Greenworks 80V 21" Self-Propelled Cordless Lawn vs SENIX 22-Inch Gas Walk Behind Brush Cutter and
Updated July 2026 — Greenworks 80V 21" Self-Propelled Cordless Lawn wins on battery and maneuverability, SENIX 22-Inch Gas Walk Behind Brush Cutter and wins on power and noise level.
The Greenworks mower excels in ease of use and advanced features, while the SENIX offers raw power for tougher tasks. Choose based on your specific lawn care needs.
Why Greenworks 80V 21" Self-Propelled Cordless Lawn is better
Quieter Operation
3x quieter than gas models
Self-Propelled
Easier to maneuver on uneven terrain
Versatility
4-in-1 cutting system for various needs
Why SENIX 22-Inch Gas Walk Behind Brush Cutter and is better
Lower Price
Cheaper by 17%
Powerful Engine
160cc engine for heavy-duty tasks
Cutting Width
22-inch cutting swath for efficiency
Overall score
Specifications
| Spec | Greenworks 80V 21" Self-Propelled Cordless Lawn | SENIX 22-Inch Gas Walk Behind Brush Cutter and |
|---|---|---|
| Power Source | Battery | Gas |
| Engine Type | Brushless | 4-Cycle |
| Cutting System | 4-in-1 | Adjustable |
| Warranty | 3 Years | 3 Years |
| Sales Rank | 1880 | 23716 |
Dimension comparison
Overview of the Products
The Greenworks 80V 21" Self-Propelled Cordless Lawn Mower is a high-performance electric option, while the SENIX 22-Inch Gas Walk Behind Brush Cutter and String Trimmer is a robust gas-powered alternative. Both products serve the purpose of lawn care but target slightly different needs. The Greenworks mower, priced at $479.99, is designed for efficiency and ease of use in residential settings, while the SENIX brush cutter, available for $398.99, is tailored for tackling larger properties and tougher terrain.
Power Source and Performance
The Greenworks mower operates on an 80V battery system, offering the convenience of cordless operation without sacrificing power. It features a brushless motor that delivers 30% more torque than standard models, making it capable of cutting through dense grass effectively. In contrast, the SENIX brush cutter is powered by a 160cc 4-cycle engine, known for its strong and consistent performance. While the Greenworks mower excels in quieter operation and emissions-free use, the SENIX's gas engine provides the brute force needed for heavy-duty tasks, making it more suited for larger, rougher lawns.
Cutting Width and Versatility
When it comes to cutting width, the SENIX brush cutter boasts a 22-inch cutting swath, slightly wider than the Greenworks mower’s 21-inch deck. This extra inch can make a difference in efficiency, especially for larger properties. The Greenworks mower offers a 4-in-1 cutting system that allows users to mulch, bag, side discharge, or pick up leaves, providing versatility in lawn care. The SENIX, while primarily a brush cutter, also offers adjustable cutting height settings from 1.57 to 3 inches, allowing it to handle various types of vegetation effectively.
User Experience and Maneuverability
User experience varies significantly between the two products. The Greenworks mower features self-propulsion with rear-wheel drive, enhancing maneuverability on uneven terrain and making it easier to operate without exerting much effort. LED headlights also allow for early morning and late evening mowing, adding convenience. On the other hand, the SENIX brush cutter is equipped with 14-inch rubber wheels that facilitate movement over rough ground, making it easier to navigate challenging landscapes. However, it lacks the self-propelling feature, which might require more effort from the operator.
Maintenance and Convenience
The Greenworks mower is designed for minimal maintenance, benefiting from its electric nature and brushless motor, which typically requires less upkeep compared to gas engines. Additionally, it offers the advantage of being 3x quieter than gas models, making it ideal for residential areas. Conversely, the SENIX brush cutter's gas engine necessitates regular maintenance such as oil changes and fuel management, which can be a drawback for some users. However, it does come with a 3-year limited warranty, providing peace of mind regarding its reliability.
Budget Considerations
In terms of pricing, the SENIX brush cutter is about 17% cheaper than the Greenworks mower, retailing at $398.99 compared to Greenworks' $479.99. This price difference might appeal to budget-conscious homeowners or those who need a tool for less frequent use. However, the higher price of the Greenworks mower can be justified by its advanced features, including a brushless motor and a 4-in-1 cutting system, which might provide better long-term value for regular users.
Sales Rank and Popularity
The Greenworks mower currently holds a sales rank of 1880, indicating a strong presence in the market, while the SENIX brush cutter has a lower sales rank of 23716. This suggests that the Greenworks mower is more popular among consumers, potentially due to its innovative features and reliable performance. Buyers often consider popularity and user reviews when making a purchasing decision, which can heavily influence their choice between these two models.
Which should you buy?
The decision on whether to purchase the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower or the SENIX 22-Inch Gas Walk Behind Brush Cutter and String Trimmer hinges on individual needs. If you prioritize ease of use, quieter operation, and the benefits of a battery-powered device, the Greenworks mower is the superior choice despite its higher price. However, if you have a large property that requires tackling dense brush and you prefer a gas-powered machine for its raw power, the SENIX brush cutter offers excellent value at a lower price. Ultimately, your choice should reflect your specific lawn care needs and personal preferences.

