The best Gardena lawn mower robots, compared.
Top pick: Gardena SILENO city 250 Best value: Gardena SILENO minimo 250 – Lowest shelf price in the set, about £374.99, with 4.4 from 22 reviews and a stated UK plug. Updated 22 October 2026.
A robot lawn mower is a battery mower that cuts little and often inside a boundary wire, then returns to a charging station. You buy one in the UK when you want the lawn kept short without pushing a mower each week, and when you can lay a loop around the grass. A suitable machine is one whose stated area and slope match the garden, whose box lists a charging station and a wire length, and whose plug line is a BS 1363 UK plug. Prefer a cutting height in millimetres when the title and the specification cells agree. A centimetre cell is not the same figure as a millimetre range. Bluetooth from a few metres beside the mower is not a gateway you can use from the house. With a guide wire, a corridor can start at about 60 cm from wire to wire. Without a guide wire, allow at least 1.5 m. The [robot lawn mower buying guide](/hub/lawn-and-garden-equipment/gardena-lawn-mower-robot/sub/gardena-lawn-mower-robot-buying-guide) sets out area, slope, wire and plug checks.
A robot lawn mower is a battery mower that cuts little and often inside a boundary wire, then returns to a charging station.
26 products checked · 58 hrs invested · +21,400 readers
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Personal buying guide
Question 1 of 2
How large is the lawn you want covered?
The Gardena SILENO city 250 at about £721.73 states 250 m², slopes up to 25%, a 16 cm cut and a cutting height of 20–50 mm, plus theft protection and a charging station with a UK plug. The amazon.co.uk line is 5.0 from only 2 reviews, which is why the shelf score reads 100 even though two reviews cannot show how the mower behaves across a season. The saved listing has one paragraph, about a blue light after the loop was extended, so the written evidence is a single incident. The height cells say 20 cm and 50 cm, which sit against the millimetre range in the title, and the connector counts disagree between lines. The warranty cell says no manufacturer warranty. The style cell says a Bluetooth app while the title mentions an LCD, so both lines need reading before you assume a gateway. At more than £700 for the same 250 m² band as the minimo, this row suits you only if you specifically want the 16 cm width and the 25% title, and you accept a two-review sample.
Pros
Cons
Best for: You want a city title that prints 16 cm, 25% and a UK plug for a 250 m² lawn, and you will not treat two reviews as a season of evidence.
Less suitable: You want a larger review sample, a height row that matches the title, or the lowest price at this stated area.
Specifications
Common questions
What slope and height does the city 250 title state?
The title says inclines up to 25% and a cutting height of 20–50 mm. The height cells instead say 20 cm and 50 cm.
Is a UK charging station in the box?
The scope line says a charging station with a UK plug, 150 m of boundary wire and an English manual.
How many reviews support the 5.0 score?
The listing line is 5.0 from 2 reviews. The saved listing has one paragraph, about a blue light after the loop was extended.
The Gardena SILENO city 500 at about £442.77 states up to 500 m², slopes up to 25%, a 16 cm cut, an LCD, theft protection and a charging station with a UK plug. Across 8 amazon.co.uk reviews the line is 4.8, and the shelf score is 96, which is why this row is the top pick in the set rather than the 5.0 that rests on two reviews. Those eight reviews mention quiet running, a schedule with self-charging and a collision sensor, and they also say the wire took about five hours to peg. The height cells say a maximum of 50 cm and a minimum of 2 cm, which sit against the title's 20–50 mm, and the dimension cell of 79 × 23 × 39 cm is implausible as printed beside a listed weight of 7 kg. The box line includes 150 m of wire, 200 hooks, four couplers and five connectors, plus an English manual. Eight reviews are a thin sample, so the top pick is a shelf choice for a stated 500 m² lawn with a UK plug, and it is not a lab result.
Pros
Cons
Best for: You want a stated 500 m² city with a UK plug and the strongest star line that is not a two-review score.
Less suitable: You need a height row that matches the title, a 35% slope on the listing, or a review sample in the dozens.
Specifications
Common questions
What does the city 500 title claim?
