Okay, we got the similarities between SLS and MJF. There are some major differences, though, which will be key when you decide which one to use.Materials
SLS has been around for much longer and was originally patented in 1997. The technology has undergone several advancements, making it possible to use different materials (allowing for more flexibility of choice), such as PA 11, PA 12, PEBA 2301 3D, Alumide, TPU, etc.
MJF, on the other hand, is a new technology, made commercially available in 2017. It can work with a lot less materials such as PA 11, PA 12, and TPU.Feature resolution and accuracy
Both SLS and MJF provide high dimensional accuracy. However, when comparing both technologies, the functional resolution of SLS parts is slightly better than that of MJF. However, since both techniques are prone to warping, you should definitely avoid large flat areas when 3D printing.