Found a site where you can compare sensor sizes of different smartphones, etc.
Image Sensor Relative Size Comparison Tool:
http://cameraimagesensor.com/size/#236,193,237,238,190,19,11,a
The iPhone 5s' sensor is only 15% larger than the iPhone 5 sensor....
Image Sensor Relative Size Comparison Tool:
http://cameraimagesensor.com/size/#236,193,237,238,190,19,11,a
The iPhone 5s' sensor is only 15% larger than the iPhone 5 sensor....