@noiob you're using a sony mirrorless right? then it's probably about a 1.5 crop :)
@cinnamon that's a Pixel 4a 5G
@cinnamon GSMArena reports the camera as 12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS, dunno if any of those indicate sensor size. I know it's a Sony sensor though, I guess there should be datasheets somewhere
@noiob crop factor is a ratio of a camera's sensor size compared to full frame (35mm) sensor size, not a measurement of lens size