You’ll notice a sharper picture. But first, verify your streaming subscription has 4K — you may have to upgrade your plan. Next, you’ll want to ensure you have a compatible device for your streaming service, which may be a 4K smart TV, tablet, PC, laptop, game console, or media player like an Amazon Fire Stick, Apple TV box, Chromecast or Roku stick. Your device should support HDMI 2.0 and HDCP 2.2. Install the streaming app directly on your device.
Your internet speed matters too; the faster, the better. While Netflix suggests a minimum of 15 Mbps, Max recommends a faster 25-50 Mbps for the best experience, as does Apple TV Plus. You can also go the extra mile and check the bitrate while your video is playing.
Stream titles that are tagged with the 4K icon in your app. Some videos may not look as punchy in 4K depending on the streaming service or your device, but you can check your device’s display settings to see if it’s set to “high resolution.”
Source: CNET
