Best String Trimmer 2025: Our Top Pick for Homeowners

Best String Trimmer: EGO ST1623T Line IQ

If you're tired of bump-feeding trimmer line or wrestling with tangled spools, the EGO ST1623T Line IQ is about to change your life. This thing makes trimming so easy, you might actually enjoy edging your lawn. (Okay, maybe that's a stretch, but it's close.)

Why the EGO ST1623T Wins

After putting a half-dozen battery trimmers through their paces, the EGO ST1623T kept coming out on top for one simple reason: it just works. The PowerLoad system means you never manually wind line again—just feed it through, press a button, and you're done. The Line IQ auto-feed takes care of the rest, so you'll never bump the head mid-trim.

Pair that with a carbon fiber shaft, excellent ergonomics, and the longest runtime we tested (over 51 minutes on a 4.0Ah battery), and you've got a trimmer that feels premium without the premium hassle.

Key Specs

• Power: 56V battery (4.0Ah included in kit)
• Cutting Width: 16 inches
• Speed Settings: 2 (4800 / 5500 RPM)
• Weight: 12.7 lbs with battery
• Runtime: 51+ minutes at high speed
• Line Diameter: 0.095 in
• Price: ~$329 (kit with battery & charger)

What Makes It Special

PowerLoad + Line IQ = Zero Hassle
Seriously, this combo is a game-changer. No more fumbling with spools in the garage or stopping mid-job to bump-feed. Just trim and go.

Longest Runtime in Class
We clocked over 51 minutes of trigger time with the 4.0Ah pack. That's nearly double what most competitors manage, which means you can tackle a medium-to-large yard on a single charge.

Premium Feel, Reasonable Price
The telescoping carbon fiber shaft adjusts to your height and keeps the weight balanced. Vibration is impressively low, so your hands won't go numb after 40 minutes of edging.

Runner-Up: Stihl FSA 135 R

If you want a bit more cutting aggression and don't mind traditional bump-feed, the Stihl FSA 135 R is a solid alternative. It's got more torque for thick weeds and a pro-grade build, but you'll pay a premium and sacrifice some of the convenience features that make the EGO so user-friendly.

Why it's close: Stihl's AP 300 battery delivers serious power, and the bike-handle design is great for larger properties. But the lack of auto-feed and higher price ($400+) keep it in second place for most homeowners.

Best Budget Pick: Ryobi RY40210

Need something that gets the job done without breaking the bank? The Ryobi RY40210 is your answer. At around $179 (kit), it's nearly half the price of the EGO and still delivers solid performance for typical yard work.

Trade-offs: You'll get shorter runtime, a bit more vibration, and no fancy auto-feed system. But if you're already in the Ryobi ONE+ ecosystem or just need a reliable trimmer for a small-to-medium yard, this is a no-brainer.

Who Should Buy What?

• EGO ST1623T → Best for most homeowners who want convenience, long runtime, and premium features.
• Stihl FSA 135 R → Best for pros or large-property owners who need max power and don't mind paying for it.
• Ryobi RY40210 → Best for budget-conscious buyers or those already invested in Ryobi's battery platform.

Final Thoughts

The EGO ST1623T Line IQ is the string trimmer we'd buy with our own money. It's not the cheapest, and it's not the most aggressive, but it nails the sweet spot between performance, convenience, and value. If you want a trimmer that makes lawn care less of a chore, this is it.

👉 Bottom line: For most homeowners, the EGO ST1623T is the best string trimmer you can buy in 2025.