The Airrobo T20 Plus weighs 3800 g and measures 350 × 350 × 95 mm, giving it a total volume of 11637.5 cm³, while its docking station occupies 19288.08 cm³. It operates at an audible noise level of 55 dB and includes both a HEPA filter and an allergy filter, making it suitable for households that require finer air filtration. The robot is compatible with Google Assistant and Amazon Alexa for voice control integration. Its auto-empty station can hold collected debris for an estimated 60 days before needing to be emptied, and the product is backed by a 1-year warranty.
The Airrobo T20 Plus comes equipped with mapping and route mapping, allowing it to navigate systematically, and supports no-go zones and virtual barriers to restrict cleaning to designated areas. An obstacle sensor and anti-fall sensor help it avoid collisions and drops, and the anti-stuck feature reduces the likelihood of it getting stranded during a session. It is self-emptying and returns to its dock automatically once a cleaning run is complete. Carpet detection and water level adjustment are both present, and the unit supports mop cleaning with mop raising, though mop drying is not available. Scheduling, Wi-Fi connectivity, smartphone remote control, voice prompts, and a physical remote control are all supported, while problem area cleaning is not included.
The Airrobo T20 Plus has a dustbin capacity of 0.34 litres and operates without bags, instead relying on washable filters that are included in the box. It provides a full indicator to signal when the bin needs attention, though it does not feature an onboard display. The unit uses a single side brush rather than twin side brushes, does not automatically adjust its height to suit different floor surfaces, and lacks automatic height adjustment entirely.
The Airrobo T20 Plus delivers 2600 Pa of suction power and is capable of cleaning all floor types, with four cleaning modes available to suit different situations. A dirt sensor is built in, allowing the robot to detect dirtier areas and respond accordingly during a clean. Mopping is not supported, and the unit does not include UV light functionality.
The Airrobo T20 Plus is powered by a 2800 mAh battery that provides up to 150 minutes of runtime per charge, with a full recharge taking approximately 5 hours. During operation it draws 25W of power, and an auto-off function is included to cut power when not in use. The battery is not removable, so charging is handled through the docking station rather than by swapping cells.