Best String Trimmers Under $100 (2026)
The best cordless string trimmers under $100, adding established brand manufacturing, 3-in-1 combo tools, and 40V power beyond the sub-$50 tier.
At a Glance
WORX 20V 12-Inch 2-in-1 Cordless String Trimmer and Electric Lawn Edger, WG163
↓ See why we picked itBLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed
↓ See why we picked itWorx 20V 12-Inch 3-in-1 Cordless String Trimmer, Lawn Edger, and Mini Mower, WG170.2
↓ See why we picked itGreenworks 24V 12-Inch Cordless String Trimmer, 2.0 Ah Battery and Charger
↓ See why we picked itGreenworks 40V 12-Inch Cordless String Trimmer, Battery and Charger Not Included
↓ See why we picked itBetween $50 and $100, string trimmers start including established brand manufacturing like WORX and Black+Decker, plus 3-in-1 combo functionality and access to 40V power. We compared five current models that stay genuinely under this ceiling.
3 Criteria to Look For Before Buying a String Trimmers Under $100 (2026)
Key buying criteria so you get the right fit the first time.
What This Budget Adds Over Under $50
Between $50 and $100, you gain established brand manufacturing like WORX and Black+Decker, 3-in-1 combo functionality, and access to 40V bare-tool options.
If established brand backing or added combo functions matter to you, this budget tier is worth the increase over the cheapest options.
2-in-1 vs. 3-in-1 vs. Single Function
These five models span single-function trimming, 2-in-1 trimmer and edger combos, and one 3-in-1 design with an added mini mower mode.
Decide whether added combo functions are genuinely useful for your yard before paying more for versatility you might not use.
Bare Tool vs. Complete Kit
One model here is sold bare tool, assuming existing Greenworks 40V batteries, while the other four include batteries as part of the package.
Factor in the real total cost of the bare-tool listing if you don't already own compatible 40V batteries.
Best String Trimmers Under $100 (2026)
WORX 20V 12-Inch 2-in-1 Cordless String Trimmer and Electric Lawn Edger, WG163
About this pick
This straightforward 2-in-1 design pivots between trimming and edging without swapping attachments, from an established brand with a genuine track record in outdoor power equipment.
It leaves solid room under this budget's ceiling while offering genuine WORX manufacturing the newer brands here don't carry, meaning both the trimmer and edger functions come from the same tested engineering rather than a rebadged generic design.
The 12-inch swath is on the compact side, well suited to a smaller yard where quick maneuvering around beds and borders matters more than covering the maximum ground per pass.
Best for: most buyers wanting established brand 2-in-1 functionality
Check price on AmazonSpecs
- Function: Trimmer and Edger
- Brand: Established
- Swath: 12-Inch
Pros
- +Pivots between trimming and edging without swapping parts
- +Established brand with a solid outdoor equipment track record
- +Leaves substantial room under this budget's ceiling here
Cons
- −No third function like the 3-in-1 model
- −20V power may be limited for thick, overgrown weeds
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed
About this pick
This complete kit combines automatic spool feed with 2-in-1 trimmer and edger functionality, from one of the longest-established names in home power tools, meaning the line advances on its own as it wears rather than requiring you to stop and manually adjust it.
It leaves comfortable room under this budget's ceiling with genuine automatic feed convenience, a combination that's harder to find together at the lowest tier of this category.
The 20V platform here is on the lower end of available voltages, which is entirely sufficient for routine grass and light weeds but may struggle with thicker, more established growth.
Best for: buyers wanting automatic feed with established brand backing
Check price on AmazonSpecs
- Feed: Auto Spool
- Function: Trimmer and Edger
- Brand: Established
Pros
- +Automatic spool feed avoids manual line adjustment hassle
- +Established brand reputation in home power tools
- +Doubles as both a trimmer and an edger
Cons
- −20V power may be limited for thick, overgrown weeds
- −No confirmed brushless motor on this specific model
Worx 20V 12-Inch 3-in-1 Cordless String Trimmer, Lawn Edger, and Mini Mower, WG170.2
About this pick
This model adds a third mini mower function using an included wheel set, genuinely useful for small patches of grass too tight for a full-size mower.
It leaves a small amount of room under this budget's ceiling for a buyer wanting the most versatility this budget allows.
Best for: small yards wanting maximum versatility within this budget
Check price on AmazonSpecs
- Function: Trimmer, Edger, Mini Mower
- Feature: Includes Wheel Set
- Swath: 12-Inch
Pros
- +Third mini mower function covers tight grass patches
- +Includes wheel set for the mini mower mode
- +12-inch swath matches the other picks' coverage
Cons
- −Mini mower mode isn't a substitute for a full-size
- −Switching between three modes takes more setup time
Greenworks 24V 12-Inch Cordless String Trimmer, 2.0 Ah Battery and Charger
About this pick
This entry-level 24V model includes a complete kit at an accessible price, leaving $28 of room under this budget's ceiling.
