The HP Sprocket is shockingly small. It looks similar to a portable hard drive, or maybe a really thick phone. It’s not just compact, however, it’s also incredibly sleek. A sharp metal band traces around the edge of the printer, eventually opening up into a little mouth where your photos can eject from. Aside from the USB charging port and a little loop strap to carry it, there is not much else on the printer. Let’s take a look at see how it performs.