A 4K webcam records with a resolution of 3840x2160 pixels. This is the best resolution for a webcam. As a result, you'll always be in sharp focus. That's why 4K webcams are ideal for streaming your gameplay in high-quality or recording videos. In addition, you get razor-sharp images during video calls with colleagues. Do keep in mind that streaming 4K images requires a high internet speed for both you and the recipient.