DeWalt
DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw
$169
Released 2017
Best Circular Saws · head-to-head
DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw vs Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw
A sourced, side-by-side comparison. Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw is cheaper at $119. Every spec and price links to its source.
Ryobi
Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw
$119Cheaper
Which is better: the DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw or Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw?
On the specs we track, they're closely matched. The Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw is the cheaper at $119.
See DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw on Amazon See Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw | Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw |
|---|---|---|
| US price | $169 | $119 |
| Brand | DeWalt | Ryobi |
| Released | 2017 | — |
| Power source | cordless | cordless |
| Blade size (in) | 7-1/4 in | 7-1/4 in |
| Voltage or amps | 20 V | 18 V |
| Max (rpm) | 5200 | 3800 |
| Bevel capacity (°) | 57 deg | 56 deg |
| Brushless | Yes | Yes |
| Weight (lb) | 7.3 lb | 6.6 lb |
| Release | 2017 | — |
Sources — DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw: dewalt.com (verified 2026-06-20). Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw: homedepot.com (verified 2026-06-20).
What's the difference between the DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw and Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Voltage or amps: DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw 20 V vs Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw 18 V
- Max (rpm): DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw 5200 vs Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw 3800
- Bevel capacity (°): DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw 57 deg vs Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw 56 deg
- Weight (lb): DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw 7.3 lb vs Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw 6.6 lb
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw
One whitelisted hands-on source (Pro Tool Reviews, 8.1/10) was verified for this exact saw (the review's spec table names Model DCS570B, the bare tool). Over several weeks of cutting plywood, rough lumber, PT and MDF, the reviewer calls the DCS570 a legitimate corded-sidewinder replacement with smooth bevel detents and a fast electronic blade brake, and standout value, while flagging the push-in trigger safety and the absent rafter hook. (1 sourced review, 1 lab-tested.)
Praised: Legitimate corded-sidewinder replacement; keeps pace cutting 3/4-inch plywood and rough 2x6 lumber; Smooth depth and bevel adjustments with 22.5 and 45 degree bevel detents; Fast electronic blade brake and comfortable contoured handle with offset pommel.
Flagged: Push-in trigger safety; reviewer prefers a push-down style; No rafter or belt hook; Runtime limited versus corded (need to cycle two batteries on the charger).
Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw
Only one whitelisted source covers the exact P508: a 2017 pre-launch preview from Pro Tool Reviews, not a hands-on lab test, so no measured results exist. It praises the brushless motor and 26% larger 7-1/4-inch cut capacity as clear upgrades, but flags the doubled price and still-missing rafter hook. (1 sourced review.)
Praised: Brushless motor upgrade for longer runtime, more power, and longer motor life; 26% larger cut capacity from the full-size 7-1/4-inch blade (up from 6-1/2-inch); LED cut-line light, dust blower, and left-mount blade improve cut-line visibility.
Flagged: Price roughly doubles that of the previous P507 model; Still lacks a rafter hook; Left-mount blade is less convenient for left-handed users.