Buying Guide
Our Guide to the Best Ryobi Cordless String Trimmers
Compared using published specifications, included components, compatibility, and practical trade-offs.
By Gardening Is Ezee Editors
8 min read2 products evaluated
Ryobi'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.
Gardening Is Ezee field notes
The Garden Fit Check
A quick way to connect the shortlist to the space, workload and ownership details that matter after the box arrives.
- Start with the job
- RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included leads this shortlist for buyers wanting a complete kit with future attachment expansion. Use that fit as a reference point, then compare the alternatives against your own space and workload.
- Specs that separate the picks
- The first details to compare are Expand-It Attachment Capable, 15-Inch Cutting Swath. Confirm the exact model and included components before ordering.
- Trade-off to plan for
- Attachment system adds some weight to the motor head
The Practical Shortlist
A garden-first look at 2 options, organized around the job each one suits best.
Best Overall
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included
buyers wanting a complete kit with future attachment expansion
Our take Check price for RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included (opens in a new tab)
Best Bare Tool Pick
RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool
existing Ryobi 40V owners wanting a wider cutting swath
Our take Check price for RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool (opens in a new tab)
| Pick | Best for | Key spec | Price |
|---|---|---|---|
| buyers wanting a complete kit with future attachment expansion | Expand-It Attachment Capable | Check price for RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included (opens in a new tab) |
| existing Ryobi 40V owners wanting a wider cutting swath | 15-Inch Cutting Swath | Check price for RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool (opens in a new tab) |
Why Each Pick Made the Cut
Best Overall1 of 2
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included on Amazon (opens in a new tab)
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Included makes the shortlist because genuinely complete kit, substantial 4.0Ah battery included.
Best for
- buyers wanting a complete kit with future attachment expansion
Why it made the shortlist
This model is aimed at buyers wanting a complete kit with future attachment expansion. The documented setup centers on expand-It Attachment Capable, 4.0Ah Battery Included, complete Kit.
The most useful documented advantage is genuinely complete kit, substantial 4.0Ah battery included. Against the other 1 picks, the useful comparison starts with expand-It Attachment Capable and 4.0Ah Battery Included. Those details show whether its configuration suits the job better than a neighboring recommendation.
The main limitation to plan around is attachment system adds some weight to the motor head. Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.
Key dimensions & specs
- Expand-It Attachment Capable
- 4.0Ah Battery Included
- Complete Kit
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
- Attachment system adds some weight to the motor head
Best Bare Tool Pick2 of 2
RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool on Amazon (opens in a new tab)
RYOBI 40V Attachment Capable 15" String Trimmer, Bare Tool is the better fit when existing Ryobi 40V owners wanting a wider cutting swath.
Best for
- existing Ryobi 40V owners wanting a wider cutting swath
Why it made the shortlist
The intended use case is existing Ryobi 40V owners wanting a wider cutting swath. The documented setup centers on 15-Inch Cutting Swath, bare Tool, expand-It Attachment Capable.
What separates it on paper is wider 15-inch cutting swath than the complete kit pick. Against the other 1 picks, the useful comparison starts with 15-Inch Cutting Swath and bare Tool. Those details show whether its configuration suits the job better than a neighboring recommendation.
Before committing, account for sold bare tool, battery and charger not included. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- 15-Inch Cutting Swath
- Bare Tool
- Expand-It Attachment Capable
Pros
- Wider 15-inch cutting swath than the complete kit pick
- Expand-It system accepts other Ryobi pole attachments
Cons
- Sold bare tool, battery and charger not included
- Real cost is higher without existing Ryobi 40V batteries
How We Built This Shortlist
Each pick was assessed across 3 criteria weighted for real-world use.
- Real, Current Listings
- We compared capacity, compatibility, included components, operating limits and warranty documentation.
- 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.
What Matters Before You Choose 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.
Match a Ryobi Cordless String Trimmers (2026) to Your Garden or Yard
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.
Before You Bring One Home
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 verdicts above for every pick, with pros, cons and who each one suits.
Browse all ryobi cordless string trimmers (2026) on Amazon — Prime-eligible options with current pricing.