
Buying a cordless circular saw used to mean accepting a serious power compromise. That is no longer true. Modern brushless saws rip framing lumber and slice sheet goods all day on a single battery, so the real question is which saw fits your hands, your batteries, and your work. This guide covers Best Overall for most buyers, Best Budget Pick for occasional DIY, Best Compact Saw for tight spaces, Most Powerful for corded-level muscle, and Best for Milwaukee M18 Owners for red-tool loyalists. The DEWALT DCS570B kept rising to the top of every comparison we ran, and the detailed reviews below explain exactly why.
| Product | Cutting Power | Portability | Runtime | Value | |
|---|---|---|---|---|---|
![]() Best Budget PickRyobi P505 18V 5-1/2 in. Circular Saw | 6.5 | 8.5 | 6.5 | 9.5 | See PriceAmazon |
![]() Best Compact SawDEWALT ATOMIC 20V MAX 4-1/2 in. Circular Saw (DCS571B) | 7.0 | 9.5 | 7.5 | 8.0 | See PriceAmazon |
![]() | 10.0 | 6.5 | 8.0 | 7.5 | See PriceAmazon |
![]() Best for Milwaukee M18 OwnersMilwaukee M18 Brushless 7-1/4 in. Circular Saw | 9.0 | 7.0 | 8.5 | 7.5 | See PriceAmazon |
![]() | 9.5 | 7.5 | 9.0 | 8.0 | See PriceAmazon |

This is the saw for the homeowner who cuts shelving, trims deck boards, or breaks down the occasional sheet of plywood. If you already own Ryobi 18V batteries, the $42.99 bare-tool price is almost impossible to argue with. You would regret buying the FLEXVOLT instead, since you would pay four times more for power your projects will never demand.
I keep coming back to the value math on this one. At $42.99 it costs less than a single replacement blade for some pro saws, yet it spins at 4,700 RPM and carries a 4.6 star average across 3,550 ratings. The clear lower guard is a thoughtful touch I wish more saws copied, because seeing the cut line matters more than an extra 500 RPM for casual users. Compared to the DEWALT DCS570B, it gives up real cut depth and brushless efficiency, but for trim and sheet goods it asks so little and delivers so much. The extra side handle genuinely steadies freehand cuts, which is where budget saws usually feel sketchy.
Yes, if you cut a few times a month and already own Ryobi ONE+ batteries. It is not the saw for framing a deck, but for the price of a nice dinner you get a genuinely capable trim and plywood saw. If you need full-depth cuts, step up to the DEWALT DCS570B.

This saw exists for cuts where a 7-1/4 inch saw is a liability: inside cabinets, between studs, overhead, or one-handed on a ladder. If your projects are mostly trim and small crosscuts, the ATOMIC will get grabbed ten times more often than a big saw. Framers cutting rafters all day should ignore it and buy the DEWALT DCS570B instead.
The engineering here is genuinely clever. A bevel gear drive lets a 4-1/2 inch blade cut 2x material at 90 degrees, which sounds impossible until you see the 2-9/16 inch depth figure in context. It cuts up to 369 linear feet of 3/4 inch OSB on a 5.0Ah battery, so the small blade does not mean small runtime. Compared to the Ryobi P505, it costs three times more but feels like a precision instrument next to it, with an electronic blade brake and onboard dust port. The 7,687 ratings at 4.7 stars tell me contractors actually trust this thing, not just DIYers.
Yes, if your work is trim, punch-list cuts, or anything overhead. It will not replace a full-size saw for framing, so pair it with the DEWALT DCS570B if you do both. As a second saw, it earns its keep fast.

This is for the pro or serious DIYer who has felt a 20V saw bog down in a wet pressure-treated beam and never wants that feeling again. The 60V FLEXVOLT platform delivers corded-adjacent power, 5,800 RPM with 2,456 unit watts out. If your cutting is mostly pine 2x4s and plywood, you will not notice the difference over the DEWALT DCS570B, and your arms and wallet will thank you for choosing the lighter saw.
Numbers do not lie: 5,800 RPM and 47 percent more power than its already strong predecessor. This is the saw that finally ends the corded-versus-cordless debate for most job site work. The 2-9/16 inch cut depth and 57-degree bevel capacity match the best 20V saws, so you lose nothing in versatility while gaining real authority in dense material. Compared to the DEWALT DCS570B, it is noticeably heavier and the FLEXVOLT batteries cost real money, which is why it is the power pick rather than the overall pick. But when the cut gets hard, nothing else in this guide keeps its nerve like this saw.
Yes, if you regularly cut hardwoods, LVL, or thick pressure-treated lumber and hate waiting on a cord. For standard framing and DIY, the DEWALT DCS570B delivers 90 percent of the experience for less money and weight. Buy the FLEXVOLT when power is the job.

