While the NOMATIC Carry-on Classic and Carry-on Pro have some similar characteristics and have the same external dimensions. There are a few key features that can make a significant improvement to the way you Live Life on the Move. The major difference between the two is the tech panel on the Carry-On Pro. This is designed for our customers who consistently carry their tech accessories that include laptops, tablets, etc. It's a safe compartment to put them in and provides easy access when going through TSA. The tech pocket does provide a little bit less room in the packing compartment, however. The Carry-On Classic does not have the tech panel and does not include the Tech Case as an added accessory. The Carry-On Classic, however, does provide a bit more storage in the main compartment. You can find them both here, included with more details and specs: NOMATIC Carry-on Pro NOMATIC Carry-on Classic