f/1.8 & f/2.2 & f/2.4
f/1.5 & f/2.2 & f/2.4
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.
Wide aperture (main camera): is this important to you?