RYOBI ONE+ 18V 13 in. vs RYOBI 40V Attachment Capable 15" (2026): Key Differences
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The ryobi one 18v 13 in vs 40v attachment capable 15 comparison highlights two distinct tools from the same brand. Both are cordless string trimmers designed for yard maintenance. They share a green color scheme and offer comparable battery capacities. The main difference lies in their power systems and versatility. One uses the 40V platform with expandable attachments, while the other relies on the 18V ONE+ system with edging capabilities. Understanding these specs helps you pick the right tool for your lawn.
Key differences
| Aspect | RYOBI 40V 15-Inch Attachment Capable String Trimmer | RYOBI ONE+ 18V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 40V | 18V |
| Cutting Width | 15 in. | 11 in. to 13 in. |
| Drive Type | Attachment Capable | Fixed Shaft |
| Weight | 11 pounds | 7 pounds |
| Included Battery | Tool Only | 4.0 Ah Battery and Charger |
Which one should you choose?
Choose RYOBI 40V 15-Inch Attachment Capable String Trimmer if
- You need a wider 15-inch cutting swath for faster trimming.
- You want to use other EXPAND-IT attachments like a blower or hedge trimmer.
- You prefer more power comparable to a 21cc gas trimmer.
Choose RYOBI ONE+ 18V 13-Inch String Trimmer and Edger if
- You want a lighter 7-pound tool for easier handling.
- You need the ability to pivot the head for edging along sidewalks.
- You prefer a package that includes the battery and charger right away.
Verdict: Choose the 40V model if you prioritize cutting width and system versatility with attachments. The 18V model is better if you value a lighter weight and the specific function of edging. Your choice depends on whether you need a broader cutting path or a more compact, multi-use edger.
Key Differences Between RYOBI Trimmers
Voltage platform
The RYOBI 40V 15-Inch Attachment Capable String Trimmer operates on a 40V system. This higher voltage provides more power than a 21cc gas trimmer, making it suitable for tougher jobs. In contrast, the RYOBI ONE+ 18V 13-Inch String Trimmer and Edger uses an 18V system. While sufficient for lighter tasks, it delivers less raw power than the 40V model. You should choose the 40V unit if you need gas-like performance, or the 18V model if you already own the ONE+ battery ecosystem.
Cutting width
Cutting swath determines how much ground you cover per pass. The RYOBI 40V model offers a fixed 15-inch cutting width. This wider deck allows you to clear grass faster in open areas. The RYOBI ONE+ 18V model features an adjustable cutting width ranging from 11 inches to 13 inches. This flexibility helps you navigate tighter spaces or switch between edging and trimming modes. If you prioritize maximum coverage speed, the 15-inch fixed width is superior. If you need adaptability for edging, the adjustable 18V model is the better choice.
Shaft compatibility
The shaft type defines how versatile the tool is beyond basic trimming. The RYOBI 40V 15-Inch model is EXPAND-IT attachment capable. This means you can connect other tools like weed whackers or edgers to the same shaft, saving space and money. The RYOBI ONE+ 18V model is a dedicated string trimmer and edger. It pivots for edging but does not support additional EXPAND-IT attachments. If you want a multi-tool system, the 40V attachment-capable shaft is the clear advantage.
Weight and portability
Weight affects how fatiguing a tool is during extended use. The RYOBI 40V 15-Inch Attachment Capable String Trimmer weighs 11 pounds. It is longer at 40 inches, which may feel heavier for some users. The RYOBI ONE+ 18V 13-Inch String Trimmer and Edger is significantly lighter at 7 pounds. It is also shorter at 28 inches. This lightweight design makes it easier to carry around the yard and maneuver in tight spots. For users prioritizing ease of handling and reduced strain, the 18V model is the lighter option.
Battery inclusion
Battery inclusion impacts immediate usability and initial setup. The RYOBI 40V 15-Inch model is sold as a bare tool. It does not include a battery or charger, requiring you to purchase them separately if you do not already own 40V batteries. The RYOBI ONE+ 18V model includes an 18-Volt 4.0 Ah battery and charger. This means you can start using it right out of the box. If you already have compatible batteries, the bare tool is efficient. Otherwise, the 18V bundle offers immediate readiness.
Which RYOBI trimmer fits your yard
Users needing gas replacement power
This 40V model delivers more power than a 21cc gas trimmer. The 15-inch cutting swath handles wider areas efficiently. It supports up to 71 minutes of runtime with a 40V 4Ah battery. The attachment-capable shaft lets you expand your tool system. Choose this if you prioritize raw power and versatility for larger tasks.
Lightweight edging and precision work
This 18V trimmer weighs only 7 pounds, making it easy to maneuver. The head pivots for edging along sidewalks and borders. It includes a 4.0 Ah battery and charger for immediate use. The adjustable cutting width ranges from 11 to 13 inches. Select this for precise control and lighter daily maintenance duties.
Budget-conscious buyers wanting included gear
This package includes the battery and charger, so you can start working right away. The 18V ONE+ system is compatible with many other tools. It features an auto-feed line head for convenience. The 3-year warranty provides additional peace of mind. Pick this if you want a complete solution without buying extra components separately.
