@Marko77
Unfortunately, i couldn't find specific information in our knowledgebase regarding the 5G chip generations used in different Deco models or direct comparisons of their performance under the conditions you described. @David-TP any idea if they both use the same 5G chips?
However, regarding external antenna optimization for your current X50-5G, I can share some guidance on verifying and improving external antenna performance:
Before and after adjusting your external antenna setup, you can check signal quality metrics in the Deco app by going to MORE > Internet and scrolling down to view readings like RSRP, RSRQ, and SNR. These are negative values where higher numbers indicate better signal (for example, -78dBm is better than -80dBm). This can help you determine if your current antenna configuration is optimal.
Make sure you have enabled the external antennas in the Deco app by going to MORE > External Antennas after properly installing them on your main Deco unit.