XPS relies on the photoelectric effect, where irradiating a material with X-rays causes the emission of core electrons. The kinetic energy of these emitted electrons is measured, which can be directly ...

Those are the recently refreshed versions of the HP Spectre 13 and Dell XPS 13. To get a sense of which one might be the best fit, we've compared the specs and prices of HP's newest Spectre 13 ...