Greenworks 80V 21” Brushless Cordless Electric vs SENIX 22-Inch Gas Walk Behind Brush Cutter and
Updated July 2026 — Greenworks 80V 21” Brushless Cordless Electric wins on height and battery, SENIX 22-Inch Gas Walk Behind Brush Cutter and wins on power and weight.
The Greenworks 80V kit offers versatility and convenience for regular lawn maintenance, while the SENIX brush cutter excels in power for tough terrains. Choose based on your specific needs.
Why Greenworks 80V 21” Brushless Cordless Electric is better
Versatility
Includes multiple tools for various tasks
Warranty
4-year warranty compared to 3 years
User Features
More user-friendly design with adjustable height and LED lights
Why SENIX 22-Inch Gas Walk Behind Brush Cutter and is better
Power
160cc engine for heavy-duty tasks
Cutting Width
22-inch cutting swath for faster coverage
Price
Lower price point at $398.99
Overall score
Specifications
| Spec | Greenworks 80V 21” Brushless Cordless Electric | SENIX 22-Inch Gas Walk Behind Brush Cutter and |
|---|---|---|
| Type | Electric | Gas |
| Motor | Brushless | 4-Cycle |
| Cutting System | 3-in-1 | Brush Cutter |
| Trimmer Line | N/A | .155-inch |
| Maneuverability | High | Medium |
Dimension comparison
Overview of the Products
The Greenworks 80V 21” Brushless is a comprehensive combo kit that includes a cordless electric lawn mower, a leaf blower, and a string trimmer, while the SENIX 22-Inch Gas Walk Behind Brush Cutter focuses on powerful gas performance for tackling dense weeds and brush. At $499.99, the Greenworks kit offers a versatile solution with multiple tools, whereas the SENIX brush cutter is priced at $398.99, making it about 17% cheaper than the Greenworks option. Each product caters to different lawn maintenance needs and preferences.
Power and Performance
The Greenworks 80V 21” Brushless features a robust 80V brushless motor, ensuring efficient performance for various yard maintenance tasks. In contrast, the SENIX 22-Inch Brush Cutter is equipped with a 160cc 4-cycle professional-grade engine, which provides strong and consistent power. This difference in power sources indicates that while the Greenworks kit is better suited for quieter, residential use, the SENIX is designed for tackling larger properties and overgrown areas. The powerful engine of the SENIX allows it to cut through dense weeds with ease, making it an ideal choice for those needing to manage tough terrains.
Cutting and Trimming Capabilities
The Greenworks 80V 21” Brushless mower offers a 3-in-1 system that allows for mulching, rear bagging, and side discharge, making it versatile for various lawn care preferences. The 21-inch steel deck provides a good cutting width suitable for standard yards. On the other hand, the SENIX brush cutter has a larger 22-inch cutting swath, which is beneficial for quickly covering more ground, especially in areas with heavy brush. The SENIX also uses a .155-inch diameter heavy-duty trimmer line, enhancing its capability to manage tougher jobs. Therefore, while the Greenworks provides flexibility for standard lawn maintenance, the SENIX is better equipped for heavy-duty cutting tasks.
Battery vs. Gas Power
The Greenworks kit operates on two 2Ah USB batteries, promoting a cordless and environmentally friendly mowing experience. Additionally, it includes a rapid 4A charger for quick battery replenishment. Conversely, the SENIX brush cutter relies on gas, which may appeal to users preferring traditional power sources for high-performance tasks. While the Greenworks offers the convenience of battery operation with less noise and emissions, the SENIX's gas engine may deliver more consistent power for extensive lawn care. This choice of power source directly affects the user experience and application in different environments.
User Experience and Maneuverability
The Greenworks 80V 21” Brushless mower is designed with user comfort in mind, incorporating a hand-push design, adjustable height settings with seven positions, and LED lights for low-light conditions. These features enhance the overall mowing experience and ease of use. In comparison, the SENIX brush cutter boasts 14-inch rubber high wheels that facilitate maneuverability over rough terrain, and an ergonomic handle for comfortable operation. While both products prioritize user experience, the Greenworks offers more convenience features for general lawn care, whereas the SENIX focuses on handling challenging outdoor conditions.
Storage and Portability
With a hand-push design, the Greenworks mower is easy to store vertically, which is a practical feature for those with limited storage space. Moreover, the inclusion of multiple tools in the combo kit makes it a comprehensive solution for various lawn care needs. The SENIX brush cutter also features a fold-down handle design for compact storage, making it convenient for users with storage constraints. Both products address the need for efficient storage, but the Greenworks combo kit may provide a more versatile solution for users looking to cover multiple tasks in one purchase.
Warranty and Reliability
The Greenworks 80V 21” Brushless comes with a generous 4-year warranty, offering peace of mind regarding its long-term reliability and performance. In comparison, the SENIX brush cutter is backed by a 3-year limited warranty, which is still commendable but slightly less than its Greenworks counterpart. This difference in warranty duration may influence buyers' perceptions of the reliability and durability of the products, with the Greenworks kit suggesting a higher confidence level in its longevity.
Which should you buy?
Deciding between the Greenworks 80V 21” Brushless and the SENIX 22-Inch Gas Walk Behind Brush Cutter ultimately depends on your specific lawn care needs. If you require a versatile, all-in-one electric solution for regular lawn maintenance, the Greenworks kit at $499.99 provides excellent value with its multi-tool capability and user-friendly features. However, if your focus is on managing larger, tougher areas with a powerful gas engine, the SENIX brush cutter at $398.99 is more suitable for such tasks, especially given its professional-grade performance. Consider your lawn size, terrain type, and personal preference for power sources when making your choice.

