Download or read book Mastering Apple iPhone written by Adidas Wilson and published by Adidas Wilson . This book was released on with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The iOS 13 is the newest iOS version from Apple. This operating system continues with the optimization trend that started with the iOS 12. Everything is now more efficient and faster. The iPhone 11 has a Liquid Retina HD display. The resolution at 326 pixels per inch is 1792 x 828. According to Apple, this LCD is the most advanced. The display still supports Tap to Wake, True Tone, wide color, swipe-based gestures and other technology advancements by Apple. The contrast ratio is 1400:1 which makes it inferior to the Pro models. Haptic Touch: the 3D touch feature in the iPhone XR has been replaced by the Haptic Touch option. The A13 Bionic chip in the iPhone 11 is better than the A12 one in the iPhone XR. It is the fastest and most advanced for now.