The Dreame L40s Ultra CE and Shark Stratos AV2700ZE both aim to provide comprehensive floor cleaning, but they diverge significantly in measurable performance and value. The most striking difference lies in suction power: the Dreame boasts an industry-leading 13,000Pa, a figure that promises deep cleaning across both hard floors and carpets, effectively pulling up embedded dirt and pet hair. In contrast, the Shark Stratos' suction power is listed as 0Pa in its specifications, making a direct numerical comparison impossible and potentially misleading if its actual performance is strong. However, based on the provided data, Dreame holds a clear, quantifiable advantage in raw suction. Mopping functionality also sees the Dreame take an edge. While both feature mopping and self-cleaning bases, the Dreame L40s Ultra CE distinguishes itself with a substantial 10.5mm mop lift when detecting carpet. This high lift ensures that even thicker rugs and carpets remain completely dry during vacuuming, a critical feature for mixed-flooring homes. The Shark's "sonic mopping" scrubs tough stains and "avoids carpets," but it does not specify a mop lift height, implying it might not be as effective for high-pile carpets or could risk dampening them. Both robots feature self-emptying and self-cleaning bases, enhancing user convenience. The Dreame's base holds an impressive 100 days of dust, significantly reducing manual intervention, compared to the Shark's 60-day capacity. The Dreame also includes a TriCut Brush designed to cut hair and prevent tangles, a thoughtful addition for pet owners. While the Shark has a self-cleaning brushroll, the specific cutting mechanism of the Dreame's TriCut brush often proves more effective against long hair.