What’s the difference between megapixels and video resolution?

Question

I heard the Surface duo having an 11 megapixel camera, but able to record 4K, whereas I have a camera that’s 20 meagpixels but only 720p, and the camera on my phone is 13 megapixels and 1080p. Can you please tell me why? Does it have to do with sensor size?

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Thank you in advance.

In: Technology

Answer 1

1080 is 2.1 megapixels and 4K is 8.3 megapixels. Anything that can take pictures at a resolution higher than 8.3 megapixels has a sensor that can handle 4K, but it might have a bottleneck somewhere else, like the processor, or the software.