The PowerShot SX400 IS has a CCD sensor type which is better than the MOS sensor type found on most recently released bridge camera digital cameras. CCD sensors produce high quality, low-noise images but consume a lot more power than CMOS sensors. CCD is the most common image sensor type used in digital cameras.
This digital camera's sensor type (CCD) is in fact the best sensor type amongst all comparable spec digital cameras that have been on the market for a similar time to the PowerShot SX400 IS.
The worst sensor type across similar types of digital camera is MOS.
There are a number of alternative cameras that have a CCD sensor currently available that you might also want to look at including because of it's better review score, the Medion Life X44022[plb_2800991_price].