ECHO SRM-225 vs STIHL FS 91 R

Last updated: October 31, 2026

The ECHO SRM-225 is the better string trimmer overall, rated 3.9 to 3.2. The ECHO SRM-225 leads on warranty, value and weight. The STIHL FS 91 R wins on line. The ECHO SRM-225 costs $100 less ($279.99 vs $379.99).

ECHO SRM-225 vs STIHL FS 91 R

Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every gas string trimmer; a clear win is highlighted. How we rank explains each one.

Factor weightECHO SRM-225STIHL FS 91 R
Overall rating3.9/53.2/5
Value 30%52 $16.47 per inch of swath ($279.99, 17 in swath)19 $23.03 per inch of swath ($379.99, 16.5 in swath)
Line 20%60 .095 in line100 .105 in line
Swath 15%75 17 in swath62 16.5 in swath
Weight 15%63 11.2 lb (dry)50 12 lb (dry)
Warranty 20%100 5-year warranty25 2-year warranty

Specifications

ECHO SRM-225STIHL FS 91 R
Cutting
Cutting swath17 in16.5 in
Largest line.095 in.105 in
Line feedBump feedBump feed
ShaftStraightStraight
Converts to edgerNoNo
Takes attachmentsNoNo
Power
Engine or battery21.2 cc, 2-stroke28.4 cc, 4-stroke
Build
Weight11.2 lb (dry)12 lb (dry)
Warranty5 years2 years

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