What is Portrait mode?
Portrait mode is a camera feature which helps you take better pictures by capturing a sharp subject with a blurred background, so full focus is on what you’re shooting. It was engineered to improve close-up photos of one person.
The following phones have Portrait mode:
If you're using iPhone, the iPhone camera app will let you know if you're too close, too far away or if the area is too dark. You can also use True Tone flash, set a timer and apply filters.
On iPhone 8 Plus, iPhone X and newer iPhones, you can use the Portrait Lighting feature to apply studio-quality effects to your Portrait images after you've taken them. You can also take a selfie in Portrait mode on iPhone X and newer models - just switch to the front camera and swipe to Portrait mode.
On older Samsung devices, Portrait mode is available but it's referred to as Live Focus.
The Sony Xperia 5 III 5G has a feature called Portrait selfie, which the front camera uses.
The image below shows two almost-identical pictures - this how a photo focused on a person might look if it was taken without Portrait mode (on the left) and with Portrait mode (on the right). The image on the right has a slightly blurred background, which brings the image subject clearly to the foreground - focusing your attention on them.