Where it sits in Ambrogio’s range

  1. Twenty ZR EVOSmaller wire-free model that finds the edge by radar
  2. 4.0 BasicThis model
  3. Ambrogio 4.0 EliteBetter-equipped version of the same hinged body
  4. Ambrogio 4.0 Elite 4WDFour-wheel-drive version of the 4.0 Elite

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What we know

What's known about the 4.0 Basic comes from Ambrogio's spec sheet, the specifications, and the American dealer Paradise Robotics, which sells and installs it. Its selling point is a hinged body that tilts to follow lumps and dips. It keeps to the lawn with a boundary wire, comes with a choice of three power units, and is sold and usually installed through dealers. The lawn sizes, slope ratings and run times are all the maker's claims.

A hinged body for bumpy lawns

The 4.0 Basic's main selling point is a joint between the cutting deck and the drive wheels, per the specifications. Paradise Robotics explains that it tilts from side to side so the robot follows the shape of the ground and doesn't scalp the grass on uneven lawns. Flexible rubber rear wheels and optional steel spikes are meant to help on steep or damp ground.

Pick the power unit for your lawn

The three versions are the same robot with different batteries, per Paradise Robotics. Ambrogio's table, in the specifications, gives the Light version 800m² and about 90 minutes of mowing, the Medium 1,200m² and three hours, and the Premium 1,800m² and four hours, though its feature list quotes up to 2,200m² for the Premium. Paradise Robotics suggests choosing more capacity than you need, so it finishes sooner and works its battery less hard.

A wire, a dealer and few extras

It follows a perimeter wire, per the specifications. Paradise Robotics sells the wire and pegs separately and recommends dealer installation, warning that using a different wire voids the warranty. You set the cutting height, from 20 to 65mm, by hand. It has a rain sensor, manages up to four lawn areas and quotes 63dB(A). Remote control, voice assistants and a pet-detecting tag called AMICO are optional extras.

Still to be proven

We haven't found an independent hands-on review, so everything here is Ambrogio's spec sheet the specifications and one dealer's description Paradise Robotics. What we'd most like a test to show is how evenly the hinged body cuts rough ground, whether it really manages slopes of up to 45%, how long each power unit lasts in a real garden, and how reliable it is over several seasons.

Our take

Should you buy the 4.0 Basic?

Best for: Sloping lawns where a dealer can install a boundary wire. Skip it if: You want a mower with independent tests of this exact version.

consider it for a lumpy or sloping lawn if you have a local Ambrogio dealer, and ask them to show you one running. If you'd rather skip the wire, the Segway Navimow i208 AWD grips bumpy slopes without one, and for a tested wired mower STIHL's iMOW 5 EVO leaves a lovely lawn.

The 4.0 Basic is the entry model in Ambrogio's 4.0 family. Its body is hinged between the cutting deck and the drive wheels, so it tilts to follow lumps and dips without scalping the grass. It keeps to the lawn with a boundary wire, and you pick one of three power units for lawns up to 1,800m².

The trade-off is in the extras. Cutting height is set by hand, the app works over Bluetooth from nearby, and remote control over mobile data needs an optional module. There's no camera and no ultrasonic obstacle sensing. Ambrogio rates it for slopes of up to 45% and sells it through dealers, who usually install it and are the route to a longer warranty.

Where to buy

Where to buy the 4.0 Basic in United Kingdom

No verified retailer listed in United Kingdom. Switch market above, or see the alternatives below.

Before you buy

The questions people ask about this one

Does it need a boundary wire?

Yes. It follows a perimeter wire laid round the lawn, per the specifications. Paradise Robotics sells the wire and pegs separately, recommends professional installation by a dealer, and warns that using another wire voids the warranty.

Will it cope with my slope?

Ambrogio allows slopes up to 45%, and gives 35% as the normal working limit and 20% near the wire, per the specifications. The hinged body and rubber wheels are meant for uneven ground, and optional spikes add grip on steep or wet lawns. We haven't found an independent check of any of this yet.

Can it handle two lawns or a narrow passage?

It can manage up to four lawn areas, including the main one, and eight virtual areas, per the specifications. The areas still need linking by the boundary wire, so ask a dealer how best to lay it through narrow passages.

What happens when it rains?

It has a rain sensor and is rated IPx5 against water, per the specifications. Ambrogio also sells a cover to shade the robot from sun and rain while it charges. How it behaves in wet weather hasn't been tested independently.

Is there a subscription for 4G or anti-theft?

Out of the box it uses Bluetooth only, per the specifications. Remote control, notifications and geofencing need the optional ZCS Connect module, which Paradise Robotics notes is an extra purchase on the Basic. Neither says whether that carries an ongoing fee, so ask the dealer.

How noisy is it for the neighbours?

Ambrogio quotes 63dB(A), per the specifications, a little louder than many newer robot mowers, which often claim under 60dB. We haven't found an independent measurement yet, so if noise matters, listen to one running at a dealer.

Alternatives

Other robot lawn mowers to compare.

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STIHL iMOW 5 EVO
STIHL

iMOW 5 EVO

Why consider it: An app-connected boundary-wire mower that testers found leaves a lovely lawn and runs quietly.

The compromise: The edges still need a strimmer, and you'll spend an afternoon laying wire.

Independently reviewedView profile →
GARDENA smart SILENO life 1000
GARDENA

smart SILENO life 1000

Why consider it: A quiet, app-connected boundary-wire mower for mid-sized lawns with trees, paths and side areas.

The compromise: It needs a fairly even lawn and dislikes long spells of wet grass.

Highly rated by reviewersView profile →
Segway Navimow i2 AWD
Segway Navimow

i2 AWD

Why consider it: All-wheel drive for bumpy, sloping lawns of 500 to 1,000m², with no wire and usually no aerial to fit.

The compromise: You'll still trim the edges, and tight strips beside walls can confuse it.

Independently reviewedView profile →

Specs

Full specifications

BoundaryPerimeter wireSource: Ambrogio
Power unitsLight: 800m², 3.45Ah, about 1.5 hours; Medium: 1,200m², 6.9Ah, about 3 hours; Premium: 1,800m², 10.35Ah, about 4 hoursSource: Ambrogio
Cutting width25cmSource: Ambrogio
Cutting height20–65mm, manualSource: Ambrogio
Slope45% allowable; 35% maximum working; 20% at the wireSource: Ambrogio
AreasUp to 4 lawn areas; 8 virtual areasSource: Ambrogio
ConnectivityBluetooth app; GPS/GSM ZCS Connect on requestSource: Ambrogio
Noise63dB(A)Source: Ambrogio
Weather protectionIPx5, rain sensorSource: Ambrogio
Dimensions464 × 635 × 300mmSource: Ambrogio
Weight15.0–15.6kg, depending on power unitSource: Ambrogio

Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.

Owner reviews

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