Keeping in mind the variety on offer, we've listed lightweight portable projectors with built-in batteries that work well with your smartphone and are priced under $500 at the time of writing.

An curved arrow pointing right. It's really simple to build a projector for your smartphone to be able to project the same types of holograms seen in Star Wars and other movies. Here's how!

Aurzen has unveiled a new tri-fold portable projected called the ZIP, and its small enough to fit in your pocket.

The device also comes with a 1,200-lumen camping light, which can illuminate your path at night, and an adjustable-focus 100-lumen, 120Hz DLP projector suitable for presentations or movie viewing ...

Just because something is adorable doesn't mean it's not doing any work. These are the cutest tech gadgets around and they're as practical as they are precious.