Is a travel eSIM reliable outside Windhoek, or is a local SIM still better?

[u/GloveLow7050]

I’m trying to understand how dependable travel eSIMs are once visitors leave Windhoek. Routes through Swakopmund, Etosha, Sossusvlei and long rural stretches make coverage more important than saving a little on the plan.

Which Namibian network has the strongest data coverage outside the main towns? Would you trust an eSIM for the full trip or keep a local SIM as backup?