Many streamers use a 4K camera to capture and share live content in real-time. The main benefit of using a 4K camera for streaming is that it generally offers a sharper, more detailed image than one with 2K resolution. You can also downsample footage to 1080p from the full 4K video feed, which gives you greater flexibility (especially if you’d like to crop in on part of the frame).
However, you don’t necessarily need a 4K camera for streaming. Due to bandwidth constraints, many people only watch videos at 1080p, so 4K may be overkill for your audience – especially if they stream your content on their smartphone’s smaller screen (and using a cellular data connection).
In addition, your own internet connection will need to be fast enough to maintain a steady stream of 4K footage, which is significantly more data-hungry than Full HD. It’s also important to note that, while several cameras support live-streaming, many 4K cameras will actually only allow you to stream at 1080p.
Other factors are usually more important for streamers than resolution alone. This might include in-camera support for direct live-streaming. Panasonic’s GH5 Mark II, for example, can stream 1080p footage straight to platforms like YouTube via Wi-Fi. Equally, aspects such as support for external microphones will be more useful for streamers and vloggers who talk to their audience while on camera.