Battery platform loyalty is real, and if your truck is full of red tools, this is your saw. It gives M18 owners a full-size 7-1/4 inch brushless option without buying into a second battery system. DEWALT loyalists should stick with the DEWALT DCS570B, which is cheaper and has deeper review history, but Milwaukee owners lose nothing meaningful by staying red.
Milwaukee built this one for people who actually frame houses. Magnesium upper and lower guards survive drops that would crack plastic, the LED light keeps the cut line visible in dim framing, and the electric brake stops the blade the instant you release the trigger. It runs on the M18 batteries you already own, which is the entire point. Against the DEWALT DCS570B, it gives up a little on documented runtime figures and costs about the same, but the build details, rafter hook, integrated dust port, and magnesium guards, feel a half-step more jobsite-serious.
Yes, without hesitation, if you own M18 batteries. It is the only full-size brushless option in this guide on the red platform, and it is a strong saw on its merits. If you are platform-agnostic, the DEWALT DCS570B is cheaper and better documented.

This is the saw for anyone who wants to stop thinking about their circular saw. Framing, ripping plywood, demo work, deck building: the full-size 7-1/4 inch blade and brushless motor cover all of it without drama. If you already own DEWALT 20V batteries, the decision is nearly automatic. You would regret the Ryobi P505 if your projects ever grow past occasional trim work, and you would regret the DEWALT ATOMIC the first time you need to rip a full sheet.
I have a simple test for an overall pick: which saw would I hand to a friend who asks for one recommendation? The DCS570B wins because it refuses to compromise where it matters. The brushless motor holds 5,500 RPM under load instead of bogging, the 7-1/4 inch blade delivers a true 2-9/16 inch cut depth, and 330 crosscuts per charge in 2x4 pine means the battery is never the limiting factor. Compared to the FLEXVOLT 60V saw, it is lighter, cheaper to feed, and runs on the 20V batteries half of America already owns. The 5,573 ratings at 4.7 stars are not an accident. This is the cordless saw that made corded saws optional.
Yes. If you are buying one cordless circular saw and you own, or plan to own, DEWALT 20V batteries, this is the one. Only consider the FLEXVOLT if you routinely cut the hardest materials, or the Ryobi P505 if your saw will live in a garage and come out twice a year.
For most framing, ripping, and demo work, yes. A brushless 7-1/4 inch saw like the DEWALT DCS570B holds 5,500 RPM under load and delivers 330 crosscuts per charge, which covers a full day for many users. Corded saws still win for all-day production ripping where you never want to swap batteries.
Yes. A 6-1/2 inch blade cuts 2-1/8 inches deep at 90 degrees, which clears a 2x4 (1-1/2 inches actual) with room to spare. Even the compact 4-1/2 inch DEWALT ATOMIC manages 2x material at 90 degrees thanks to its bevel gear design.
A bare tool is the smart buy if you already own batteries and a charger on that platform, since you skip paying for duplicates. If you own nothing yet, the kit version, like the DEWALT DCS391P1 honorable mention with its 5.0Ah battery and charger, is cheaper than buying the tool and power source separately.
It depends on the saw, the battery size, and what you are cutting. Expect a few hundred crosscuts in 2x4 pine from a 5.0Ah pack on an efficient brushless saw. Keep a second battery on the charger for big jobs, and retire dull blades promptly, since a dull blade drains batteries far faster than a sharp one.
The same proven 5,150 RPM saw as the DCS391B workhorse, bundled with a 5.0Ah battery and charger. The sensible one-box purchase if you own no DEWALT batteries yet.
See PriceAmazonWeighs just 7.3 pounds with a battery and carries a 4.7 star average across 2,427 ratings. A great pick for finish work and anyone sensitive to saw weight.
See PriceAmazonOver 11,000 ratings at 4.6 stars make this the most battle-tested saw in the lineup. Brushed motor, but a legendary track record on job sites.
See PriceAmazon
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