Simulated SPHEREx and 7DS data used in this study. The gray plot shows the mock SED from Feder et al. (2024). The left column of the figure shows the simulated photometry of the deep dataset (SPHEREx deep + 7DS IMS) and the right column shows that of the wide dataset (SPHEREx full-sky + 7DS WTS), with the same example galaxies sorted in ascending i magnitudes. The blue markers show the mock datapoints from the 7DS, and the orange markers show the simulated SPHEREx datapoints.