Up to 500 m², slopes up to 25%, cutting height 20–50 mm, an LCD, theft protection, a UK plug and a 16 cm cut.
Why are the height cells not the same as the title?
The cells say a maximum of 50 cm and a minimum of 2 cm. The title says 20–50 mm. The dimension cell is 79 x 23 x 39 cm.
What do the eight reviews actually praise?
Quiet running, a schedule with self-charging, and a collision sensor. They also say the wire took about five hours to peg.
The Gardena smart SILENO life 1000 set is the only listing over £1,000, at about £1,067.21, and it is the row that includes a smart gateway with LONA. The stated area is 1,000 m² with slopes up to 35%, a 22 cm cut, 200 m of boundary wire, 300 hooks and a charging station the listing says has a UK plug. The star line is 4.6 from 4 reviews, the shelf score is 92, and the saved listing has no review paragraphs, so those four buyers are a number without a written account. LONA is described as mapping, zones, area protect and location tracking, and the same included line still lists 200 m of wire, so the set keeps the boundary. The height cells print 22 cm maximum and 20 mm minimum, which is not a single 20–50 mm range. Listed weight is 16 kg, the model is 19702-68, and the warranty cell says two years. Assembly is marked no. Read this set when the lawn is near the 1,000 m² claim and you want the gateway, with the limit that four reviews and no text are all the amazon.co.uk file contains.
Pros
Cons
Best for: You are near a 1,000 m² claim and you want the gateway, the wider cut and 200 m of wire, knowing the review file has no written paragraphs.
Less suitable: Your lawn is a few hundred square metres, you will not lay a wire, or you want written UK reviews before you spend over £1,000.
Specifications
Common questions
What is in the life 1000 set?
The included line lists the mower, a smart gateway, a UK-plug charging station, 200 m of boundary wire, couplers, terminals and 300 hooks.
Does LONA on this listing remove the boundary wire?
No. The same included line still lists 200 m of boundary wire. LONA is described as mapping, zones, area protect and location tracking.
How many written reviews are in the saved listing?
None. The star line is 4.6 from 4 reviews, and the saved listing has no review paragraphs.
The Gardena SILENO minimo 250 is a wired robot titled for 250 m² at about £374.99, the lowest price in this amazon.co.uk set, with a listed weight of 12.4 kg and a charging station the listing says has a UK plug. Across 22 reviews the line is 4.4, and the shelf score is 88, so this is the best value when you want that small stated area, 150 m of boundary wire and 150 hooks in the box. The bullets put the Bluetooth app at up to 10 m and require online registration, which is control from beside the mower rather than a smart gateway. This listing prints 57 dB(A). It does not print a slope or a cutting width, so those two figures cannot be quoted from the row. The height cells say a maximum of 1.97 inches and a minimum of 2.5 cm, which do not describe one range. For a flat lawn you already keep inside about 250 m², and where you will peg the wire yourself, the price and the 22-review line are the usable part of the page.
Pros
Cons
Best for: You want the lowest price in this set for a stated 250 m² lawn, a UK plug and 150 m of wire, and you will live without a printed slope.
Less suitable: You need a printed cutting width, a slope figure on the amazon row, or control from a gateway rather than a phone within about 10 m.
Specifications
Common questions
Does the minimo 250 listing include a UK plug?
Yes. The title, the style cell and the included line all say a charging station with a UK plug, plus 150 m of boundary wire.
What cutting height does the listing print?
The title does not state a height. The cells say a maximum of 1.97 inches and a minimum of 2.5 cm. No cutting width is printed.
How far does the Bluetooth app claim to work?
The bullets say the Gardena Bluetooth app works from up to 10 m, and that online registration is required.
The Gardena SILENO flex, model 15301-41, is about £624.52 with the largest review count in the set, 3.6 from 51, and a shelf score of 72. The title states a cutting height of 1–4 inches, while the cells say 2.5–4 inches and a cutting width of 12 inches, so the height range is not the same in both places. Area, slope, wire length, UK plug, control and the charging station are absent from the bullets. The listed weight is 9.98 kg and the dimensions are 45.7 × 38.1 × 30.5 cm. Much of the review text uses dollars and US yards, which makes 51 reviews weak evidence for a UK lawn. Assembly is marked yes, and the box contents are not listed. Without a stated area or a UK plug, this row cannot tell you whether it fits a given garden or a BS 1363 socket.
