About a couple of months or so, we learned that Samsung would release a 5G variant of the Galaxy Z Flip, one with a model number of SM-F707B. A new report today from XDA-Developers corroborates the earlier report with a confirmation that Samsung has officially certified the "Samsung Galaxy Z Flip 5G" name along with the same model number from earlier reports. Based on earlier reports, a Korean model might be associated with a model number SM-F707N. Source: XDA-Developers Samsung's Galaxy Z Flip launched in February with a Snapdragon 855+ chipset, but it was not outfitted with a 5G...
Source: https://www.gsmarena.com/samsung_officially_certifies_galaxy_z_flip_5g_smf707b-news-43778.php