IPhone 6

The iPhone 6 and iPhone 6 Plus are smartphones that were developed and marketed by Apple. They are the eighth generation of the iPhone, succeeding the iPhone 5, iPhone 5c and iPhone 5s, and were released on September 19, 2014. The iPhone 6 and 6 Plus respectively include larger 4.7-inch and 5.5-inch displays, a faster processor, upgraded cameras, improved LTE and Wi-Fi connectivity and support for a near-field communications-based mobile payments offering. The iPhone 6 and iPhone 6 Plus were replaced as the flagship devices of the iPhone series by the iPhone 6s and iPhone 6s Plus on September 9, 2015.

The iPhone 6 and 6 Plus received positive reviews, with critics regarding their redesign, specifications, camera, price point, and battery life as improvements over previous iPhone models. However, aspects of their design were criticized, including plastic strips on the rear of the device for its antenna that disrupted the otherwise metal exterior, and the screen resolution of the standard-sized iPhone 6 being lower than other devices in its class. The iPhone 6 sold extremely well, making it the best-selling iPhone model and the most successful smartphone to date. The iPhone 6 and 6 Plus supported iOS 8, 9, 10, 11 and 12 before being dropped by iOS 13.

The phones have been the subject of several hardware issues, including being susceptible to bending under hard pressure, and as a byproduct of this lack of rigidity, the touchscreen's internal hardware being susceptible to losing its connection to the phone's logic board. Additionally, some iPhone 6 Plus models were the subject of camera issues, including some with malfunctioning optical image stabilization or other defects on rear cameras.

The iPhone 6 and 6 Plus were moved to the mid-range spot in Apple's iPhone lineup when the iPhone 6S and 6S Plus were released in September 2015. The iPhone 6 and 6 Plus were discontinued in most markets on September 7, 2016, when Apple announced the iPhone 7 and iPhone 7 Plus. Their spot as the entry-level iPhone was taken by the first-generation iPhone SE, released on March 31, 2016. The iPhone 6 was relaunched with 32 GB of storage in 2017 as a midrange/budget iPhone.

From the launch of the original iPhone to the iPhone 4s, iPhones used 3.5-inch displays — which are smaller than screens used by flagship phones from competitors. The iPhone 5 and its immediate successors featured a display that was taller, but the same width as prior models, measuring at 4 inches diagonally. Following Apple's loss in smartphone market share to companies producing phones with larger displays, reports as early as January 2014 suggested Apple was preparing to launch new iPhone models with larger, 4.7-inch and 5.5-inch displays. Reports prior to its unveiling also speculated Apple might use a new iPhone model to introduce a mobile payments platform using near-field communications—a technology that was incorporated into many Android phones, but had experienced a low adoption rate among users.

The iPhone 6 and iPhone 6 Plus were officially unveiled during a press event at the Flint Center for Performing Arts in Cupertino, California on September 9, 2014, and released on September 19, 2014; pre-orders began on September 12, 2014, with the iPhone 6 starting at US$199 and the iPhone 6 Plus starting at US$299. In China, where the iPhone 5c and 5s were the first models in the iPhone series to be released in the country on the same day as their international launch, Apple notified local wireless carriers it would be unable to release the iPhone 6 and iPhone 6 Plus on the 19th there were "details which are not ready"; local media reported the devices had not yet been approved by the Ministry of Industry and Information Technology, and earlier in the year, a news report by state broadcaster China Central Television alleged iPhone devices were a threat to national security because iOS 7's "frequent locations" function could expose "state secrets."

In August 2015, Apple initiated a replacement program for some early iPhone 6 Plus models that were found to have potentially faulty cameras that could be causing photos to appear blurry.

On September 9, 2015, with the release of the iPhone 6s and iPhone 6s Plus, the iPhone 6 and 6 Plus were moved to the mid-range of the iPhone lineup. The 128 GB versions of the iPhone 6 and iPhone 6 Plus were discontinued along with the gold version of both phones, but the 16 GB and 64 GB versions of the iPhone 6 and iPhone 6 Plus in silver and space gray remained available for sale at a reduced price.