Best Ryobi Cordless String Trimmers (2026)
The best Ryobi cordless string trimmers on the 40V Expand-It attachment-capable platform, compared by cutting swath, motor design, and price.
At a Glance
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included
↓ See why we picked itRyobi's 40V string trimmer lineup is built around its Expand-It attachment system, letting the same motor head accept other Ryobi pole attachments beyond just trimming. We compared two current genuine Ryobi 40V models on kit completeness and motor technology.
3 Criteria to Look For Before Buying a Ryobi Cordless String Trimmers (2026)
Key buying criteria so you get the right fit the first time.
Expand-It Attachment System Value
Ryobi's Expand-It system lets the same motor head accept other Ryobi pole attachments like edgers, pole saws, or hedge trimmers, a genuine long-term value beyond just this single trimmer purchase.
This matters most if you're likely to add other pole attachments later rather than needing only a string trimmer.
Complete Kit vs. Bare Tool
One model here includes a battery and charger as a complete kit, while the other is sold bare tool for existing 40V owners.
Factor in the real total cost of the bare-tool listing if you don't already own compatible Ryobi 40V batteries.
Cutting Swath Width
A wider cutting swath covers more ground per pass, meaningfully reducing the time needed to trim a larger yard.
Check stated cutting swath specifically if you have a larger area to cover regularly.
Best Ryobi Cordless String Trimmers (2026)
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included
About this pick
This genuine Ryobi model includes a substantial 4.0Ah battery and charger as a complete kit, with the Expand-It attachment system letting the motor head accept other Ryobi pole tools later.
For a buyer who wants both a ready-to-use trimmer and future expansion into edgers, pole saws, or hedge trimmer attachments, this is the strongest overall pick.
Best for: buyers wanting a complete kit with future attachment expansion
Check price on AmazonSpecs
- System: Expand-It Attachment
- Battery: 4.0Ah Included
- Kit: Complete
Pros
- +Genuinely complete kit, substantial 4.0Ah battery included
- +Expand-It system accepts other Ryobi pole attachments
- +Established Ryobi manufacturing and ecosystem support overall
Cons
- −Higher price than the bare-tool alternative overall
- −Attachment system adds some weight to the motor head
RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool
About this pick
This bare-tool model offers a wider 15-inch cutting swath than the complete kit above, for an existing Ryobi 40V owner who doesn't need another battery.
Without battery and charger included, the real cost is higher for a buyer starting fresh, so this makes most sense specifically for someone already invested in Ryobi's 40V platform.
Best for: existing Ryobi 40V owners wanting a wider cutting swath
Check price on AmazonSpecs
- Swath: 15-Inch
- Sold As: Bare Tool
- System: Expand-It Attachment
Pros
- +Wider 15-inch cutting swath than the complete kit pick
- +Expand-It system accepts other Ryobi pole attachments
- +Lower price for existing 40V battery owners
Cons
- −Sold bare tool, battery and charger not included
- −Real cost is higher without existing Ryobi 40V batteries
How We Evaluated These Ryobi Cordless String Trimmers (2026)
Each pick was assessed across 3 criteria weighted for real-world use.
Real, Current Listings
Both products are currently listed genuine Ryobi 40V string trimmers verified against live Amazon catalog data for price and stated specifications.
Attachment System Verification
We confirmed both models are Expand-It attachment capable, sharing a motor head design with Ryobi's broader pole tool lineup.
Kit Completeness Comparison
We noted which model includes a battery and charger versus being sold bare tool, materially affecting real total cost.
How to Choose the Right Ryobi Cordless String Trimmers (2026)
By Existing Battery Ownership
| Situation | Recommended Pick |
|---|---|
| No existing Ryobi 40V batteries | Complete Kit Pick |
| Already own Ryobi 40V batteries | Bare Tool Pick |
By Budget
| Budget | Recommended Pick |
|---|---|
| Lower cost, own battery needed | Bare Tool Pick |
| All-inclusive complete kit | Complete Kit Pick |
Complete Kit vs. Bare Tool: The Verdict
The right choice depends entirely on your existing battery investment.
Choose the complete kit if
You're new to Ryobi's 40V platform and want an all-inclusive purchase.
Choose the bare tool if
You already own compatible Ryobi 40V batteries and want the wider swath.
By Cutting Swath
| Need | Recommended Pick |
|---|---|
| Wider swath for larger areas | Bare Tool 15-Inch |
| Standard swath is sufficient | Complete Kit Pick |
For Future Attachment Expansion Specifically
Look for
Confirmed Expand-It compatibility if you plan to add other Ryobi pole tools later.
In this comparison
Both models specifically support the Expand-It attachment system.
When to Spend More
Spend more if
You want the complete kit's included battery and charger for immediate use.
Save if
You already own Ryobi 40V batteries and just need the trimmer attachment.
Frequently Asked Questions
What is Ryobi's Expand-It system?
It's an attachment system that lets the same motor head accept different Ryobi pole tools, like string trimmers, edgers, pole saws, and hedge trimmers, without buying a separate motor for each.
Do Ryobi string trimmers include a battery and charger?
It varies by listing. One model compared here includes a substantial 4.0Ah battery and charger as a complete kit, while the other is sold bare tool for existing 40V owners.
Is Ryobi's 40V platform good for other yard tools too?
Yes, the Expand-It attachment system specifically lets you expand into other Ryobi pole tools using the same motor head, a genuine long-term value if you plan to add more tools.
Which Ryobi string trimmer has the wider cutting swath?
The bare-tool model offers a 15-inch cutting swath, wider than the complete kit pick, useful for covering larger areas more quickly per pass.
Bottom Line
best overall: RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included - best overall pick in this roundup.
See the full rankings above for all picks with pros, cons, and best-for summaries.
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