Hello there Sheena,
Welcome to planDisney and thanks so much for this question!
I had to search a bit to see if I could find an example of the Airwheel device you mentioned. My search online came up with either ridable luggage or an electric unicycle device - both sport the Airwheel name.
If it's the ridable luggage, this would not be allowed as referenced in the
Permitted Items page. It says that Suitcases, backpacks or similar bags with wheels or suitcases, backpacks or similar bags larger than 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm are not permitted into the parks.
If it's the electric unicycle, it would also not be permitted as the Permitted Items page also says that unicycles are not allowed into the parks.
If you're looking for additional assistance to get around the parks, my recommendation would be to consider
renting an ECV or wheelchair. These can be rented just outside the park entrances on a first come, first served basis or you may be eligible to reserve one through ScooterBug, the Disney Featured Provider.
Thanks again for your question, Sheena! I hope you have a fantastic visit to the Happiest Place on Earth.
Have a Magical Day,
Greg