The number of megapixels determines the resolution of the images captured with the main camera. A higher megapixel count means that the camera is capable of capturing more details. However, the megapixel count is not the only important element determining the quality of an image.
The number of megapixels determines the resolution of the images captured with the front camera. A higher megapixel count means that the front camera is capable of capturing more details, an essential factor for taking high-resolution selfies.
With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
When recording movies they stay focussed and sharp.
A flash is good for low-light environments, and can sometimes be used as flashlight.
This allows you to manually set the ISO level.
The pixel size measures the length of the individual photodetectors (pixels) in the image sensor. Larger pixels can capture more light, providing better image quality and improved low-light performance.
A front camera, also called secondary camera, can be used for video chats/selfies.
With manual white balance you can choose the most accurate setting and avoid the green, blue or red hue which can occur in auto mode. You can also change the setting for artistic effect.