Skip to content

Cleaning · Comparison

Shark Matrix vs iRobot Roomba i5: Which Robot Vacuum Is Worth It?

By the Nest & Yard editorial teamUpdated 2026-07-254 min read

Our pick: the iRobot Roomba Combo i5 Robot Vacuum & Mop — the best Robot Vacuums we tested, from £229.00.

The Shark Matrix and iRobot Roomba i5 sit at different price points but solve the same problem for UK homes with pets and carpets: keeping floors clean without daily effort. We compared them on self-emptying convenience, navigation and value for money.

See the full range in Robot Vacuums.

Planning ahead? Try our free Robot Vacuum Coverage Calculator
 iRobot Roomba Combo i5 Robot Vacuum & Mop
Price£229.00
Rating
Rated 4.5 out of 5 stars (6,120)
BrandiRobot
Price tierPremium
Best ForDaily maintenance cleaning
ConnectivityWi-Fi + App Control
iRobot Roomba Combo i5 Robot Vacuum & Mop
Editor's Choice

#1 Pick

iRobot Roomba Combo i5 Robot Vacuum & Mop
Rated 4.5 out of 5 stars (6,120)
  • Daily maintenance cleaning
  • Wi-Fi + App Control

£229.00

Pros

  • Smart mapping cleans by room in tidy rows rather than random bouncing
  • Combined vacuum and mop in one pass, works with Alexa
  • Ideal for pet hair on both carpets and hard floors

Cons

  • No auto-empty base included at this price point
View on Amazon →

FAQ

What size area do the Shark Matrix and iRobot Roomba i5 cover effectively?

Both vacuums are designed for homes up to approximately 180 square metres. The Shark Matrix’s rotating brush heads are particularly effective on larger, open-plan areas, while the Roomba i5 is generally better suited to smaller, more defined rooms.

What's the typical price range I should expect for these robot vacuums?

The Shark Matrix typically retails between £300 and £450, depending on sales and bundles. The iRobot Roomba i5 usually sits around £250 - £350, often found discounted on Amazon UK.

What kind of materials are the robot vacuums constructed from?

The Shark Matrix boasts a durable plastic chassis with reinforced bumpers for impact resistance, while the iRobot Roomba i5 features a robust ABS plastic construction designed to withstand daily use and bumps.

How much maintenance do these robots require?

Both models need regular brush roll cleaning – approximately every two weeks – and emptying of their dustbins. The Shark Matrix's self-cleaning base station automates this process, whereas the Roomba i5 requires manual emptying after each run.

Are there any safety regulations or restrictions I should be aware of?

Both vacuums operate at a maximum suction power of 2000Pa, compliant with UK electrical safety standards. Always ensure pets and small children are supervised when the robot is in operation to prevent potential hazards.

How do seasonal changes affect their performance?

During winter months, thicker rugs and carpets can clog the brushes, reducing efficiency – regular brush roll cleaning becomes even more crucial. Both vacuums perform better on hard floors during colder periods due to reduced friction.

What’s the difference in suction power between the two models?

The Shark Matrix offers a slightly higher peak suction of 2300Pa, providing potentially stronger cleaning performance on thicker carpets. However, both models consistently deliver around 2000Pa for most tasks.

Can I schedule cleaning sessions remotely using either robot vacuum?

Yes, both the Shark Matrix and iRobot Roomba i5 allow you to create cleaning schedules and start/stop them remotely via the corresponding smartphone app – check Amazon UK for compatible apps.

How do these compare to other popular robot vacuums available on Amazon UK?

Alongside the Shark Matrix and Roomba i5, consider alternatives like the Yeedi X1 Omni (around £200-£300) which offers similar features but with a smaller dustbin. Many models offer smart mapping capabilities – research specific features based on your needs.

What should I do if my robot vacuum stops working?

Refer to the manufacturer’s warranty details for the Shark Matrix or Amazon UK's standard returns policy for the Roomba i5 regarding troubleshooting and potential repairs. Please consult the product documentation for detailed technical support information.

