Aperture values refer to the settings on a camera that control the amount of light entering through the lens. It determines how much blur or sharpness there is in a photograph. Full definition
In brighter light, it switches to a slower f / 2.4 aperture value for optimized detail and sharpness. (dxomark.com)
For reference, that's the same aperture value as the Google Pixel 2 — the best smartphone camera. (techradar.com)
You can move the aperture from f / 0.95 to f / 16, depending on your requirements — the simple rule is that a low aperture value will blur the background more, while a high value will not blur it as much. (techpp.com)