Greenworks 60V 21" Self-Propelled Cordless Lawn vs SENIX 144 cc Gas Lawn Mower,
Updated July 2026 — Greenworks 60V 21" Self-Propelled Cordless Lawn wins on battery life and weight, SENIX 144 cc Gas Lawn Mower, wins on noise level.
The Greenworks mower offers superior technology and eco-friendliness, while the SENIX provides solid performance at a lower price.
Why Greenworks 60V 21" Self-Propelled Cordless Lawn is better
Eco-Friendliness
Zero emissions and quieter operation
Runtime
Over 60 minutes of continuous mowing
Versatility
4-in-1 functionality with multiple cutting options
Why SENIX 144 cc Gas Lawn Mower, is better
Price
53% cheaper than Greenworks
Power
Explosive power for tough terrains
Simplicity
Easier maintenance with gas engine
Overall score
Specifications
| Spec | Greenworks 60V 21" Self-Propelled Cordless Lawn | SENIX 144 cc Gas Lawn Mower, |
|---|---|---|
| Motor Type | Brushless | 4-Cycle |
| Power Source | Battery | Gas |
| Self-Propelled | Yes | No |
| Cutting Options | 4-in-1 | 2-in-1 |
| Runtime | 60+ mins | N/A |
Dimension comparison
Overview
When it comes to lawn maintenance, the choice between a cordless electric mower and a gas-powered mower can significantly affect your mowing experience. The Greenworks 60V 21" Self-Propelled Cordless Lawn Mower is priced at $538.00, while the SENIX 144 cc Gas Lawn Mower comes in at a more budget-friendly $254.99. This substantial price difference, approximately 53% cheaper for the SENIX mower, reflects their differing technologies and features, which cater to distinct user preferences.
Power and Performance
The Greenworks mower boasts a 60V brushless motor that delivers gas-like power, capable of handling up to 3/4 acre on a single charge. In contrast, the SENIX mower is equipped with a 144 cc 4-cycle engine, designed for explosive power on tough terrains. While both mowers are efficient, the Greenworks mower's performance is optimized for quieter operation—operating three times quieter than gas models. This aspect makes it particularly suitable for residential areas where noise can be a concern.
Design and Build Quality
The design of the Greenworks mower emphasizes functionality and user comfort. It features a self-propelled design with adjustable rear-wheel drive, enabling users to navigate slopes with ease. Additionally, its IPX4-rated waterproof construction ensures durability against rain, while rust-proof aluminum handles promise longevity. The SENIX mower, with its 8-inch front and 11-inch rear high wheels, is designed to improve passability across rugged terrain but may not match the sleek, maintenance-free appeal of the Greenworks model.
Cutting Versatility
The Greenworks mower offers 4-in-1 versatility, allowing users to mulch, bag, side discharge, and even perform turbo leaf pickups. This flexibility is complemented by seven height settings for cutting, accommodating various grass types and conditions. The SENIX mower, while also versatile, provides a simpler 2-in-1 function with mulching and side discharge. It features a 21-inch cutting width and six height adjustment levels, but lacks the extensive versatility of the Greenworks mower.
Runtime and Maintenance
One key advantage of the Greenworks mower is its dual 4.0Ah batteries, providing over 60 minutes of continuous mowing. The smart auto switchover feature ensures users can mow larger yards without interruption. The SENIX mower, being gas-powered, does not rely on battery life but requires regular gas refills and maintenance typical of gas engines. This difference can significantly impact long-term operating costs and convenience, making the Greenworks mower more appealing for those seeking a hassle-free mowing experience.
Eco-Friendliness
The Greenworks mower prioritizes eco-friendliness, operating with zero emissions and significantly less noise than traditional gas mowers. This makes it an excellent choice for environmentally-conscious consumers. In contrast, the SENIX mower, while powerful, does contribute to emissions associated with gas engines. For users who value sustainability in their yard care, the Greenworks mower stands out as the more responsible option.
Price and Value
With a price tag of $538.00, the Greenworks mower is on the higher end of the market, approximately 53% more expensive than the SENIX, which retails for $254.99. Despite the higher initial investment, the Greenworks mower offers features such as a longer runtime, quieter operation, and added versatility, which may justify the cost for some buyers. Conversely, the SENIX mower provides solid performance at a lower price, making it a suitable choice for budget-conscious consumers or those with smaller yards.
Which should you buy?
In deciding between the Greenworks 60V 21" Self-Propelled Cordless Lawn Mower and the SENIX 144 cc Gas Lawn Mower, your choice ultimately hinges on your specific needs and budget. If you prioritize eco-friendliness, advanced technology, and versatility, the Greenworks mower is worth the investment. However, if you're looking for a reliable, cost-effective mower for simpler tasks and are comfortable with gas maintenance, the SENIX mower offers solid performance at a significantly lower price.

