The main sensor is a 16MP camera with optical image stabilization for improved low light shooting and less chance of a blurry selfie should you have a shaky hand. (androidauthority.com)
It's also worth noting both rear cameras feature optical image stabilization with the S9 +, which makes it easier to snap sharp photos under less than ideal conditions. (mobilesyrup.com)
There's now a larger, faster sensor, with optical image stabilization for clearer pictures. (zdnet.com)