For most buyers wanting genuine Greenworks manufacturing without paying for combo functionality they might not use, this is a solid single-function pick.
Best for: buyers wanting a genuine single-function kit at good value
Check price on AmazonSpecs
- Voltage: 24V
- Kit: Complete
- Price Tier: Leaves Room Under Budget
Pros
- +Genuinely complete kit, battery and charger included
- +Leaves substantial room under this budget's ceiling here
- +Accessible price for genuine Greenworks manufacturing overall
Cons
- −No 2-in-1 edger function like the WORX or Black+Decker
- −24V power may be limited for thicker, overgrown weeds
Greenworks 40V 12-Inch Cordless String Trimmer, Battery and Charger Not Included
About this pick
Sold bare tool without a battery, this 40V model offers more power than the 24V pick above at a lower listed price, for an existing Greenworks 40V owner.
It leaves comfortable room under this budget's ceiling for a buyer who already owns compatible batteries.
Best for: existing Greenworks 40V owners wanting more power
Check price on AmazonSpecs
- Voltage: 40V
- Sold As: Bare Tool
- Price Tier: Lower Listed
Pros
- +Lower listed price for existing 40V battery owners
- +More sustained power than the 24V complete kit
- +Leaves substantial room under this budget's ceiling here
Cons
- −Sold bare tool, battery and charger not included
- −Real cost is higher without existing Greenworks 40V batteries
How We Evaluated These String Trimmers Under $100 (2026)
Each pick was assessed across 3 criteria weighted for real-world use.
Real, Current Listings
All five products are currently listed string trimmers verified against live Amazon catalog data, confirmed to be priced under $100 at the time of research.
Budget Ceiling Verification
We specifically confirmed each listing's current price stays under this budget's $100 ceiling rather than assuming a product fits based on its category.
Function and Feature Comparison
We compared 2-in-1 versus 3-in-1 functionality, brand track record, and kit completeness across all five models within this shared budget.
How to Choose the Right String Trimmers Under $100 (2026)
By Priority
| Priority | Recommended Pick |
|---|---|
| Established brand, 2-in-1 | WORX WG163 |
| Automatic feed, established brand | Black+Decker Auto Spool |
| Maximum versatility | WORX 3-in-1 WG170.2 |
| Single-function value | Greenworks 24V |
| Existing 40V battery owner | Greenworks 40V Bare Tool |
By Budget Room to Spare
| Priority | Recommended Pick |
|---|---|
| Most room to spare | Black+Decker Auto Spool or Greenworks 24V |
| Moderate room | WORX WG163 or Greenworks 40V |
| Least room, most versatile | WORX 3-in-1 |
2-in-1 vs. 3-in-1: The Verdict
The right choice depends on whether the mini mower function genuinely helps your yard.
Choose 2-in-1 if
Trimming and edging are your only real needs, keeping the tool simpler.
Choose 3-in-1 if
Your yard has small grass patches where a mini mower mode would genuinely help.
By Existing Battery Ownership
| Situation | Recommended Pick |
|---|---|
| Already own Greenworks 40V batteries | Greenworks 40V Bare Tool |
| No existing 40V batteries | WORX, Black+Decker, or Greenworks 24V |
For Automatic Feed Specifically
Look for
Confirmed automatic feed technology to avoid interrupting your session to manage the line manually.
In this comparison
The Black+Decker model specifically includes automatic spool feed.
When to Consider a Higher Budget
Consider spending more if
You want a genuine 40V complete kit or a wider cutting swath.
Our Under $150 guide covers
Options with more sustained power and wider swaths.
Frequently Asked Questions
What extra features do you get under $100 versus under $50?
Between $50 and $100, you gain established brand manufacturing like WORX and Black+Decker, 3-in-1 combo functionality, and access to 40V bare-tool options for existing battery owners.
Is a 3-in-1 combo tool worth it under $100?
Yes, if your yard has small grass patches too tight for a full-size mower. The WORX 3-in-1 model in this comparison adds this function at the top of this budget.
Which string trimmer under $100 has automatic feed?
The Black+Decker model specifically includes automatic spool feed, advancing the cutting line without manual bumping, within this budget.
Can you get a 40V string trimmer under $100?
Yes, the Greenworks 40V model in this comparison is sold bare tool under $60, though it requires an existing compatible battery to use.
Bottom Line
best overall: WORX 20V 12-Inch 2-in-1 Cordless String Trimmer and Electric Lawn Edger, WG163 - 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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