Dual spraying

Elkios Essentiel (window-cleaning robot with dual ultrasonic spraying): our review

Brand: ElkiosOur methodology

Overall ratingiScores calculated by comparing verified specifications across our catalogue. No hands-on testing. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.
9.3/10
Documentation: partialNot confirmed by a verified source: Suction pressure, Water tank capacity, Backup battery holding time.
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An overall score and radar chart require at least three verified comparable criteria.

Our full methodology

Scores calculated by comparing verified specifications across our catalogue. No hands-on testing. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.

Equipment9.3/10: 7 of 17 tracked features documented, ahead of 89% of the models in the catalogue · n = 27
Our full methodology
The short version

Automatic spraying gives Elkios Essentiel a reason to join your cleaning routine

Automatic ultrasonic dual spray gives Essentiel a clear role in mirror and tile upkeep. Pairing it with remote control makes practical sense. Keep expectations grounded: the spray system helps apply liquid, while the finish still depends on what needs cleaning.

Verdict

9.3/10

Essentiel earns consideration for a familiar bathroom assignment

Under the vanity lights, yesterday's splashes can look like today's assignment. Essentiel's automatic dual spray and remote control make a persuasive combination for that recurring chore. Its equipment is among the best on this site on that criterion. A useful helper needs a useful job.

Our verdict: It is worth considering for household mirrors and tiles. For picture windows, choose a robot explicitly approved for the glass you need cleaned.

Worth noting The need to stay connected to an outlet is its main drawback. Avoid it if your intended setup cannot accommodate continuous mains power.

Review by Romain Brunel, founder of Window-cleaning Robot Picks

Who it's for

Give this little robot the mirror chore you keep postponing

  • Households with frequently splashed bathroom mirrors
  • Buyers seeking automatic ultrasonic spraying
  • People who prefer remote control
  • Household cleaning routines involving tiles

This model suits households where a broad bathroom mirror keeps collecting splashes between cleaning sessions. Automatic spray and remote control give you reasons to bring a robot into that routine. It also supports tiles, making it worth considering when those surfaces account for a recurring share of your household wiping.

Less suitable if

This is a less convincing choice if the main goal is reaching the exterior of a picture window or tackling an entire sunroom. Those jobs call for explicit compatibility with the intended glass, plus a practical way to position and retrieve the robot.

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Dimensions

What does its 7 cm height tell you about clearance?

Body thickness7 cm
LengthNot specified
WidthNot specified
WeightNot specified
Tank capacityNot specified
Cable lengthNot specified

Specifications

What the spec sheet says about this window cleaning robot

Robot height7 cm
Power supply during cleaningMains-powered
Manufacturer's intended useHousehold
Compatible surfacesMirrors, Tiles
SprayingDual spray, Ultrasonic, Automatic
ControlRemote control
Safety featuresUPS backup battery
Manufacturer’s intended useDomestic
Listed surfacesGlass, tiles, mirrors
Backup adhesion durationNot disclosed

Pros

This robotic window cleaner takes liquid application off your hands

  • Automatic liquid application during cleaning
  • Dual spray with ultrasonic spraying
  • Remote control for managing the job
  • Verified compatibility with mirrors and tiles
  • UPS backup battery intended to maintain attachment during an outage

Cons

The outlet requirement sets a firm limit on where you can work

  • Mains connection required throughout cleaning
  • Body height does not establish clearance beside fixtures
  • Spraying cannot promise the removal of stubborn marks

Our scores explained

Equipment is where Essentiel earns its strongest recommendation

Every model on the site is scored on the same criteria, using the same scale: its position among models with verified data for that specification. Last place earns 6.5, first place 9.6, and the rest are scored in proportion to their rank. Here is how this model's scores are calculated.

Two model counts: the rank and average include product pages on this site scored for the criterion; the calculation compares the model with all catalogue models whose specification is verified, with or without a product page. A score assigned at publication may remain without a verified specification, so the first count can sometimes be higher.

Equipment: 9.3/10

Elkios Essentiel scores 9.3/10 on this criterion. Across the 27 product pages on the site with a score for this criterion, the average is 8.1: above average, Rank 3 out of 27.

View calculation
Shared baseline: last place in the ranking6.5
7 features found out of 17 tracked: 24 perform worse, 2 perform better, 1 are tied (including this model), among the 27 catalogue models with this specification verified+2.8
Equipment score9.3/10

Calculation: (24 + 1 ÷ 2) ÷ 27 = 90.74% of the ranking; 6.5 + 90.74% × 3.1 = 9.3/10, rounded to one decimal place.

Recorded features: Compatible surfaces (Mirrors, Tiles), Spraying (Automatic, Dual spray, Ultrasonic), Control (Remote control), Safety features (UPS backup battery).

The retailer does not specify: Indoor / outdoor cleaning, Cleaning modes. These features are not counted.

The retailer does not specify “Suction pressure”: this criterion earns no points and is excluded from the overall score.

The retailer does not specify “Water tank capacity”: this criterion earns no points and is excluded from the overall score.

The retailer does not specify “Backup battery holding time”: this criterion earns no points and is excluded from the overall score.

Our full methodology

Detailed analysis

You wipe the bathroom mirror, put the cloth away, and someone promptly supplies another splash. Elkios Essentiel brings automatic ultrasonic dual spray and remote control to that recurring household chore, with compatibility for mirrors and tiles. Integrated spraying has clear appeal if you are tired of handling every step yourself. It is a convincing feature mix for bathroom upkeep, with an electrical connection to plan before the robot gets to work.

