Collection of ChMs for M dwarfs in NGC 6397. The leftmost panel reproduces the Δ_{F606W–F322W2} vs. Δ_{F814W–F150W2} ChM derived from NIRCam photometry, as presented in Fig. 11. In this panel, probable 1P and 2P stars are colored teal and crimson, respectively. The second panel from the left displays the ChM constructed from Euclid photometry, introduced in Fig. 10. Here, teal and crimson points with error bars indicate the average positions of 1P and 2P stars, respectively. The remaining panels present ChMs obtained by combining Euclid and NIRCam photometry. Large dots highlight stars with data available from both NIRCam and Euclid.