The lull in disclosure on the part of Ecovacs and Roborock, which together grab a domestic market share of more than 50%, has called their financial well-being into question.
Darob is one of dozens of startups that have made its foray into vacuum cleaning robotics, a segment already teeming with entrenched players like Ecovacs (科沃斯, 603486.SH) and Roborock (石头科技, 688169.SH) as well as up-and-comers like Narwal (云鲸).