true, ds stands for dual sim, but unfortunately, the phones are not identical at all. they are not sharing the same roms, and while rom development is pretty active for the "regular" g6, those poor h870ds users are still trying to get root for their phones. that's one of the reasons i abandoned my plans of buying a g6.Perhaps the "DS" stands for dual sim and the phones are in every other way identical.
in a nutshell:
h870ds: double sim, quad dac, no wireless charging, no root
h870: single sim, regular (qualcomm) dac, wireless charging, root + custom roms