As competition intensifies in the robotic vacuum market, brands prioritize two strategic goals: democratizing advanced technologies and delivering premium features at mid-tier price points. Roborock’s latest release, the Roborock P20 Ultra, exemplifies this shift, offering flagship-level innovation in the 3,000–4,000 yuan range while redefining expectations for mid-to-high-end models.
Standout features include a groundbreaking 7.98 cm slim profile and an industry-first adaptive chassis system. The ultra-slim design enables the device to glide effortlessly under furniture like beds and sofas, addressing hard-to-reach areas traditional robots often miss. Meanwhile, the adjustable chassis enhances terrain navigation, allowing the Roborock P20 Ultra to surmount obstacles up to 4 cm tall—double the industry standard. This capability ensures seamless transitions over thresholds, carpets, and uneven surfaces, eliminating the need for manual intervention during multi-room cleaning.
Beyond its physical adaptability, the P20 Ultra elevates cleaning performance with a 12N pressure mopping system and 80°C heat-mapping technology, effectively tackling stubborn stains like coffee spills and grease while safeguarding floors from excess moisture. The accompanying base station further streamlines maintenance, featuring 80°C hot-water mop washing for deep sanitization and an automated self-cleaning mechanism that combines flushing, scraping, and drainage. This design minimizes user upkeep, with a detachable chassis for occasional thorough maintenance.
By merging compact engineering, terrain intelligence, and hygienic automation, the P20 Ultra positions itself as a versatile solution for diverse households, bridging the gap between high-end innovation and accessible pricing.
Design and Construction
The Roborock P20 Ultra cleaning robot combines functionality with a sleek, minimalist aesthetic, featuring a pristine white exterior. Its streamlined design ensures a clutter-free profile, with retractable components that seamlessly tuck away during standby mode. These include a laser navigation module, pressure sensors, and a laser rangefinder, maintaining the device’s polished appearance when not in use.
Control Panel and Sensors
The front panel adopts a clean, uncluttered layout, housing a power button, a cleaning trigger, and three integrated microphones for voice command recognition. A height-monitoring sensor positioned near the controls tracks elevation shifts in real-time, preventing the robot from becoming trapped in tight spaces and ensuring uninterrupted operation.
Navigation and Cleaning Features
At the front, advanced obstacle-detection sensors, charging contacts, and an embedded camera work in tandem to monitor cleaning progress and avoid collisions. The underside incorporates a high-performance 200-rpm mop system, applying 8N of downward pressure for deep scrubbing. This is enhanced by a hot-water mopping function, effectively dissolving stubborn grime.
Brush and Suction Technology
Engineered to tackle common cleaning challenges, the P20 Ultra employs a dual-conical spiral main brush and a corkscrew-shaped side brush, minimizing hair tangles and mechanical issues. Paired with a high-powered 22000Pa suction system and low-maintenance wheels, the device maintains thorough cleanliness both internally and externally.
Base Station Design
The accompanying base station mirrors the P series’ signature curved aesthetics, blending effortlessly into modern home decor. Its top panel opens to reveal a compartmentalized interior, featuring a disposable dust collection bag, a freshwater reservoir, and a wastewater tank for automated maintenance.
This rephrased version maintains technical accuracy while enhancing readability and originality, ensuring all key specifications and innovations are presented.
3D Mapping Technology
With its advanced 3D mapping capabilities, the Roborock P20 Ultra efficiently scans and models spaces up to 10 square meters in just two minutes. The system intelligently identifies furniture types and optimizes cleaning routes, enhancing overall efficiency.
Enhanced Cleaning Performance
Equipped with 20,000Pa suction power, the P20 Ultra offers five adjustable modes: Quiet, Standard, Strong, Max, and Max+. While Max+ delivers intense suction for deep cleaning, it consumes more power and generates noise, making the first four modes ideal for daily use. In Standard mode, the robot effortlessly handles common debris like hair and small particles. Testing confirms its ability to manage (melon seed shells) and similar dry waste effectively. For routine maintenance, Quiet mode is recommended to balance noise and performance.
