Stihl MS500i vs MS661

Choosing a high end Stihl chainsaw can be a complicated decision with multiple factors to weigh up. Here is a brief and simplified comparison summary.

Emissions:
MS500i - More
MS661 - Less

Fuel Consumption:
MS500i - Less (due to fuel injection)
​MS661 - More

Size:
MS500i - More Compact
​MS661 - Larger, Heavier

Kilowatts:
MS500i - 5.0kW
​MS661 - 5.4kW

Power:
MS500i - Less Powerful
​MS661 - More Powerful

Smart Technology:
MS500i -  Both - the 500i has superior technology compared to the 661
​MS661 - Both - the 661 can adjust itself to run efficiently

Price:
MS500i - $2469 (3/8P w/ 25" ES Light Bar)
​MS661 - $2539 (3/8P w/ 25" ES Light Bar)

What to choose?
MS500i - Choose the MS500i if you’re after a smarter and lighter saw that still packs a punch (not as powerful as the MS661)
​MS661 - Choose the MS661 for superior power

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