Step 2: If your device is supported, an iOS 11 OTA update prompt should appear on the screen. Step 1: Go to Settings > General > Software Update on your 64-bit iOS device running iOS 10.
However, if you are looking for a seamless performance then you should definitely try the clean installation method. Over-the-air (OTA) method is the easiest and quickest way of installing iOS 11 on your iPhone, iPad or iPod Touch. Note: It is recommended to perform a full data backup of your device using iTunes or via iCloud, before installing iOS 11 on it in order to prevent unexpected data loss. Here's the full list of iOS 11 compatible devices: Before you proceed please check if your device appears in the compatibility list below.
Here's the complete step-by-step guide to help you download and install iOS 11 on all compatible iPhone, iPad and iPod Touch devices either via OTA or clean installation. iOS 11 will also be available on the newly launched iPhone 8, iPhone 8 Plus and the flagship iPhone X out-of-the-box. Apple has finally released the highly-anticipated iOS 11 update for a spate of devices including the iPhone 7/7 Plus, iPhone 6/6s, iPhone SE, iPhone 5s, iPad Mini 2 and above, and iPod Touch sixth-gen.