Reviewers who tested thresholds were strongly positive, saying the chassis lift helped the Z70 cross raised thresholds or rugs without getting stuck.
Pros: Noise level, Maneuverability and Handling
Cons: Clogging and debris prevention, Bin and Bag
Best 2025 Robotic Vacuums for Adaptive chassis lift
Narrow by product type
Showing Robotic Vacuums only. Switch back to all Vacuums anytime.
Release year
Adaptive chassis and threshold climbing receive some of the strongest praise, repeatedly clearing high thresholds that stop typical robots.
Pros: Accessories and Tools, Hard Floor — Fine Dust Pickup
Cons: Airflow blowback, Scratch resistance
Adaptive chassis lift was consistently praised for clearing thresholds and outperforming expectations.
Pros: Obstacle Avoidance (Robot), Carpet — Medium-Pile Pickup
Cons: Dirty water sensor, Runtime
Adaptive chassis lift was one of the strongest themes, with repeated praise for crossing thresholds that stopped other robot vacuums.
Pros: Hair Pickup — Carpets, Noise level
Cons: Crevice / Groove Pickup (Hard Floors), Edge‑Following Accuracy (Robot)
The chassis-lift and threshold system impressed many reviewers, but some found it temperamental or limited on real thresholds.
Pros: Hair‑Wrap / Tangle Resistance, Versatility
Cons: Stair Cleaning, Clogging and debris prevention
Threshold handling earned praise in one review because the E20 cleared raised door thresholds better than some pricier robots.
Pros: Assembly and Setup, Price and Value
Cons: Mopping performance, Software-update support / feature longevity
The lift chassis helped with thresholds and rugs, but reviewers found limits and one warned against a raised-body carpet setting.
Pros: Tool-change simplicity, Battery and Charging
Cons: Cord management, Support and Reliability
Threshold and chassis handling are rated well, with reviewers noting it can cross half-inch-plus and 3/4-inch transitions.
Pros: Assembly and Setup, Self-cleaning cycle
Cons: Odor control, Fresh Liquid Pickup Speed
Threshold and chassis-lift performance was highly context-dependent, ranging from excellent climbing in some homes to unimpressive or stuck behavior in others.
Pros: Pet-Ready Features, Suitability for heavy-duty use
Cons: Value-for-money, Area Rug Handling
Threshold and chassis-lift feedback was mixed: many reviewers liked Easy Leap, but others found it limited or overpriced for thresholds.
Pros: Hair‑Wrap / Tangle Resistance, Aesthetic design and finish
Cons: Dirty water sensor, Scratch resistance
Adaptive lift and threshold handling were useful for uneven areas, though evidence positioned it below the most capable competitors.
Pros: Overall cleaning convenience, Streaking / Residue
Cons: Suitability for small spaces, Dock noise
Threshold and chassis-lift evidence is mixed-positive, with one reviewer clearing bathroom thresholds easily and another calling a 2 cm obstacle result average.
Pros: Innovation compared to competitors, Hard Floor — Large Debris Intake
Cons: Emptying and Mess Control, Cord management
Adaptive lifting evidence was mixed: one preview praised lift-up design, while The Gadgeteer said the sweeper brush failed to lift in a wet mess.
Pros: Carpet — Medium-Pile Pickup, Heating element
Cons: Clogging and debris prevention, Hair-removal channel issues
Threshold handling is mixed: one review praised 2 cm obstacle navigation, while another found the reduced chassis capability limiting.
Pros: Mopping performance, Controls and UI
Cons: Area Rug Handling, Accessories and Tools
Chassis-lift evidence was negative because reviewers said it could not handle bigger thresholds or steps.
Pros: Suction and Airflow, Filtration / Dust Containment
Cons: Water tank, Versatility
Adaptive chassis lift was a clear weakness because the S5A lacks it and cannot handle the same high thresholds as pricier models.
Pros: Clogging and debris prevention, Floorhead design
Cons: Adaptive chassis lift, Solution / Liquid system