Worx Nitro WG185 40V 15 in
#9 in BatteryFull review
A strong 15 in. trimmer with heavy line and two big batteries, for half acre yards with weedy edges. Good value if you already use Worx batteries.
Amazon $229.99$229.99
The Worx Nitro WG185 40V 15 in rates 3.7 among battery string trimmers; the STIHL FS 38 rates 3.3 among gas ones. The STIHL FS 38 costs $10 less ($219.99 vs $229.99).
STIHL FS 38
#13 in GasFull review
A small, light gas trimmer for tidying the edges of a typical suburban lot. Buyers with thick weeds or long fence lines should look at a straight shaft model.
STIHL $219.99$219.99
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.
Scores side by side
These two sit in different power source classes (battery and gas), and each is scored against the reference points for its own class, so a rating says how well each does among its own power source peers. How we rank explains each factor.
| Factor weight | Worx Nitro WG185 40V 15 in | STIHL FS 38 |
|---|---|---|
| Overall rating | 3.7/5 | 3.3/5 |
| Value 30% | 41 $15.33 per inch of swath ($229.99 with batteries and charger, 15 in swath) | 63 $14.67 per inch of swath ($219.99, 15 in swath) |
| Line 20% | 100 .095 in line | 50 line size not published (neutral score used) |
| Swath 15% | 80 15 in swath | 25 15 in swath |
| Weight 15% | 63 9.2 lb (with battery) | 95 9.3 lb (dry) |
| Warranty 20% | 50 3-year warranty | 25 2-year warranty |
Specifications
| Worx Nitro WG185 40V 15 in | STIHL FS 38 | |
|---|---|---|
| Cutting | ||
| Cutting swath | 15 in | 15 in |
| Largest line | .095 in | - |
| Line feed | Bump feed | Bump feed |
| Shaft | Straight | Curved |
| Converts to edger | No | No |
| Takes attachments | No | No |
| Power | ||
| Engine or battery | 40 V, 8 Ah of battery | 27.2 cc, 2-stroke |
| Battery energy | 160 Wh | - |
| Battery included | Yes | - |
| Brushless motor | Yes | - |
| Variable speed | Yes | - |
| Build | ||
| Weight | 9.2 lb (with battery) | 9.3 lb (dry) |
| Warranty | 3 years | 2 years |