SFR–M_★ relation at 3.7 < z < 5.1. In gray is the entire ALT Hα sample, while highlighted in pink is the robust subsample. Circles show the median value when binning in stellar mass (upper panel). We are > 90% mass complete for galaxies with log(M_★/M_⊙) > 8.5 (filled circles). For reference, we show the SFMS fits by Speagle et al. (2014, together with its 0.3 dex scatter) and Popesso et al. (2023) from a compilation of literature observations and the fit by Khusanova et al. (2021) from ALMA-ALPINE observations. Dotted lines mark extrapolations to these relations based on their lower limits on M_★. Solid pink line and shaded region denote respectively the best-fit line and 1σ interval about the SFMS using the reference model that accounts for the selection function (see Sect. 3.3).