The products compared
RYOBI 40V 15-Inch Attachment Capable String Trimmer
Best for: Users with existing 40V batteries wanting attachments
- Voltage
- 40V
- Cutting Swath
- 15 in
- Cutting Width
- 15-Inch
- Included Battery
- Tool Only
- Shaft Type
- Attachment Capable
- Dimensions
- 40 × 13 × 5 inches
View on Amazon: RYOBI 40V 15-Inch Attachment Capable String Trimmer Affiliate link
This is a 40V string trimmer with a 15-inch cutting swath. It weighs 11 pounds and measures 40 inches in length. The shaft is attachment capable, allowing you to use other EXPAND-IT tools. It offers up to 71 minutes of runtime with a 40V 4Ah battery. This model is a bare tool, so you must supply your own battery. It is designed for users who want a gas replacement with versatile attachment options.
Pros
- 15-inch cutting swath
- Attachment capable shaft
- Up to 71 minutes runtime with 40V 4Ah battery
- Weighs 11 pounds
Cons
- Sold as a bare tool without a battery
- 40-inch length may be cumbersome for tight spaces
- Heavier than 18V competitors
Good fit if
- You already own RYOBI 40V batteries
- You want to use multiple EXPAND-IT attachments
- You need a wider cutting swath than 13 inches
Skip if
- You need a complete kit with a battery included
- You prefer a lighter 18V system
- You only need a standalone trimmer without attachments
Verdict: RYOBI 40V 15" Attachment Trimmer is ideal for homeowners who already have RYOBI 40V batteries and want a versatile tool that can handle different yard tasks with attachments.
RYOBI ONE+ 18V 13-Inch String Trimmer and Edger
Best for: Small yards needing edging and a complete kit
- Voltage
- 18V
- Cutting Swath
- 11 in. to 13 in.
- Line Feed System
- auto-feed
- Battery Capacity
- 4.0Ah
- Cutting Width
- 13-Inch
- Power Source
- Cordless
View on Amazon: RYOBI ONE+ 18V 13-Inch String Trimmer and Edger Affiliate link
This RYOBI string trimmer offers a 13-inch cutting width with an adjustable range from 11 to 13 inches. It runs on an 18V 4.0 Ah battery and features an auto-feed line head. The lightweight design weighs 7 pounds, and the head pivots for edging. It includes a charger and comes with a 3-year warranty. This model suits users who need a versatile, portable tool for small to medium yards.
Pros
- 13-inch adjustable cutting width
- Includes 4.0 Ah battery and charger
- Auto-feed line head
- Lightweight 7-pound design
- Head pivots for edging
Cons
- 18V system has less power than 40V options
- 13-inch cutting width is narrower than 15-inch models
- Heavier than some bare-tool competitors
Good fit if
- You want a complete kit with battery and charger
- You need edging capability with a pivoting head
- You prefer a lightweight tool for easy handling
Skip if
- You require a 40V platform for larger properties
- You need a 15-inch cutting swath for faster mowing
- You already own 18V batteries and want a bare tool
Verdict: RYOBI 18V 13 in. String Trimmer fits homeowners who value a complete, ready-to-use kit with edging versatility. It is ideal for small yards where a lighter, 18V tool is sufficient.
Specifications side by side
| Spec | RYOBI 40V 15-Inch Attachment Capable String Trimmer | RYOBI ONE+ 18V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 40V | 18V |
| Cutting Swath | 15 in | 11 in. to 13 in. |
| Line Feed System | not stated | auto-feed |
| Battery Capacity | not stated | 4.0Ah |
| Cutting Width | 15-Inch | 13-Inch |
| Power Source | not stated | Cordless |
| Included Battery | Tool Only | not stated |
| Shaft Type | Attachment Capable | not stated |
| Dimensions | 40 × 13 × 5 inches | 28 × 10 × 5 inches |
| Weight | 11 pounds | 7 pounds |
| Size | RY40205 | 13 inches |
| Color | Ryobi Green | GREEN |
| Model | RY40205 | P20180 |
Frequently asked questions
Which RYOBI trimmer has the wider cutting width?
The RYOBI 40V 15-Inch Attachment Capable String Trimmer offers the wider cutting width. It features a 15-inch swath compared to the 13-inch width of the ONE+ 18V model. This larger width allows you to clear more grass with each pass, making it more efficient for larger lawns and tougher vegetation.
Does the 40V model come with a battery included?
No, the RYOBI 40V 15-Inch Attachment Capable String Trimmer is sold as a tool-only unit. You will need to purchase a compatible 40V battery separately. This design benefits existing RYOBI 40V users who already have batteries and chargers, allowing you to use your current power source without buying a new kit.
Can the 18V model be used as an edger?
Yes, the RYOBI ONE+ 18V 13-Inch String Trimmer includes edging functionality. This dual-purpose feature lets you switch from trimming to edging without changing tools. It is particularly useful for homeowners with small yards who need a versatile, lightweight tool for maintaining edges along sidewalks and garden beds efficiently.
Which trimmer is lighter and easier to handle?
The RYOBI ONE+ 18V 13-Inch String Trimmer is the lighter option. Weighing only 7 pounds, it is significantly easier to maneuver than the 40V model, which weighs 11 pounds. This reduced weight makes the 18V version ideal for users who prefer a less fatiguing experience during extended trimming sessions.
Is the 40V model attachment capable?
Yes, the RYOBI 40V 15-Inch model is explicitly attachment capable. This means you can connect other compatible RYOBI 40V tools to the same shaft system. It offers versatility for various yard tasks beyond just trimming, making it a practical choice for homeowners who want a multi-functional tool for their outdoor maintenance needs.
What battery capacity does the 18V kit include?
The RYOBI ONE+ 18V 13-Inch String Trimmer kit includes a 4.0 Ah battery. This capacity provides sufficient runtime for small to medium-sized yards. Having the battery included in the package means you can start using the tool immediately without needing to purchase additional power sources separately for basic lawn care tasks.