Ambrogio Twenty ZR
Vision Only
~$1,799

Ambrogio

Ambrogio Twenty ZR

Ambrogio is the Italian dealer brand (Zucchetti) that landscapers respect, and the Twenty ZR is its oddball: a small mower that needs no perimeter wire, no RTK antenna and no camera map. Instead it uses radar plus grass-humidity sensors to recognize where the lawn stops, turning back when it meets paving, mulch beds or gravel, and mows the interior in a random pattern like a classic Robomow. That makes it the fastest install here, minutes rather than a weekend, but it only works if your lawn has a physical border everywhere; where grass simply continues into a neighbor's yard it will keep going, and Paradise Robotics is upfront that objects need to be about 6 inches tall for the radar to see them. It is a quarter-acre machine at heart: a 7-inch blade, 1 to 2.8 inch cut range, 45 percent slopes (20 percent near edges), 59 dB, a 5 Ah battery good for about four hours, and just 16.5 pounds. At about $1,799 through Paradise Robotics or GL Robotics, with an optional $699 4G Connect module for remote control and GPS theft tracking, it costs as much as a Segway Navimow i110 that maps a full acre with cameras and RTK, so buy it for the zero-install idea and the dealer relationship, not for value. A tidy, fully bordered quarter acre with an owner who refuses to run wire is the right home for it.

Approx. price
~$1,799
Rated for
up to 10,764 sq ft
Max slope
45% (24°)
Best For
Small, fully bordered lawns up to a quarter acre where the owner wants zero installation and has an Ambrogio dealer nearby.
Buy from Paradise Robotics

Price and availability on Paradise Robotics’s site may differ.

Specifications

Vision Only
10,764 sq ft (10,764 sq ft)
45% (24°)
1"–2.8"
240 min
59 dB
Weight
16.5 lb
Radar detects obstacles about 6 in or taller before contact, plus bumper and lift sensors; low items and open grass borders (a neighbor's lawn) go unrecognized.
Edge Cutting
No
Rain Sensor
Yes
Multi-Zone
Yes
No (Wi-Fi / Bluetooth)
PIN code; GPS tracking and geofence with the optional Connect module
2-year
Model
Twenty ZR
Released
2022

How it navigates

ZR radar and grass-humidity sensors tell lawn from paving, beds and gravel, so no perimeter wire, RTK antenna or camera map; random-pattern mowing, optional short guide wire for docking; borders must change material.

Highlights

Radar plus grass sensors: no wire, antenna or mapping7 in blade, 1-2.8 in cut, 45 percent slopes, 59 dB, 16.5 lbAbout 4 hours per charge on a 25.9 V 5 Ah battery; 0.25 acre rating

Pros

  • Truly install-free: no wire, RTK antenna or perimeter mapping before the first mow
  • Lightest mower here at 16.5 lb, quiet at 59 dB, with about 4 hours of runtime per charge
  • Italian build with a 2-year warranty and US dealer support through Paradise Robotics
  • Bluetooth remote-drive mode and optional Connect module add Alexa, GPS tracking and geofence

Cons

  • Needs a physical border everywhere; it will wander onto a neighbor's lawn or open grass
  • Radar only sees obstacles about 6 in or taller; small items get run over
  • Random-pattern mowing with a 7 in blade is slow, and it leaves edges for the trimmer
  • Not recommended for stiff St. Augustine or Zoysia turf
  • Remote access costs an extra $699 module; no US retailer reviews to lean on

Pros and cons above are drawn from the manufacturer’s spec sheet and published reviews; this model is too new for a body of owner reports.

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