Pros
Cons
Best for: You already know the area and the plug from another source, and you want the 12 inch width cell as a starting point.
Less suitable: You need a square-metre title, a UK plug line, or reviews that describe UK gardens.
Specifications
Common questions
What area and slope does the flex listing state?
Neither. The title states a 1–4 inch cutting height. Area, slope, wire length and UK plug are not stated.
What cutting width is printed?
The cell says 12 inches, about 30.5 cm. The height cells say 2.5–4 inches, which is narrower than the title's 1–4 inches.
Are the 51 reviews UK reviews?
The star line is 3.6 from 51. Much of the review text uses dollars and US yards, so it is weak evidence for a UK lawn.
Article 15001-41 is a SILENO city at about £655.04 whose title area is up to 2,700 sq ft, about 251 m², rather than 2,700 square metres. The star line is 3.1 from 48 reviews, the second-largest count in the set, and the shelf score is 62. Bullets state 57 dB(A), Bluetooth and slopes up to 35%, with a cutting width of 6.3 inches. The listing does not state a UK plug, a wire length or a charging station, and assembly is marked no. The height cell gives a maximum of 12 cm and leaves the minimum blank. Much of the review text uses dollars and repeats mowers that show charging and then stop once they leave the dock, so it is weak evidence for a UK lawn even though the count is 48. The listed weight is 8.16 kg. If your lawn is near 250 m², read this as a small-lawn title with a poor star line and missing plug and wire figures.
Pros
Cons
Best for: You already know 2,700 sq ft is about 251 m², and you only need the 35% bullet and the 6.3 inch width after you have checked the plug yourself.
Less suitable: You want a stated UK plug, a printed wire length, or a star line above 4.
Specifications
Common questions
Is 2,700 sq ft the same as 2,700 m²?
No. The title says up to 2,700 sq ft, which is about 251 m². The listing does not state a square-metre area.
Does this listing say UK plug or a wire length?
Neither. It states a boundary wire, Bluetooth, 57 dB(A) and slopes up to 35%. The station and the wire length are not stated.
What do the reviews repeat?
The star line is 3.1 from 48. The text, much of it in dollars, repeats mowers that show charging and then die off the dock.
The Gardena SILENO city 300 at about £680.99 is the lowest star score in the set, 2.4 from 19 reviews, and the shelf score is 48. The title and the height cells both say 20–50 mm, which is the row here where the height does not fight itself, and the title also says 300 m² and slopes up to 35%. Bluetooth is stated to about 10 m, the title mentions an LCD, and theft protection is in the title. The included line names a charging station and 150 m of wire, and it does not say UK plug. UK review text describes units that show charging and are dead once they leave the dock. The listed weight is 14.5 kg and the model number is 15005-28. A height row that agrees does not offset a 2.4 line about batteries that will not hold a charge, so this is a pause for a 300 m² lawn.
Pros
Cons
Best for: You need a 300 m² title whose height row agrees, and you will check the charge behaviour before you rely on it.
Less suitable: You want a star line above 4, a stated UK plug, or reviews that are about the cut rather than a dead battery.
Specifications
Common questions
Do the height cells match the city 300 title?
Yes. The title and the cells both say 20–50 mm. The title also says 300 m² and slopes up to 35%.
Is a UK plug stated?
No. The included line names a charging station and 150 m of wire. It does not say UK plug.
What do UK reviews say about charging?
The star line is 2.4 from 19. UK text describes units that show charging and are dead once they leave the dock.
The scores are the amazon.co.uk star line for these seven listings, multiplied by 20, as stored on 22 October 2026. A 5.0 from two reviews does not take the top-pick note. The best-value note is the lowest shelf price with a double-digit review count and a stated UK plug. Area, slope, wire and plug are read from the listing. They are not separate weights. This is not a lawn trial and not a lab score.
