Alza discounted this robotic vacuum cleaner by 40%. Is it worth buying?

The combination of vacuuming and mopping in one robot with automatic maintenance is among the most convenient cleaning solutions. You can now get the iRobot Roomba Plus 505 Combo with AutoWash station at Alza for 10 794 Kč after entering the code ALZADNY40, while before the promotion it cost 17 990 Kč. A 40% discount is definitely worth noting, but the question is whether this model is truly worth it. Let’s take a closer look at the reasons why you might (not) want it.

Quick summary:
✅ Makes sense if you want a robot that vacuums, mops, and washes its own mops – and you don’t want to take care of it for weeks.
⚠️ Consider if you have very low furniture (LiDAR increases height) or expect a flawless app from day one.
💡 For 10 794 Kč, this is one of the cheapest ways to get a premium combo robot with an AutoWash station from an established brand.

Why this Roomba is interesting

The Roomba Plus 505 Combo belongs to the mid-range of iRobot’s combined robots. The main argument for it is the AutoWash station, which takes over virtually all maintenance: it automatically empties the dustbin, washes the mopping pads, and dries them with warm air. The manufacturer states up to 75 days without intervention – in practice, this depends on the area size and mopping frequency, but even so, it significantly reduces work compared to conventional robots.

The robot combines vacuuming with 70× higher suction power than older Roomba 600 series models and mopping with retractable DualClean pads with PerfectEdge technology. According to the manufacturer, these cover 18% more area than classic fixed pads and get closer to walls and into corners.

Key parameters in practice

Navigation relies on ClearView Pro LiDAR combined with a camera and PrecisionVision artificial intelligence. The robot quickly creates a map of the apartment, recognizes obstacles (cables, socks, toys), and systematically navigates rooms without unnecessary collisions. Operating time is 180 minutes on a single charge, noise level is stated at 72 dB – which corresponds to a regular vacuum cleaner.

The SmartScrub function mimics a back-and-forth manual motion and, according to the manufacturer, mops 2× more thoroughly than the standard mode. The automatic lifting of mops over carpets is also practical – allowing the robot to transition between hard floors and carpets without interruption.

Practical aspects: station, app, dimensions

The AutoWash station is quite bulky – expect it to take up more space than a standard charging base. On the other hand, it handles everything automatically: dust emptying, refilling clean water, rinsing mops, and drying them. The robot itself measures 10.6 × 35.1 × 35.7 cm and can overcome thresholds up to 2 cm high.

Control is via the Roomba Home app (available in Czech) or by voice via Google Assistant and Amazon Alexa. In the app, you can set a schedule, select rooms to clean, adjust suction intensity and wetting. The robot supports four modes: vacuuming only, mopping only, a combination of both, or vacuum first and then mop.

What users say

On Alza, the Roomba Plus 505 Combo has a rating of 3.9 out of 5 (14 ratings) and 71% of customers recommend it. Users primarily praise the mopping quality, fast mapping, and easy maintenance thanks to the AutoWash station. Several reviews mention that the robot mops significantly better than previous models without rotating mops.

Criticism mainly focuses on the app – multiple users report occasional connection losses and the inability to save their own cleaning plan (you have to create it again). Some point out that the LiDAR sensor increases the robot’s height, so it won’t fit under low cabinets or beds where older models without LiDAR could. There is also a complaint about the noise level when cleaning mops in the station.

It is important to mention that Alza states a return rate of 10.48% for this product, which is a higher value. One user reported water leakage from the docking station after a week of use, another problems with anti-fall sensors. On the other hand, iRobot has an available service network in the Czech Republic, which is a great advantage for robotic vacuum cleaners compared to some Chinese brands.

When it doesn’t make sense

If you have very low furniture (beds, cabinets under 11 cm), the robot won’t fit underneath – and that can be a problem if dust accumulates there. Also, if you expect an app without any glitches, be prepared for occasional tweaking. And if you have a large household with a lot of pet hair, some users in foreign markets report that the dustbin fills up faster than they would expect.

However, for 10 794 Kč, you get functionality that often costs significantly more from competitors – or is completely missing (automatic washing and drying of mops).

Verdict: who it’s worth it for

The Roomba Plus 505 Combo with AutoWash station for 10 794 Kč (with code ALZADNY40) is a solid choice for those who want a combined robot with minimal maintenance from an established brand. Automatic emptying, washing, and drying of mops save time and hassle. However, expect a higher return rate and occasional app issues – and verify if the robot will fit under your furniture.

If this model didn’t appeal to you, but you are looking for a robotic vacuum cleaner, check out the current Alza Days, where other discounted models regularly appear.

Do you have a robotic vacuum cleaner at home, or do you still prefer the classic?