Apparently there is a VIP-edition with 16GB RAM, still under 200$.
https://www.doogee.com/products/u10-vip-edition?variant=4431...
If that would be real RAM, and not only swap I'd feel tempted.
Edit: Never mind, already sold out...(meanwhile, 15 minutes, or so)
Is not real. RK3562 supports maximum 8GB.