Anker Portable projectors allow you to instantly transform any wall into a movie theater. Most are equipped with their own rechargeable batteries, speakers, and apps for streaming all of your favorite shows anywhere. We tested a handful of portable projectors to help you find the best one for your needs and budget. Our picks are easy to operate and pack enough battery life to get through a 2-hour movie but are still small enough to toss into a bag. 1: Xiaomi Mi Smart Compact Projector Whether you're using it for work or play, this reliable portable projector lets you bring presentations and videos with you anywhere you go. It offers an impressive native resolution of 1920 by 1080 pixels and the ability to project an image up to 120 inches. The projector is equipped with dual 5-watt Dolby-tuned speakers, and all the ports you could possibly want. On the device's backside, you'll find an HDMI port, a USB-A port, and a headphone jack. This project...