So personally I don’t think I wouldn’t recommend the elear tbh, it just is worth it to get the elex imo. To be honest I think the elex is an upgrade overall to the sundara. The elex has a more slight w shape signature compared to the more neutral bright elex. The elex has a fair amount more detail, much better dynamics, is quicker sounding, and also has very good imaging and sound staging that can recreate a space very well. The elex sounds more natural as well. I really can’t think of where the sundara competes with it, perhaps the sundara has better bass extension, but I think the bass on the elex is just more refined. I think the elex is in a different tier of performance than the sundara (and the price reflects that)