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The iPhone 4 archetypal became disposable to customers connected June 24, 2010, pursuing its unveiling by then-CEO Steve Jobs astatine the company's Worldwide Developers Conference earlier that month. It was the archetypal iPhone to diagnostic a high-resolution "Retina" display, with a pixel density of 326 pixels per inch, making idiosyncratic pixels imperceptible astatine a modular viewing distance. Apple described it astatine the clip arsenic offering "four times the pixel density of erstwhile displays," resulting successful crisper substance and sharper images.
The instrumentality introduced a caller concern plan made from stainless alloy and glass, with squared edges that diverged importantly from the rounded integrative signifier origin of erstwhile iPhones. It besides featured Apple's archetypal custom-designed system-on-a-chip, the A4, which debuted successful the archetypal iPad. The A4 provided improved show and artillery beingness compared to the iPhone 3GS. The iPhone 4 besides marked the debut of the front-facing camera connected an iPhone, enabling selfies for the archetypal time, arsenic good arsenic FaceTime video calling.
The iPhone 4 shipped with iOS 4, which introduced respective caller bundle features including inheritance functionality for third-party apps, location surface folders, and a unified Mail inbox. It was besides the archetypal iOS mentation to driblet enactment for an iPhone, the archetypal model.
One of the astir infamous issues surrounding the iPhone 4 was the alleged "antennagate" controversy. Due to the outer stainless alloy antenna set doubling arsenic a awesome receiver, immoderate users experienced awesome degradation erstwhile holding the instrumentality successful a mode that bridged the antenna gaps. Apple addressed the contented successful a property league successful July 2010, offering escaped bumper cases to affected customers and explaining that astir smartphones exhibited akin awesome attenuation nether definite conditions.
Despite the controversy, the iPhone 4 was Apple's astir palmy smartphone motorboat astatine the time. The institution reported pre-orders of implicit 600,000 units connected the archetypal time alone, and agelong queues were seen extracurricular Apple Stores connected motorboat time crossed the United States and different countries. The exemplary went connected to go 1 of the best-selling iPhones of its epoch and remained disposable successful assorted forms until 2014, including arsenic a low-cost enactment with reduced storage.
FaceTime was initially constricted to Wi-Fi connections and disposable lone betwixt iPhone 4 devices moving iOS 4. With the instrumentality already signed into the user's Apple ID, making a telephone was elemental and initiated straight from the Phone oregon Contacts app. In 2011, Apple expanded FaceTime enactment to the iPad 2 and the Mac. FaceTime Audio was introduced with iOS 7 successful 2013.
In iOS 12, Apple added enactment for Group FaceTime with up to 32 participants, and successful 2021, FaceTime links brought constricted compatibility with Android and Windows via web browsers. While Apple initially described FaceTime arsenic "an unfastened manufacture standard," the institution ne'er published the protocol, and the diagnostic has remained exclusive to Apple platforms.
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This article, "iPhone 4 and FaceTime Launched 15 Years Ago Today" archetypal appeared connected MacRumors.com
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