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There are numerous ways to connect an Android phone to a projector, with USB being a popular choice. It is suitable when wirelessly connecting the devices is not feasible. Also, a wired USB connection is better for watching movies in 4K because the data transfer requires higher bandwidth. Wireless connections may cause buffering in some situations that can be eliminated by connecting an Android phone to a projector via USB cables. There are different cable variants available for both types of USB ports (micro or Type-C) found on modern smartphones.