It's definitely the smallest thumb drive I've tested, measuring 0.73 inches at its widest point and weighing just three grams. It looks more like a USB dongle for a mouse than external storage.
Teal: Just like blue, but denoted as USB 3.1, supporting faster transfer speeds of up to 10 Gbps. Red: These are the newest and fastest devices available, categorized as USB 3.1 Generation 2 and USB 3 ...