Greenworks 80V 18 in Chainsaw
#4 in BatteryFull review
For heavier firewood cutting on the Greenworks 80V platform, with long runtime per charge.
Amazon $408.49$408.49
The Greenworks 80V 18 in Chainsaw rates 3.8 among battery chainsaws; the STIHL MS 251 Wood Boss rates 3.0 among gas ones. The STIHL MS 251 Wood Boss costs $8.50 less ($399.99 vs $408.49).
STIHL MS 251 Wood Boss
#18 in GasFull review
A fuel efficient 18 in STIHL for homeowners who cut a few cords a year and want dealer support.
STIHL $399.99$399.99
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 | Greenworks 80V 18 in Chainsaw | STIHL MS 251 Wood Boss |
|---|---|---|
| Overall rating | 3.8/5 | 3.0/5 |
| Value 30% | 25 $22.69 per inch of bar ($408.49 with battery and charger, 18 in bar) | 42 $22.22 per inch of bar ($399.99, 18 in bar) |
| Power 25% | 89 65.6 ft/s chain speed | 42 45.6 cc engine |
| Weight 15% | 81 9.5 lb | 77 10.6 lb (powerhead) |
| Bar 10% | 75 18 in bar | 75 18 in bar |
| Warranty 20% | 75 4-year warranty | 0 1-year warranty |
Specifications
| Greenworks 80V 18 in Chainsaw | STIHL MS 251 Wood Boss | |
|---|---|---|
| Cutting | ||
| Bar length | 18 in | 18 in |
| Chain speed | 65.6 ft/s | - |
| Chain pitch | 3/8 in | .325 in (RM3) |
| Automatic oiler | Yes | - |
| Tool-free chain tension | Yes | - |
| Power | ||
| Engine or battery | 80 V, 4 Ah battery | 45.6 cc, 3 hp |
| Battery energy | 320 Wh | - |
| Battery included | Yes | - |
| Brushless motor | Yes | - |
| Build | ||
| Weight | 9.5 lb | 10.6 lb (powerhead) |
| Anti-vibration | - | Yes |
| Warranty | 4 years | 1 year |
| Battery warranty | 4 years | - |