"Less pixels" means there are fewer tiny dots (pixels) used to create an image on a screen or in a picture.
Sentences with «less pixels»
You will find that the phone with less pixels does much better. (goodereader.com)
The larger screen and less pixels of the Air is noticeable. (laptopmag.com)
The idea is that with less pixels on the sensor, they can be larger and attract a greater amount of light, improving low - light images and overall noise. (thenextweb.com)