The terms UHD and 4K have become so conflated that TV makers, broadcasters, and tech media use them interchangeably—but they're not the same thing.

The highest progressive format in common use is 2160p, which is 4K (see 4K TV). THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

That means that if you have a supported 4K TV, you can stream Amazon Prime original shows in 2160p resolution. Nearly all of Amazon Prime Video’s original shows also support High Dynamic Range ...

For the price, this is one of the best 4K webcams around. The picture quality across 720p, 1080p, and 2160p is incredibly ...

This 65" LED TV offers 4K Ultra High Definition, delivering lifelike color, texture, and detail. It features a 2160p resolution, ensuring a crystal-clear picture. The TV is integrated with Roku, ...

The data storage industry is transitioning the physical format of hard disk drives from 512-byte sectors to 4,096-byte sectors – commonly called 4K or 4KB sectors. Is the Windows operating ...

This gives you more space for multitasking and lets you see more of your surroundings when gaming than opponents on a 4K monitor, potentially giving you a tactical advantage. The bigger 49-inch ...

This is the latest model of the Fire TV Stick. The previous iteration dropped lower, but this updated one — which supports Wi ...

If you can't decide what to watch on TV, or can't remember where to find your favorite show, sporting event, or movie, there's a fresh solution: Google Streamer TV 4K. This just-announced Google ...

However, it’s undeniably intriguing, and I was glad to revisit the film with The Watchers 4K release, which is now available.

Promotions are subject to availability and retailer terms. The restoration, which presents the film in 4K Ultra HD (2160p) Blu-ray with Dolby Vision for the first time, includes a double-sided ...