Apple has released its iOS 13 update, packed with new features such as Dark Mode , Apple Arcade , and a Google Street View -like Maps experience called Look Around.

But while these changes might be grabbing the headlines, there are plenty of other lesser-known and hidden features in iOS 13, which could change the way you use your iPhone.

We've collected a few of our favourites here for you to try out once you've downloaded the software update.

Silence Unknown Callers

iOS 13 introduces a new feature called Silence Unknown Callers, which automatically blocks incoming calls from unknown numbers.

If you have voicemail enabled, the call will go directly to voicemail, and the number will be displayed on your 'Recents' list in the Phone app.

Not another nuisance call

Incoming calls from people in your contacts will still go through, as will calls from numbers you have recently dialled, and those that Siri has found in your Mail or Messages.

The feature isn't activated by default, so if you want to use it you'll have to turn it on in your Settings.

Just open the Settings app, scroll down to "Phone" and then touch the switch next to "Silence Unknown Callers" so that it turns green.

While this feature could be a godsend if you're constantly being bothered by nuisance calls, it's worth bearing in mind that it could have some unintended consequences.

For example, it may end up blocking calls from legitimate sources, such as your doctor, your bank or your child’s school.

 

QuickPath swiping keyboard

The new QuickPath keyboard in iOS 13 allows you to swipe your finger from one letter to the next to type without removing your finger from the keyboard.

This works using a machine learning model, which identifies paths drawn on the keyboard and converts them into words.

You can swipe or tap to type interchangeably, so you can choose what's most convenient, even mid-sentence.

 

Three-finger text editing

iOS 13 brings new ways to edit text, using three-finger gestures to cut, copy and paste.

Pinch up with three fingers to quickly copy, pinch up with three fingers twice to cut, and pinch down with three fingers to paste.

You can also undo with a three-finger swipe to the left or redo by swiping three fingers to the right.

You can move the cursor around by holding down on it and dragging it to where you want. It will automatically snap to lines and between words.

You can also select text just by tapping. Double‑tap to quickly select addresses, phone numbers or email addresses, tap three times to select a sentence and tap four times to select a whole paragraph.

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Memoji stickers

In 2017, Apple introduced a feature called Animoji in Messages, which uses Apple's Face ID camera system to map popular emoji characters to your face, so that they appear to mimic your facial expressions.

Apple expanded this in 2018 with Memoji, which allow you to create an avatar that looks like you, and tracks your facial movements in the same way as Animoji.

Now, with iOS 13, Apple has added Memoji stickers, which are essentially packs of static images, based on your Memoji and Animoji characters, that can be used to express a range of emotions.

Memoji stickers are built into the iOS 13 keyboard, and can be used in Messages, FaceTime, and even third-party apps like Facebook and Twitter .

Unlike the animated Animoji and Memoji, Memoji stickers are available on all iPhone models, not just those that feature the TrueDepth camera.

 

Low data mode

A few years ago, Apple introduced Low Power Mode, which lets you squeeze more life out of your iPhone's battery by temporarily reducing background activity like downloads and mail fetch until you can fully charge your iPhone.

Now, with iOS 13, Apple is doing something similar for data.

Apple says iOS 13's Low Data Mode helps apps on your iPhone reduce their network data use when you're getting close to your monthly limit.

To switch it on, go into Settings on your iPhone and tap Mobile Data, then select Mobile Data Options and tap the switch next to Low Data Mode so it turns green.

Since time immemorial, the iPhone's camera has captured photos with a 4:3 image ratio, which isn't ideal for sharing or viewing on a smartphone screen.

Now, with iOS 13, Apple has added the ability to capture pictures in a 16:9 ratio, which fills most of the screen and is much more visually appealing.

To change the setting, open the Camera app and tap the arrow at the top of the screen. This will cause a menu to pop up above the capture button.

One of the options in the menu is 4:3, and if you tap it, it will come up with a secondary menu where you can select 16:9.

If you want to lock this in as your default, go to Settings, scroll down to Camera, select Preserve Settings and then switch on Creative Controls.

 

New volume indicator

This is arguably more of an interface tweak than a feature, but with iOS 13 Apple has changed the volume indicator, so that it no longer appears right in the middle of screen when you adjust the volume.

This has been a bugbear of iPhone users for years, as the indicator often ended up covering a large portion of the screen at crucial moments - like when they were watching Netflix or YouTube.

The new volume indicator is much more discreet, and just slides in from the side of your screen. As you adjust the volume, it shrinks down even further to a narrow line.

The "hidden" part is that when that bar shows up on your screen, you can use your finger to drag the volume up and down instead of having to use the physical volume buttons.