While suppliers such as American Airlines and Starwood Hotels & Resorts and intermediaries such as Expedia lead a pack of travel companies that have made their apps available on the Apple Watch since that product’s April 24 launch, the analysts predicted that, for the foreseeable future, its relatively small physical interface will prevent it from being used for much more than a mapping device, an instant-notification tool or possibly a method for hotel room keyless entry. The issue most often cited is the Apple Watch’s relatively small screen and the challenge of performing transactions on it. The watch is available with 38 millimeter or 42 millimeter square screens. Even the larger screen is only about 2.2 inches diagonal, while the iPhone 6 Plus’ rectangular screen is almost six inches diagonal. In addition, Apple Watch’s apps need to be linked up with its user’s iPhone, and the product is not compatible with versions earlier than iPhone 5 (nor does it work with Android or Windows phones). Get the full story at Travel Weekly