I have recently got a Deco X50-5G router which I am using with a 5g SIM.

It is working well (I get around 130mb) and now I want to distribute the signal around the house using other Deco units.

Should I simply get more X50s or are there any advantages to getting the more expensive XE75s instead?

For example the X50 is dual band and the XE75 is tri band but does that make any difference if the broadband is originating from the X50.

Regarding ethernet backhaul. At the moment I have no easy way of using ethernet backhaul from the X50-5G. Would it be worthwhile getting an ethernet cable run from the X50 to at least one of the XE75s or X50s or is that only useful if they all have ethernet backhaul?

Thanks for any help with this.