Amazon.co.uk star line
100%The published score is the amazon.co.uk star line multiplied by 20. Review count does not raise that number. A two-review 5.0 stays a high score and still carries no award, because the written sample is too thin. Area, slope, wire length and a UK plug are checked on the row and used for the notes. They are not extra percentages.
Choose a robot lawn mower by the figures the listing actually prints: stated area, slope, wire length, UK plug, cutting height and whether control is Bluetooth beside the mower or a gateway. A planning band of about ±20% is not a measured cut. A centimetre height cell is not a millimetre range. A gateway does not remove the boundary wire.
A robot lawn mower keeps a lawn short by cutting often inside a boundary wire and docking at a charging station. In the UK you match a stated area and a stated slope to the garden you have. A title in square metres is the planning figure. One listing in this class can print 2,700 sq ft, which is about 251 m², not 2,700 m². Gardena's planning page adds about ±20% on the family article numbers, so a title area is a band, not a promise that every corner is cut.
These mowers are for a lawn you already keep short, cut little and often. Long grass is a reason to cut it down another way first. A poor first run is not evidence that the stated area is wrong.
Peg the loop and run the mower with the wire visible. Bury it, or leave it pegged, only after the loop holds. Do not coil spare wire. A city 500 review in this file put the pegging at about five hours.
Prefer a 20–50 mm title when the cells agree. A 50 cm cell, a 20 cm cell, or a 22 cm maximum next to 20 mm is a conflict. Do not average it into the millimetre range, and do not copy 57 dB(A) onto a listing that does not print it.
Stated area is the first match to the garden. A title in square metres is the figure to plan from. One city listing prints 2,700 sq ft, which is about 251 m², not 2,700 m². Gardena's planning page adds about ±20% on the family article numbers, so treat a title area as a planning band, not a guarantee that every corner is cut. Slope is separate. The minimo family is capped at 25% inside the lawn.
The box should name the charging station, a printed wire length, and the words UK plug if you need a BS 1363 socket. In this set, 150 m is the common wire length, and the life set prints 200 m. Where the length is missing, do not invent one. Bluetooth, where a listing states it, is about 10 m beside the mower, and it is not control from the office. Whole-home control is the life gateway.
Three typical situations, each with a recommendation from this comparison.
You will peg the wire and you want the lowest price for a stated 250 m² lawn. The SILENO minimo 250 is about £374.99, with 4.4 from 22 reviews, a stated UK plug and 150 m of wire. It does not print a slope or a cutting width.
You are near a 1,000 m² claim and you want zones and a remote app. The smart SILENO life 1000 set is about £1,067.21, with a gateway, 200 m of wire and a UK plug. The file is 4.6 from four reviews and has no written paragraphs. The wire stays in the box.
You want a stated 500 m² city whose star line is not a two-review score. The SILENO city 500 is about £442.77, with 4.8 from eight reviews, a UK plug, a 16 cm cut and 150 m of wire. The height cells do not match the 20–50 mm title.
The top pick in this set is the Gardena SILENO city 500, at about £442.77, with 4.8 from eight amazon.co.uk reviews, a stated 500 m², a UK plug and 150 m of wire. The score is 96 because that star line is 4.8 multiplied by 20. The city 250 scores 100 on a 5.0 from two reviews, which is too thin for the note. The best value is the SILENO minimo 250, the lowest price at about £374.99, with 4.4 from 22 reviews, a stated UK plug and 150 m of wire. Neither note is a lawn trial. The life 1000 set is the gateway listing near 1,000 m². The city 300 has the lowest star line, 2.4 from 19, with UK reviews about a charge that will not hold.
Gardena SILENO minimo 250
Lowest shelf price in the set, about £374.99, with 4.4 from 22 reviews and a stated UK plug.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources listed below, plus the amazon.co.uk listings in this comparison, gathered on 22 October 2026.
This page contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. The comparison uses amazon.co.uk listings and public UK sources. We did not mow these lawns.
