Both cameras offer 12 megapixels, a 5x wide-angle zoom and 2.7-inch LCD screen, but the S640 steams ahead in the specs race thanks to an autofocus offering speeds as fast as a DSLR and a start-up time of 0.7 seconds – touted as the fastest in the compact camera industry.
Similarly to its S1000pj sibling, the S640 also boasts a good performance in low light conditions thanks to an ISO range up to 6400, and will be available in a choice of black or silver.
The S570 on the other hand is being aimed at the "fashion conscious" in a choice of red, black and silver, and makes taking good photos as easy as possible, as it chooses the correct mode for your snap based on the distance, brightness and positions of faces in shot.
It also boasts a Smart Portrait System with blinkproof technology, taking two photos automatically when the subject smiles and only saving the one where eyes are open, and the "skin softening" function for that airbrush effect to keep your mates happy.
Both cameras are set to hit shelves in September, and will set you back £249.99 for the S640 and £199.99 for the S570. Be sure to check out our hands-on pictures with their new Coolpix sibling, the S1000pj projector camera.