When portability is what you need in a teleprompter, the Ulanzi PT-16 Universal Portable Teleprompter for Smartphones fits the bill. Designed to use your smartphone, from 2.2 to 3.5" wide, for the prompting text, you can mount this prompter on your smartphone, with the included smartphone expansion board. An included Bluetooth remote enables you to control optional prompting software of your choice.
Made from ABS plastic with a glass beamsplitter, this rugged unit stands on its own and you can mount it directly to a tripod with the 1/4"-20 threaded hole built into its mounting foot. The hood has 3 x integrated cold shoe mounts for optional accessories such as lights or microphones. An included anti-reflection donut helps prevent stray light from degrading the image.