The picture belongs to the viewing edition
A movie poster is not a measurement of the video you will receive. After selecting an offer, inspect its resolution and the supported device. OnStream does not apply a universal 4K badge to every catalogue title.
HD or Full HD?
720p and 1080p describe different image resolutions. A comfortable phone session may not need the same setting as a large television. Let the actual picture and connection stability guide the choice.
A 4K screen is only part of the setup
The title, offer, application and playback device must also support the intended quality. HDR and audio formats are separate details. Do not replace an account or device just because a poster page lacks a quality label.
When clarity changes during playback
An application may adjust its bitrate when the connection changes. If motion keeps stopping, use its available Auto or lower-quality option and test again. These controls belong to the application playing the video, not this page’s search field.