1/ A Safari finger gesture opens links in the background Immediately — In iOS 11 there is a way to open links immediately in the background while browsing Safari. You’ll need to go into Settings>Safari and turn on Open Links, and choose to open links in the background.
Now you can long-press the link, or 3D Touch the link. This lets you open web pages without navigating away from the current page. (This feature may have been around at least since iOS 10, and it works on iPhone and iPad).
(If you don’t have 3D Touch, try tapping the link with two fingers.)
2/ Using AirDrop in iOS 11 — The first, and arguably easiest, way to toggle AirDrop in iOS 11 is through the Control Center. Open the Control Center by swiping up from the bottom of the screen. The platter in the top left corner will show you Airplane mode, Wi-Fi, Bluetooth, and Cellular Data, if you have it on your iOS device.
If you long-press or 3D Touch deep press on that platter, it will open up a couple more options (left) for you. One of those is AirDrop, which you can just tap on.
Then, choose whether you want the feature off, available to everyone, or available to just your contacts.
If you prefer, you can also find the toggle for AirDrop in the Settings app. Open Settings -> General -> AirDrop.
Then you can find the same configurations for AirDrop as in Control Center: Everyone, Contacts Only, or Off.
3/ Focus Lock the iPhone’s default camera — The iPhone’s default camera app is good, but sometimes there are one or two features you’re looking for that it doesn’t have, such as locking the focus or shooting in RAW. But it turns out that you can focus lock the camera, it’s just hidden away behind a gesture. Focus lock means that the camera will stay focused on a certain object even when you move around. Here’s how to do it.
Locking the focus isn’t new in iOS 11, but since the user interface is different it’s time for a refresher. You may already know that when you’re taking a photo with the default camera app, you can tap on the screen to focus on something specific in your frame. Now, to focus lock, you have to press and hold anywhere you want to focus on for a second.
The yellow reticle will flash a couple of times, and it will lock onto the object until you close the app or tap on another part of the screen.
After you lock the focus you can tap on the sun icon and swipe up or down to control the exposure. Swiping down will darken the image and lower the intensity of highlights so you get more detail.
4/ Turn Photos into custom Apple Watch faces — You’ll need at least one photo, but you can use up to ten for your custom watch face. Open the Photos app on your iPhone to get started. Now do this:
Select a photo you want to use as your custom watch face. You can pick up to 10.
Tap the Share icon in the bottom left corner of the screen
Choose Create Watch Face from the Share locations
Tap the Share icon (left) then the watch face icon (right) to turn your photo into a custom watch face
If you chose a single photo now you can set it as a Photos or Kaleidoscope watch face
Fine tune your custom watch face settings
Next, you can set where the time shows and if any complications are visible
Now head over to the Watch app to select your custom watch face
Now head over to the Watch app and select your new custom watch face. If you included multiple photos in your custom face they’ll change when you lift your watch.
5/ Customize taps for each of your AirPods — Take your AirPods out of their case (or just open it), launch your Settings app on your iPhone or iPad, and then touch Bluetooth.
Under that section, you should see your AirPods by name. Touch the “i” next to them first.
On the subsequent screen, there’s a “Double-Tap on AirPod” section, now separated into left and right.
So just touch the side you want to configure, and you’ll see your choices.
Tap the behaviour you want, go back to set up the opposite AirPod, and then you’ll see what you’ve chosen out on the previous Settings > Bluetooth > AirPods screen.