Robot Vacuum Buying Guide: How to Choose the Right One (15 Key Features)

Not sure which robotic vacuum cleaner is right for you? You’re not alone. Today, mopping floors is one of the three most hated cleaning tasks in Australia, together with cleaning bathrooms and toilets¹. That’s why robot vacuums featuring automated cleaning, remote control, and self-emptying are becoming a popular solution.

With so many options available, it helps to know what to prioritise. This buying guide covers the key features to look for and the key considerations to help you make the right choice.

Why Buy a Robot Vacuum Cleaner?

A robot vacuum cleaner is worth the investment because it automates day-to-day floor cleaning with minimal effort from you. Instead of spending time pushing a vacuum cleaner on a routine, you can schedule cleanings and let the device work while you’re away or busy with things that matter. 

This can be a real help for busy households with kids, pet owners dealing with shedding, and people with mobility issues. Many newer robot vacuums and mops even include mopping functions, helping manage stains and fine dust created at home.

How to Choose a Robot Vacuum Cleaner: 15 Essential Features

When choosing a robot vacuum, you should match the features to your floors, layout, and budget. Prioritise reliable navigation for optimised coverage, strong suction for rugs and carpets, and maintenance features that fit your routine: look for anti-tangle brushes if you have pets, or auto stain-detection if you have toddlers.

This buying guide breaks down 15 key considerations when picking a robot vacuum.

1. Navigation Technology & Obstacle Detection

The first feature to consider is navigation technology that determines how smoothly and reliably a robotic vacuum cleaner navigates your home. There are three main types of navigation:

• LiDAR-based: LiDAR robot vacuums use laser scanning to improve robot mapping accuracy.
• Camera-based: Visual mapping in robot vacuums with a camera helps identify objects in the path.
• Sensor-based: “Bump-and-move” navigation is simpler, but it can miss edges and tight spots.

Other common navigation features include cliff sensors that help prevent falls on stairs and ledges, and robot vacuums with no-go zones that block messy or risky areas in the app. Meanwhile, robot vacuums for multi floors store multiple maps to help recognise different layouts.

Newer models like the DEEBOT X11 OmniCyclone upgrade robot vacuums with obstacle avoidance with AI navigation through AIVI 3D 3.0 Omni-Approach Technology, where a Vision-Language Model accurately captures object contours and guides the device to clean closely in real time.

2. Cleaning Modes

Smart vacuums come equipped with various cleaning modes, which you can easily manage through the compatible app. The 'auto' mode is a general cleaning setting for everyday use, while the 'spot' mode targets selected areas with intensified cleaning, such as high-traffic kitchens and living rooms. 

For tricky edges and corners, the 'edge' mode targets them and leaves no hard-to-reach spot behind. Selecting the right mode helps optimise cleaning results tailored to different areas of your home. Even better, you can preset cleaning sessions to suit your schedule.

3. Smart Features

Thanks to technological advancements, smart vacuums are getting smarter with app control, voice commands, and scheduling. The app serves as a one-stop control centre to monitor and manage your auto vacuum.

For instance, the ECOVACS HOME app lets you start, pause, or schedule runs with just a few taps. Moreover, voice assistants, like AGENT YIKO in the DEEBOT X11 OmniCyclone, understand natural voice commands, analyse cleaning needs, and remember your preferences, creating user-friendly vacuums for individuals with disabilities and the elderly.

4. Suction Power

Suction power affects how strongly a robot vacuum lifts debris from floors, and it’s usually measured in Pascals (Pa). Higher Pa can help with heavier dirt, but the “right” level depends on your flooring. When choosing a robot vacuum based on suction power, hard floors typically need less suction than carpeted floors. For example, the DEEBOT X11 OmniCyclone uses the BLAST Solution and generates up to 19,500 Pa of suction².

That said, don’t compare Pa alone if you’re not sure how to vacuum properly; brush or roller design and airflow also affect real pickup rates.

5. Mopping

If you want a more thorough clean, a robot vacuum with mop that applies steady contact and continuous rinsing can tackle fine particles and light stains in one go, which can help reduce allergy triggers.

To prevent cross-contamination, models like the DEEBOT X11 OmniCyclone feature a Triple Lift system that automatically raises the mop when cleaning carpets, while the side brush and main brush lift in other scenarios.

This premium model also features Hot Water Soak Washing in the station, refreshing the roller mop in temperature-controlled water up to 75°C to dissolve stubborn grime.

6. Climbing Ability

To move across rooms, robot vacuums need to cross door thresholds and sills. Since barrier crossing ability varies by model, check the specs in the manual before buying and compare them with your tallest threshold or door sill height.

Choose a robot vacuum for high thresholds, such as the DEEBOT X11 OmniCyclone with the TruePass Adaptive 4-Wheel Drive Climbing System, which clears sliding door tracks up to 4 cm³.

7. Noise Level

The next feature to consider is the noise level a vacuum makes, which is typically listed in the specifications. Other than fixing a smart vacuum that is too loud, quiet robot vacuums help maintain a peaceful living environment, especially in homes with thin walls, babies, or pets. They also make it easier to decide how often to run your robot vacuum to fit your routine. For instance, remote workers can take work calls while it runs in quiet mode.

