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By utilizing the spatially-resolved photometry of galaxies at $0.2<z<3.0$ inthe CEERS field, we estimate the resolved and unresolved stellar mass viaspectral energy distribution (SED) fitting to study the discrepancy betweenthem. We first compare $M_{\ast}$ derived from photometry with and without theJWST wavelength coverage and find that $M_{\ast}$ can be overestimated by up to0.2 dex when lacking rest-frame NIR data. The SED fitting process tends tooverestimate both stellar age and dust attenuation in the absence of rest-frameNIR data, consequently leading to a larger observed mass-to-light ratio andhence an elevated $M_{\ast}$. With the inclusion of the JWST NIR photometry, wefind no significant disparity between the resolved and unresolved stellar massestimates, providing a plausible solution to the conflict between them out to$z\sim 3$. Further investigation demonstrates that reliable $M_{\ast}$estimates can be obtained, regardless of whether they are derived fromspatially resolved or spatially unresolved photometry, so long as the reddestfilter included in the SED fitting has a rest-frame wavelength larger than10000 \AA.

Solution to the conflict between the resolved and unresolved galaxy stellar mass estimation from the perspective of JWST