.5 dB(A) lower, and that got only a “sufficient” rating.
