LawnMaster vs Sun Joe: Lawn Mowers Compared by Specs
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When comparing a LawnMaster vs sun joe lawn mower, you are looking at two very different tools for outdoor care. Both units are designed for lawn maintenance and feature reel-style mechanisms. The main difference lies in their function and power source. The LawnMaster is a manual push mower for cutting grass, while the Sun Joe is a corded electric dethatcher for removing thatch. You must choose based on whether you need to trim your lawn or aerate it.
Key differences
| Aspect | LawnMaster 20-Inch Manual Push Reel Mower | Sun Joe 15-Inch Corded Dethatcher and Scarifier |
|---|---|---|
| Power Source | Manual | 13 Amp corded |
| Function | Mowing | Dethatching |
| Cutting Width | 20 in | 15 in |
| Drive Type | Push | not listed |
| Cutting Height Control | 9 positions (1.3-2.6 in) | 5 positions |
Which one should you choose?
Choose LawnMaster 20-Inch Manual Push Reel Mower if
- You need a traditional push mower to cut grass without using electricity or gas.
- You prefer a wider 20-inch cutting path to cover more ground with each pass.
- You want to adjust the cutting height across nine distinct positions.
Choose Sun Joe 15-Inch Corded Dethatcher and Scarifier if
- You need to remove thatch and aerate your lawn using a powered reel.
- You want a machine with a collection bag to gather debris and dead grass.
- You prefer a lighter 27.1-pound unit that glides on four wheels.
Verdict: Choose the LawnMaster if your primary goal is to cut grass using a manual, eco-friendly reel system. Select the Sun Joe if you need a powered tool to dethatch and aerate your lawn for better health. They serve distinct purposes, so your choice depends on whether you need mowing or lawn renovation.
LawnMaster vs Sun Joe Spec Showdown
Power Source
The LawnMaster 20-Inch Manual Push Reel Mower relies entirely on manual effort. It uses a motorless design with no gas or batteries needed. This makes it environmentally friendly but requires physical pushing. In contrast, the Sun Joe 15-Inch Corded Dethatcher and Scarifier uses a powerful 13-amp motor. It is plugged into a standard electrical outlet. This corded power source provides consistent energy for dethatching and scarifying tasks. You do not need to push as hard, but you are limited by cord length. Choose manual for zero energy use, or corded for powered assistance.
Cutting Width
Cutting width determines how much ground you cover in a single pass. The LawnMaster offers a 20-inch cutting width. This wider deck allows you to mow larger areas faster with fewer passes. The Sun Joe model features a 15-inch cutting width. While narrower, it is designed for dethatching rather than primary mowing. The wider 20-inch deck of the LawnMaster is better for general lawn maintenance. The 15-inch width of the Sun Joe is sufficient for targeted thatch removal. If your priority is covering more grass per stroke, the LawnMaster has the advantage.
Drive Type
The drive type affects how you move the machine across your yard. The LawnMaster is a push reel mower. You must provide all the forward momentum by walking and pushing it. There is no self-propulsion or motor assistance. The Sun Joe is also a push-style unit but includes a powered reel. The 13-amp motor spins the scarifier blades, reducing the effort needed to pull it over resistance. Both require you to push the unit. However, the powered reel of the Sun Joe reduces fatigue when dealing with dense thatch. The LawnMaster requires consistent physical exertion for every step.
Cutting Height Adjustment
Adjustable height settings allow you to customize the lawn care outcome. The LawnMaster provides nine distinct cutting positions. These range from 1.3 inches to 2.6 inches. This wide range lets you fine-tune the grass length for health and appearance. The Sun Joe features a five-position depth control. It is designed to adjust the dethatching depth rather than grass length. This allows precise control over how deep the scarifier blades penetrate the soil. For mowing height variety, the LawnMaster offers more options. For dethatching precision, the Sun Joe provides specific depth settings.
Primary Function
These tools serve different primary purposes on your lawn. The LawnMaster is a traditional push reel mower. It uses scissor-like action to cut grass blades cleanly without ripping. This promotes a healthier lawn by avoiding torn edges. The Sun Joe is a dethatcher and scarifier. It uses a reel with scarifier blades to remove thatch and aerate the soil. It revitalizes grass for greener growth. You cannot use the Sun Joe to mow grass height. You cannot use the LawnMaster to remove thatch. Choose the LawnMaster for mowing. Choose the Sun Joe for lawn revival and thatch removal.
Which mower fits your lawn needs?
You want a quiet, eco-friendly manual cut
The LawnMaster uses a motorless design with no gas or batteries. Its 20-inch cutting width and 9 height positions from 1.3 to 2.6 inches allow you to customize your cut. The scissor-like action protects grass blades. You push it manually, which offers zero emissions and quiet operation for small, flat lawns.
You need to remove thatch and aerate soil
The Sun Joe AJ805E is a dethatcher and scarifier, not a standard mower. It features a 13-amp corded motor to tackle tough thatch. The 15-inch reel clears debris into a collection bag. Its 5-position depth control lets you adjust for precise results. Use this tool to revitalize your lawn before or after mowing.
You prefer a wider cut for efficiency
The LawnMaster offers a 20-inch cutting width, which is wider than the Sun Joe's 15-inch reel. This allows you to cover more ground with each pass. The 10-inch front wheels aid maneuverability. Its durable steel blades and 9 height settings provide versatility. Choose this unit if you want a broader swath for manual mowing.
