Tell some facts about Apple Smartphones ?

In 2016, Apple unveiled the iPhone 7 and 7 Plus, which added water and dust resistance, improved system and graphics performance, a new dual-camera setup on the Plus model, new color options, and featured the removal of the 3.5mm headphone jack from the iPhone.

On September 12, 2017, Apple officially unveiled the iPhone 8 and 8 Plus, which features a new glass design, camera improvements, a True Tone display, wireless charging and improved system performance. It also unveiled the iPhone X, which features a near bezel-less design, a facial recognition feature dubbed "Face ID" with facial tracking used for Animojis, an OLED screen with the highest pixel density on an iPhone, a new telephoto lens which works better in low light conditions, and improved cameras for AR.

On September 12, 2018, Apple officially unveiled the iPhone XS, XS Max[53] and XR at the Steve Jobs theater at Apple Park. The XS and XS Max feature an improved Super Retina Display with Dolby Vision and HDR10 support with the XS Max featuring a larger 6.5" display, improved cameras with Smart HDR, and the A12 Bionic chip.

The iPhone XS and XS Max are IP68 water, liquid, and dust resistant which allow the devices to be submerged in up to 2 meters for a duration of 30 minutes, while iPhone XR retained the IP67 certification found in the first-generation iPhone X and also features an IPS LCD display instead of the OLED displays found in the higher end models. The iPhone XS/XS Max's IP68 certifications were tested using various liquids such as chlorinated-water, salt water, tea, wine, beer, and juices. Apple also announced the fourth generation of Apple Watch, the Apple Watch Series 4.

Apple sold 6.1 million first generation iPhone units over five quarters. Sales in the fourth quarter of 2008 temporarily surpassed those of Research In Motion's (RIM) BlackBerry sales of 5.2 million units, which briefly made Apple the third largest mobile phone manufacturer by revenue, after Nokia and Samsung(however, some of this income is deferred). Recorded sales grew steadily thereafter, and by the end of fiscal year 2010, a total of 73.5 million iPhones had been sold.