[Jonty30]

I doubt lab grade, but probably decent enough for general use. If you can get 80% accuracy through a cell phone, it gives you something to start with.

[Jonty30]

I should probably add that I mean just a normal cellphone and not one that was built to do spectronomy or spectrographing.

[TheDon]

Performance Matches Conventional Devices In proof-of-concept testing, the researchers found their pixel-sized spectrometer was as accurate as a conventional spectrometer and had sensitivity comparable to commercial photodetection devices.