Unfortunately, we/Oregon still don't have a 120V Professional Series Chain saw, but our 40V cordless version is better then most you'll find at the Home Centers - and they've got our chain. You can see Oregon's Pro Series landscaping tools at www.oregon120V.com and we're introducing a new commercial mower and handheld blower next week at GIE 2019.Oregon seems to be a lot pricier than Greenworks. Can't say if that's generally true, but I looked at 16" chainsaws with 40V / 4 Ah battery & charger on Amazon.
$187 for the Greenworks model,
$350 for the Oregon model
Both use brushless motors. The Oregon model claims to do 400 cuts on a single charge, vs. 100 for the Greenworks.