The OnePlus 11, the latest flagship smartphone from the Oppo sub-brand, has been announced for the Chinese market ahead of its global launch next month. Its feature set doesn’t hint at any major departures from OnePlus’ previous flagships, but the company has opted for a bold new circular design for the phone’s rear camera bump, which its press release says is “inspired by black holes.” Alongside it, OnePlus has announced a new pair…