The products compared
LawnMaster 20-Inch Manual Push Reel Mower
Best for: small flat lawns needing manual mowing
- Power Source
- manual reel
- Cutting Width
- 20 in
- Drive Type
- push
- Cutting Height
- 1.3-2.6 in, 9 positions
- Application
- Lawn
- Dimensions
- 27.1 × 18.2 × 10.6 inches
View on Amazon: LawnMaster 20-Inch Manual Push Reel Mower Affiliate link
This is a manual push reel mower with a 20-inch cutting width. It uses five steel blades for a scissor-like cut that avoids tearing grass. You can adjust the cutting height across nine positions, ranging from 1.3 to 2.6 inches. The unit features 10-inch front wheels for navigation. It requires no gas or batteries, relying entirely on your pushing power.
Pros
- 20-inch cutting width for efficient coverage
- Nine adjustable cutting height positions
- Steel blades provide a clean scissor-like cut
- No gas or batteries required for operation
Cons
- Requires physical pushing power for operation
- Limited to small, flat lawns
- Heavier build due to steel construction
Good fit if
- You want a zero-emission mowing option
- You have a small, flat lawn
- You prefer manual maintenance-free equipment
Skip if
- You have a large or hilly yard
- You need a self-propelled drive system
- You prefer electric or gas power sources
Verdict: LawnMaster 20-Inch Push Reel Mower is a solid choice for small, flat lawns where you want a clean cut without fuel or batteries.
Sun Joe 15-Inch Corded Dethatcher and Scarifier
Best for: aerating lawns and removing thatch
- Power Source
- 13-Amp Corded
- Cutting Width
- 15-Inch
- Application
- Yard, Lawn
- Dimensions
- 24.4 × 19.3 × 12.2 inches
- Weight
- 27.1 pounds
View on Amazon: Sun Joe 15-Inch Corded Dethatcher and Scarifier Affiliate link
This Sun Joe AJ805E is a corded lawn dethatcher with a 13-amp motor and a 15-inch working width. It weighs 27.1 pounds and features four easy-glide wheels for smooth maneuverability. The unit includes a large, removable collection bag and a 5-position depth control. It is designed for homeowners who need to remove tough thatch and aerate their lawn for healthier grass growth.
Pros
- 13-amp motor removes tough thatch
- 15-inch cutting width
- 5-position depth control
- Large removable collection bag
Cons
- Corded power limits range
- 15-inch width is narrower than competitors
- Heavier build at 27.1 pounds
Good fit if
- You need to remove tough thatch
- You want adjustable dethatching depth
- You prefer a corded motor for consistent power
Skip if
- You need cordless freedom
- You want a wider cutting path
- You are looking for a standard lawn mower
Verdict: Sun Joe 15-Inch Corded Lawn Dethatcher is a solid choice for homeowners who need to aerate their lawn and remove thatch with a powerful corded motor. It fits users who prioritize depth control and collection capacity over portability.
Specifications side by side
| Spec | LawnMaster 20-Inch Manual Push Reel Mower | Sun Joe 15-Inch Corded Dethatcher and Scarifier |
|---|---|---|
| Power Source | manual reel | 13-Amp Corded |
| Cutting Width | 20 in | 15-Inch |
| Drive Type | push | not stated |
| Cutting Height | 1.3-2.6 in, 9 positions | not stated |
| Application | Lawn | Yard, Lawn |
| Dimensions | 27.1 × 18.2 × 10.6 inches | 24.4 × 19.3 × 12.2 inches |
| Weight | not stated | 27.1 pounds |
| Size | 20-Inch | Corded; 15.0-Inch |
| Color | Orange | GREEN |
| Model | LMRM2001 | AJ805E |
Frequently asked questions
Is LawnMaster better than Sun Joe for cutting grass?
LawnMaster is better if you want a traditional cut. The B0GQGWLYQT is a 20-inch manual reel mower. It provides a clean scissor-like cut. Sun Joe is better for lawn maintenance. The AJ805E dethatcher aerates soil. It removes thatch buildup. Choose LawnMaster for mowing. Choose Sun Joe for aeration.
Does Sun Joe have a lawn mower?
Sun Joe does not offer a standard lawn mower in this list. The AJ805E is a corded dethatcher and scarifier. It uses a 15-inch cutting width. It focuses on removing thatch and aerating. It is not designed for regular grass cutting. You need a dedicated mower for standard lawn care tasks.
Which is lighter, LawnMaster or Sun Joe?
The LawnMaster is lighter. It has no motor or battery. The Sun Joe AJ805E weighs 27.1 pounds. It includes a corded motor and collection system. The LawnMaster is easier to push manually. The Sun Joe requires more effort due to its weight. Consider your physical strength when choosing.
Can I use Sun Joe to mow my lawn?
No, you cannot use the Sun Joe AJ805E to mow. It is a dethatcher and scarifier. It removes dead grass and aerates soil. It does not cut grass blades. Use the LawnMaster B0GQGWLYQT for mowing. It has a 20-inch reel for cutting. The Sun Joe tool is for maintenance only.
What is the cutting width difference?
The LawnMaster has a 20-inch cutting width. The Sun Joe dethatcher has a 15-inch width. The LawnMaster covers more ground per pass. The Sun Joe is narrower for precision work. The difference is five inches. Choose the wider option for faster mowing. Choose the narrower one for detailed aeration.
Do I need a battery for LawnMaster?
No, you do not need a battery. The LawnMaster B0GQGWLYQT is a manual push mower. It has no motor or electric components. You provide all the power by pushing. This makes it silent and eco-friendly. You never need to charge batteries. It is ideal for small, flat lawns.

