The Sprocket is rechargeable through a micro USB, connects to phone through bluetooth, and requires Zink / HP photo paper to work. That means it does not need ink because Zink's proprietary printing technology puts crystals on every sheet that show up as specific colors when they're heated up.

One key difference between the two Sprocket printers is that the plus model now wirelessly connects to phone over bluetooth 4.0 (vs. 3.0 on the smaller Sprocket), which in theory, should enable a more stable and faster connection. In addition, the plus packs a bigger 900mAh battery (500mAh on the Sprocket).

Photos that last up to 100 years. Get enough cartridges and photo paper to create 80 high-quality photo prints.