8. Self-Emptying Capability

Another crucial feature to consider is self-emptying. When you shop for robot vacuums for large houses, self-emptying models can save you from having to stop and empty the bin multiple times during routine cleaning.

It works by transferring debris into a larger bag at the dock after each run. For that reason, pay attention to the dustbin and bag capacity on a smart vacuum with a docking station, since it directly affects how often you need to empty it manually. The DEEBOT X8 PRO OMNI, for example, auto-empties into a 3L dust bag, which can take up to 90 days⁴ to fill.

9. Battery Life

Robot vacuums can run freely in your home thanks to their cordless design, and how far they can go depends on how long a robotic vacuum cleaner battery lasts. Many robotic vacuum cleaners can operate for over an hour before needing a recharge. For larger homes, consider models with extended runtime or fast recharge features. One example is PowerBoost Technology, which allows the DEEBOT X11 OmniCyclone to restore 6% battery power in just 3 minutes during operation, supporting coverage of up to 1,000 sqm even at top settings.

10. Filter System

Whether you’re opting for robot vacuums for allergies or not, an efficient filter system is crucial for maintaining good air quality at home. The filtration system usually comes in multiple layers to provide stronger filtration. On top of choosing a strong filter, maintenance is equally important. Learning how to clean filters and replace them regularly helps extend how long your robot vacuum lasts.

11. Maintenance

To keep your auto vacuum performing at its best, set a simple routine to clean your robot vacuum cleaner. Empty the dustbin frequently, such as after cleaning high-traffic areas like kitchens, and check brushes and rollers often. Remove pet hair and string from the roller brush, since buildup can lead to a vacuum brush not spinning.

If your model has a mop, wash and dry it after use to help prevent your vacuum from smelling bad. To help you stay on top of maintenance, DEEBOT models can notify you when the dustbin is full or when parts need cleaning or replacement.

12. Size and height

While we all love the smart features of a robot vacuum, its size and height are equally important. In compact living spaces, a bulky design can make it harder to discreetly hide your robot vacuum while still leaving adequate clearance around the docking station. A slim robot vacuum also helps if your home has tight paths and low-height furniture like couches and cabinets.

13. Round or Square

Most auto vacuums on the market come in two shapes: round and square. How to choose between a round and a square robot vacuum? Round models are more agile and can pivot easily around obstacles like chair legs, but they may struggle to reach deep into corners. Robot vacuums for corners complemented with extendable brushes, like those in TruEdge 3.0 Extreme Edge Cleaning, to capture dirt along edges.

Square models, on the other hand, can track walls and corners more closely thanks to their angular design, but they often need a larger turning radius and more open space to manoeuvre.

14. AI Integration

AI robot vacuums improve how they navigate, react, and clean in real time. Take AI Stain Detection 2.0 in the DEEBOT X11 OmniCyclone as an example: it helps the robot identify stain severity and adapt its strategy accordingly. For tougher stains like soy sauce or coffee, it switches to a deeper grid-pattern clean from the edges inward, refreshes the mop automatically, then completes a follow-up cycle to finish the job.

15. Budget & Ongoing Costs

Designed with different features and technologies, robot vacuums let you set a budget based on what you’ll use daily. Budget robot vacuum cleaners come with core features, while mid-range and high-end models have stronger suction, smarter navigation, and more customisation options. Also factor in ongoing consumable costs, such as filters and brushes, as well as the cost of dust bags for bagged and bagless robotic vacuums.

Which Robot Vacuum Fits Your Needs?

Choosing the right robot vacuum can be as simple as matching features to your home and cleaning habits. Use the guide above as a quick filter, then check if these scenarios best describes your space.

1. Carpeted floors: Robot vacuums for carpets feature stronger suction power, auto-boost, anti-tangle brush, and auto-lift mopping for deep cleans.
2. Hard floors: A powerful mopping system with adjustable water output removes fine dust and light stains without moisture damage.
3. Pets and long hair: Smart vacuums for pet hairs save manual maintenance with anti-tangle brush designs, plus a bigger bin in the self-empty dock.
4. Clutter and cables: Robotic vacuums for cluttered houses combine advanced laser, camera and 3D sensors for accurate obstacle avoidance.
5. Large or multi-level homes: Longer battery runtime, continuous cleaning, and multi-floor mapping to maximise coverage.

To help you match those scenarios to real options, the table below shows how the latest DEEBOT models compare across the key features:

Disclaimer(s):

1. Aussies most hated chore revealed: https://www.mamamag.com.au/2020/12/03/aussies-most-hated-chore-revealed/
2. 19,500Pa: This data comes from ECOVACS laboratory. The suction power of DEEBOT X11 OmniCyclone can reach 19,500Pa.
3. 4 cm high: This data comes from ECOVACS laboratory. The barrier crossing ability of DEEBOT X11 OmniCyclone can reach up to 4 cm.
4. 90 days: This data comes from ECOVACS laboratory, which is based on the statistics of the number of times users disposed of traditional dustbins. The actual performance is subject to change due to frequency and cleaning area.