The Greenworks C20Z is a wire-free robot lawn mower for lawns up to half an acre. It uses Greenworks RTKVision navigation, which combines satellite positioning with camera vision, to mow neat, efficient lines without any boundary wire buried in your yard.

Once it is set up, it mows on its own schedule, avoids obstacles and returns to its charging station when it is done.

The Greenworks C20Z Wire-Free Robotic Lawn Mower is an intelligent lawn maintenance solution designed for homeowners seeking automated, hassle-free mowing. Engineered for properties up to 1/2 acre, this advanced robotic mower combines RTKVision™ navigation technology, smart obstacle detection, and app-based controls to deliver precise and efficient lawn care.

Unlike traditional robotic mowers that require boundary wire installation, the C20Z utilizes wire-free RTKVision™ technology to create accurate mowing paths and maintain navigation precision within approximately 1 inch. This allows the mower to efficiently cover your lawn while minimizing missed areas and unnecessary overlap.

The powerful front-wheel-drive system enables the mower to climb slopes up to 24 degrees (45%), making it suitable for yards with uneven terrain and moderate inclines. Smart obstacle avoidance technology helps detect objects and navigate around landscaping features while maintaining consistent mowing performance.

Users can conveniently manage mowing schedules, monitor mower activity, and adjust settings through the mobile app. The electric cutting height adjustment system allows cutting heights from approximately 0.75 inches to 3.5 inches, providing flexibility for different grass types and seasonal lawn care needs.

Designed for reliable and efficient operation, the Greenworks C20Z delivers a clean, well-maintained lawn with minimal homeowner effort.

Key Features of the Greenworks C20Z

• Fully autonomous wire-free robotic lawn mower
• Suitable for lawns up to 1/2 acre
• RTKVision™ navigation technology
• Navigation accuracy within approximately 1 inch
• Smart obstacle detection and avoidance
• Climbs slopes up to 24 degrees (45%)
• Front-wheel-drive traction system
• App-based remote control and scheduling
• Electric cutting height adjustment
• Adjustable cutting height from 0.75 in. to 3.5 in.
• Quiet and energy-efficient operation

Benefits

• Eliminates routine manual mowing
• No perimeter wire installation required
• Provides precise and consistent lawn coverage
• Handles moderate slopes and uneven terrain
• Allows convenient control through a smartphone app
• Customizes cutting height without manual adjustments
• Saves time while maintaining a professional-looking lawn

What’s Included

• Greenworks C20Z Robotic Lawn Mower
• Charging Station
• Power Adapter
• Installation Accessories
• User Manual

Greenworks C20Z Specifications

• Brand: Greenworks
• Model: C20Z
• Product Type: Robotic Lawn Mower
• Coverage Area: Up to 0.5 Acre
• Navigation Technology: RTKVision™
• Boundary System: Wire-Free
• Navigation Accuracy: Within 1 Inch
• Maximum Slope Capability: 24 Degrees (45%)
• Drive System: Front-Wheel Drive
• Obstacle Avoidance: Smart Detection Technology
• Height Adjustment: Electric
• Cutting Height Range: 0.75–3.5 Inches
• App Control: Yes
• Application: Residential Lawn Care

Tips for Getting the Best Results

Before the first run, clear toys, hoses and fallen branches from the lawn, then map your zones in the app. The Greenworks C20Z performs best when it mows little and often, which keeps grass at an even height and clippings small enough to fertilize the lawn.

Check and clean the blades every few weeks, and keep the charging station on level ground with a clear approach path.

Who Should Buy This Robot Mower?

It is ideal for homeowners with lawns up to 0.5 acre who want to stop mowing by hand, and for yards with moderate slopes up to 45%. The Greenworks C20Z is especially attractive if you want to avoid the time and hassle of installing perimeter wire.

Why Shop at Mowertec?

Mowertec specializes in lawn mowers and lawn care equipment, from walk-behind and riding mowers to robotic and tow-behind models. We list the full kit contents and key specifications on every product page so you know exactly what you are getting before you order. If you are unsure which size, power source or cutting width is right for your property, contact our team and we will help you choose.

Want to compare options? Browse our full range of robotic lawn mowers, or visit the official Greenworks website for more details.

Greenworks C20Z FAQ

Does the Greenworks C20Z need a boundary wire?

No. It uses wire-free RTKVision navigation, and you set boundaries and zones in the mobile app.

How accurate is the navigation?

Greenworks rates RTKVision navigation accuracy at approximately 1 inch.

What slopes can it handle?

It can climb slopes up to 24 degrees (45%) with its front-wheel-drive traction.

Can I change the cutting height from my phone?

Yes. Electric height adjustment lets you set cutting height from about 0.75 to 3.5 inches.