Easyjet has launched an app feature that allows passengers to scan their bags for size at home.

The app uses Apple’s ARKit 2 technology and the phone’s camera to measure the bag and show whether it meets the airline’s hand luggage requirements.

It is part of the main Easyjet app, but is currently only available to iPhone users with the 6S model or onwards.

Easyjet allows one bag of 56cm x 45cm x 25cm, with larger bags put in hold at extra charge.

Fellow low-cost carriers Ryanair and Wizz Air both reduced their hand luggage allowances for non-priority passengers last year, a change that Wizz’s CEO said helped boost revenue per passenger by 7 per cent in the third quarter. Ryanair allows one 40cm x 20cm x 25cm bag, while Wizz allows 40cm x 30cm x 20cm.

Easyjet said: “Whilst the permitted dimensions of cabin bags are clearly displayed on easyJet’s website, the move is set to make it even easier for customers to check their luggage and provide greater certainty as to whether they can travel with their bag in the cabin.

“It also means they won’t be faced with any additional charges at the gate for bringing an oversized bag which can’t be taken onboard.”

Head of Digital Experience Daniel Young commented:

“We are constantly on the search for ways to improve the travel experience we offer our customers when flying with us and this new technology is a perfect example of that.

“We continue to place innovation at the heart of our industry-leading mobile travel app to give our customers the tools they need to take stress away from the airport experience. Embracing this latest technology makes preparing for travel easy and fun.”