Innovative Mopping System
The 12N dynamic pressure rotary mop mimics manual scrubbing by rotating at 200 RPM with 12N downward force, tackling stubborn stains. Paired with 80°C hot water mopping, the system maintains consistent moisture and sterilizes surfaces, excelling at mixed wet-dry messes. A dual-pass approach ensures thorough cleaning, while smart dirt detection triggers automatic mop rinsing and re-mopping of soiled areas.
Dual Robotic Arm System
Featuring telescopic side brushes and dynamic mopping arms, the P20 Ultra achieves near-complete coverage in corners and edges. The side brush extends to sweep debris from tight spaces, while the mop presses firmly against walls. Certified by TÜV Rheinland, its 99.5% corner coverage minimizes manual intervention.
Ultra-Thin Design & Obstacle Navigation
At 7.98cm thick—the slimmest in its class—the P20 Ultra accesses low spaces like under furniture. Its liftable LDS sensor enhances maneuverability. During testing, it navigated 2cm thresholds seamlessly and conquered 4cm barriers through adaptive wheel adjustments, protecting its chassis from scratches.
Self-Maintenance Capability
Upon docking, the Roborock P20 Ultra initiates its automated dust-emptying process. During testing, the robot’s dust compartment—prefilled with debris like crushed nutshells from prior cleaning—was efficiently emptied without manual intervention, ensuring hassle-free maintenance for users.
Before testing, the mop attachment was intentionally soiled with dark stains such as dried soy sauce. Through a dynamic 85°C hot water rinse cycle, the system successfully dissolved even stubborn grease and grime. This high-temperature deep-cleaning function, completed within 5–6 minutes, left the mop visibly stain-free, contrasting sharply with its pre-wash state.
Post-wash, the P20 Ultra activates an automated drying routine. By default, the base station employs a 3-hour dual-stage process: hot air is channeled through the baseplate while the mop is tilted at a 45-degree angle to maximize airflow. Simultaneously, the mop lifts away from the floor to promote ventilation. This design not only accelerates drying but also inhibits mold growth and odor buildup, ensuring long-term hygiene and functionality of both the mop and station.
Final Thoughts
Amidst growing uniformity in the competitive robot vacuum market, the Roborock P20 Ultra stands out as a game-changing innovation, addressing longstanding challenges in home cleaning. It tackles issues like navigating high thresholds, accessing hard-to-reach spots, removing stubborn stains, and eliminating the hassle of post-cleaning base station maintenance—setting a new industry benchmark.
During hands-on testing, the device’s standout feature proved to be its sleek 7.98cm profile. This ultra-thin design effortlessly reaches traditionally neglected areas under furniture like beds and sofas, ensuring comprehensive, gap-free coverage. Complementing this, the liftable dual LDS navigation system enhances precision while preventing collisions with low-hanging objects, streamlining the cleaning process.
A standout advancement is the Roborock P20 Ultra’s self-cleaning, auto-lifting chassis. This innovation eliminates manual intervention by intelligently detecting and overcoming obstacles like thresholds, reducing interruptions and errors. Whether tackling living rooms, kitchens, or bedrooms, the device operates seamlessly across varied floor transitions, delivering uninterrupted, whole-home cleaning. Its obstacle-crossing capability minimizes stalling and backtracking, boosting efficiency while cutting down on user effort—a lifesaver for homes with elevated thresholds or floor-to-ceiling doors.
On the performance front, the 22,000Pa suction power effortlessly extracts debris from crevices and deep carpet fibers. For mopping, the synergy of 12N downward force and 80°C heated scrubbing dissolves even the most stubborn residues, such as dried coffee or grease. The dual vibrating mop heads (4,000 oscillations/minute) ensure thorough stain removal without oversaturating hardwood floors, preserving their integrity.
Attention to detail further elevates the Roborock P20 Ultra. Features like the retractable LDS sensor to prevent damage and a spiral brush designed to resist hair tangles underscore its “no-compromise” engineering philosophy. Priced competitively in the mid-range segment (~¥3,000), it delivers flagship-tier performance and intelligence, redefining expectations for what a “budget powerhouse” can achieve. For households prioritizing efficiency and quality, the Roborock P20 Ultra earns its “Ultra” designation with distinction.