We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using DXO Analyzer software to generate the data to produce the graphs below.
A high signal to noise ratio (SNR) indicates a cleaner and better quality image.
For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.
Our analysis shows that the cameras' results are close and while the Nikon Coolpix S4150 tops the signal to noise ratio results, the Samsung ST93 is only just behind. Looking at dynamic range the Samsung ST93 puts in a good performance across the sensitivity range scoring over 9EV up to ISO 400, and is only beaten by the Canon PowerShot A3300.
JPEG images from the Samsung ST93 are on a par with those from the Nikon Coolpix S4150.