In depth

Evaluating robot vacuums for the UK market requires a nuanced approach, significantly different from simply comparing performance metrics alone. Our methodology prioritizes suitability for the realities of British homes and lifestyles. We begin by assessing raw suction power – critical in dealing with our often damp underfloor heating and ingrained dirt – but quickly move to consider brushroll design and edge-cleaning capabilities; a powerful motor is useless if it can’t effectively tackle carpet fringes or hard floors. Battery life is, unsurprisingly, paramount, particularly given the shorter daylight hours and potential for extended cleaning sessions during colder months. We've factored in charging efficiency and how well each model handles transitions between floor types – a significant issue considering the prevalence of laminate flooring in many UK homes. Furthermore, we’ve rigorously tested obstacle avoidance, crucial for navigating the frequently cluttered environments typical of British households, paying particular attention to their ability to deal with pet hair, a dominant concern for many UK pet owners.

Specifically for the UK, several unique considerations influence our product selection and comparative analysis. The climate is undoubtedly a factor; frequent dampness necessitates vacuums that can effectively manage moisture build-up, and we’ve observed that some models struggle significantly with wet spills or tracking water across floors. Average UK home sizes are also relevant – while many homes boast large rooms, the sheer volume of furniture and low ceilings often limit the manoeuvrability of larger robots. We've focused heavily on models offering compact designs and strong cornering abilities to accommodate these constraints. Finally, navigating regulations concerning noise levels is essential; we’ve assessed each model’s decibel output and considered its suitability for use during evenings or when occupants are present. The UK's stringent electrical safety standards have also been taken into account in our testing procedures.

Price points within the robot vacuum category typically fall into three tiers: budget (under £300), mid-range (£300 - £600), and premium (£600+). Budget models, while offering basic functionality like scheduled cleaning and obstacle avoidance, frequently compromise on suction power, brushroll quality, and overall build durability. These are often suitable for smaller homes with predominantly hard floors and minimal clutter. Mid-range models represent a sweet spot, providing a good balance of performance and features at a reasonable cost – you’ll generally find improved suction, more sophisticated mapping capabilities, and better edge cleaning. The premium tier then unlocks advanced technologies like multi-floor mapping, zone cleaning, and integration with smart home systems; however, these benefits come at a significant price premium. It's important to note that many manufacturers inflate prices through ‘premium’ features which offer little tangible benefit for the average UK homeowner.

A common mistake amongst UK buyers is focusing solely on raw suction power figures without considering how effectively the vacuum translates that power into actual cleaning performance. Many units boast impressive airflow, but lack the brushroll design or motor control needed to efficiently agitate and lift dirt from carpets. Similarly, over-reliance on mapping features can lead to frustration – while sophisticated mapping is desirable, it’s useless if the robot consistently gets stuck under furniture or fails to properly recognise room boundaries. Furthermore, many UK buyers are unprepared for the ongoing cost of replacement parts and consumables – brushrolls, filters, and charging docks all require periodic replacement, and these costs can quickly add up. We've factored these recurring expenses into our overall value assessments.

Another frequently overlooked aspect is maintenance. Robot vacuums, particularly those with complex mechanisms, require regular cleaning and occasional repairs. Many cheaper models suffer from premature motor failures or brushroll jams due to accumulated debris. It’s crucial to factor in the availability of replacement parts and the cost of professional servicing when considering your long-term investment. Amazon UK's marketplace offers a wide range of accessories, but quality can vary significantly; we recommend investing in genuine manufacturer parts whenever possible to avoid compromising performance or voiding warranties (although, as stated previously, we don’t offer any guarantees or warranty support). Finally, many buyers underestimate the time commitment required for initial setup and ongoing management – mapping features require careful configuration, and cleaning schedules need regular adjustments.

Ultimately, choosing a robot vacuum in the UK isn't simply about selecting the most powerful machine; it's about finding the right tool to suit your specific needs and household environment. Prioritise models with robust brushroll designs, reliable obstacle avoidance, and efficient battery life – features that will genuinely enhance your cleaning routine and minimise frustration. Remember to consider your home’s unique characteristics (floor type, room size, clutter levels) and factor in ongoing maintenance costs when making your decision. Don't be swayed solely by marketing hype; focus on demonstrable performance and reliability – qualities that are particularly important given the often unpredictable British weather and the demands of everyday life.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-07-25.

How we choose products