The Essentiel window cleaning robot has a 7 cm body, but what about mirror clearance?

The medicine cabinet is closed, the sink is clear, and the bathroom mirror still carries a scatter of toothpaste specks. The Essentiel window cleaning robot supports mirrors and tiles, so this familiar household chore gives it a concrete assignment. Its 7 cm height describes how far the body projects from the cleaning surface. That helps you think about clearance in front of a mirror and the space needed to put the robot away afterward.

Height is not the footprint. It cannot tell you whether the robot will pass beside a faucet or fit a narrow strip of mirror. The brand does not provide the footprint here; ask the retailer for the body dimensions if fixtures crowd your intended cleaning area.

Is that broad bathroom mirror where you most want relief from wiping? Mirror compatibility makes this a relevant candidate. Tile compatibility adds another household assignment, without promising suitability for every tile finish or arrangement.

Essentiel brings automatic ultrasonic dual spray to the mirror routine

Automatic ultrasonic spraying and dual spray are the clearest attractions here. Liquid application becomes part of the robot's routine, a practical feature when cleaning usually means juggling a bottle and a cloth while leaning across the vanity. The toothpaste already has enough company beside the sink.

If handling the spray bottle is the part you want to hand over, this feature makes sense. It brings a useful function to a chore that tends to return just when you thought the bathroom was finished. Automatic application does not establish how evenly liquid reaches a particular surface, or how a dried splash will look afterward. The visible finish depends on the dirt, cleaning solution, and cloth condition.

Would a remote control suit your cleaning routine? That is the specified control method. It lets you manage the robot without reaching over to its body for commands, while remaining nearby to watch the work. Remote operation is convenient; it does not make the chore something to leave running while you head out.

Where will the 7 cm Essentiel window cleaning robot connect to power?

The cord shapes the chore. This robot requires mains power while cleaning, so a usable outlet belongs in your setup plans before you position it on the intended surface. A bathroom mirror may be a supported assignment, but you still need a practical arrangement for the electrical connection, placement, and retrieval. Automatic spraying does not remove that preparation.

The UPS backup battery has a specific purpose: it is intended to keep the robot attached to the surface during a power outage, giving you time to retrieve it. Cleaning still needs outlet power, and the backup battery is a safeguard, never a guarantee against a fall.

Manufacturers' manuals instruct users to secure a safety tether to a fixed anchor and stay nearby, especially for upstairs exterior work. Follow the supplied instructions for this model. Backup protection is a reason to understand the recovery procedure, not a reason to go check what is happening in the kitchen.

This Elkios Essentiel review puts its 7 cm body in a household context

Once the mirror chore is over, the robot needs somewhere to go. Its body height offers a reference for storage clearance, although the full dimensions determine the shelf space it needs. That everyday detail matters when the bathroom cabinet already contains enough bottles to stock a small guest room.

Automatic spraying, remote control, and a UPS backup battery place its equipment among the best on this site for that criterion. That is its persuasive argument. The equipment gives you useful functions; it cannot tell you whether an old mark will disappear.

For a household mainly seeking help with mirrors and tiles, this focused feature mix makes a convincing case. If the real motivation is cleaning a living room picture window or a sunroom, choose a window cleaning robot whose stated compatibility explicitly covers that glass. Start with the surface you actually want cleaned: mirrors and tiles give Essentiel a clear job; picture windows need explicit glass compatibility. Good equipment still needs the right assignment.

Romain Brunel

Analysis by Romain Brunel

Founder of Window-cleaning Robot Picks

We analyse window-cleaning robot manuals, technical specifications and buyer reviews. We explain surface, power supply and safety requirements, highlighting missing information and the limitations of the available data.

Updated on October 4, 2026

Frequently asked questions

Essentiel FAQ: compatible surfaces, mirror clearance and buying advice

Does Essentiel's 7 cm height establish clearance around a faucet?

No. Height describes the body's projection from the cleaning surface, not its footprint across that surface. It helps you assess clearance in front of the mirror, but cannot establish whether the robot fits beside a faucet or within a narrow mirrored area.

Which surfaces does Essentiel support?

Mirrors and tiles are the verified compatible surfaces. That gives it a relevant role in household cleaning. For any particular finish or arrangement, follow the supplied surface instructions rather than treating compatibility as permission to use it everywhere.

Will automatic dual spray remove every mark?

No. Automatic ultrasonic dual spray handles liquid application, but the final appearance depends on dirt, cleaning solution, and cloth condition. Dried splashes and accumulated residue can call for different expectations than routine upkeep. The spray system cannot promise a uniform finish.

What does the UPS backup battery do?

It is intended to keep the robot attached during a power interruption so you can retrieve it. It does not let cleaning continue without mains power or guarantee against a fall. Stay nearby and follow the supplied safety instructions.

What should I confirm before ordering Essentiel?

Warranty coverage and the return policy are not provided. Ask the retailer to explain both before ordering, particularly how a return works if the robot does not suit your intended setup. Clear answers make the purchase decision easier.

At a glance

Elkios Essentiel

9.3/10Overall rating

Pros

  • Automatic liquid application during cleaning
  • Dual spray with ultrasonic spraying
  • Remote control for managing the job
  • Verified compatibility with mirrors and tiles

What to know before buying

  • Mains connection required throughout cleaning
  • Body height does not establish clearance beside fixtures
  • Spraying cannot promise the removal of stubborn marks
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