You can measure your luggage and check if it meets the requirements of a particular airline.
If you do not see the "Baggage" widget, it means that we do not yet have baggage requirements for that airline.
Not all device models support augmented reality (iPhone 6S and above do). For Android, it depends on the specific model.
Go to "Trips" → Select a flight.
Scroll down and click on the "Baggage" widget.
Then press the "Measure" button.
It will put you in camera mode, where you can compare your luggage with a virtual version of the size of your required cabin/drop-off luggage.
Go to the "Trips" → Select a flight → Find the "Baggage" widget → Click on "AR".
You will then be able to compare your cabin/drop-off luggage.