Nokia C6-01 disposes of the QWERTY keyboard found on Nokia C6, bumps the camera resolution up from 5MP to 8MP with dual flash, and the screen technology to capacitive AMOLED, plus it looks way cooler than the Nokia C6. On top of that, the handset comes with the newer Symbian^3, rather than the Symbian S60 v5 on the original C6. Nokia is also sporting something named ClearBlack display for improved outdoor visibility in the C6-01.
Thick body (0.55 inches)
The Nokia C6-01 is most commonly compared with these phones: