Selection of a gateway

hi, we want to build our own mesh network using Digi products. We have selected Digi Xbee S2C module for the nodes. We want you to help us in identifying the gateway by this Creteria- 1. Gateway should be configurable remotely from user created portal. 2. Network type shall be mesh and user defined (not digi mesh) . 3. Either LTE/Wi-Fi is okay for us.
We have confused between Digi Connect Port X4, Digi Xbee Gateway and Digi IX15-Xbee 3.
Help us in choosing one.

Please use the Contact Us | Digi International and reach out to our Sales team. They can help you determine the correct product to use.