DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit vs Ryobi P506 One+ Lithium Ion 18V 5 1/
Updated July 2026 — DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit wins on battery and power, Ryobi P506 One+ Lithium Ion 18V 5 1/ wins on price and weight.
The DEWALT 20V MAX Circular Saw offers superior performance and included battery, making it the better choice for demanding tasks. The Ryobi P506 is a budget-friendly option for lighter use.
Why DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit is better
Power
DEWALT has a higher rpm motor at 5150 compared to Ryobi's 4700.
Included Battery
DEWALT includes a 5.0-Ah battery and charger.
Build Quality
DEWALT features a magnesium shoe for durability.
Why Ryobi P506 One+ Lithium Ion 18V 5 1/ is better
Price
Ryobi is significantly cheaper at $69.
Weight
Ryobi is designed for portability and lighter tasks.
Laser Guide
Ryobi includes an integrated laser guide for precision.
Overall score
Specifications
| Spec | DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit | Ryobi P506 One+ Lithium Ion 18V 5 1/ |
|---|---|---|
| Motor RPM | 5150 | 4700 |
| Blade Size | 6-1/2 inch | 5-1/2 inch |
| Bevel Capacity | 0-50 degrees | 0-50 degrees |
| Included Battery | Yes | No |
| Laser Guide | No | Yes |
Dimension comparison
Overview of the DEWALT 20V MAX Circular Saw Kit
The DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit is a powerful option designed for demanding cuts, featuring a 5,150 rpm motor and a 6-1/2-inch carbide-tipped blade. This saw is priced at $247.12 and includes a 5.0-Ah battery and charger, making it ready for use straight out of the box. In contrast, the Ryobi P506 One+ 18V Circular Saw, priced at $69.00, offers a lower rpm of 4,700 and is compatible with the RYOBI ONE+ battery system but does not include a battery in its package.
Performance Comparison
The DEWALT saw excels in performance with its robust 5,150 rpm motor, which delivers power for even the most challenging cuts. Its 6-1/2-inch blade allows for cutting through thicker materials with ease. The Ryobi P506, while having a respectable 4,700 rpm, is positioned more as a lightweight option for less demanding tasks. The difference in motor power may be crucial for professionals or serious DIYers who require reliable performance under tough conditions.
Design and Build Quality
In terms of design, the DEWALT saw features a high-strength magnesium shoe that offers both durability and long-term cut accuracy. This makes it suitable for heavy job-site use. The Ryobi P506 emphasizes user comfort with its GRIPZONE overmold, providing a secure grip during operation. However, the overall build quality of DEWALT's magnesium shoe may provide an edge in terms of longevity and durability, especially in rugged conditions.
Cutting Capacity and Versatility
The DEWALT Circular Saw boasts a 0 to 50-degree bevel capacity, allowing for a wide range of aggressive bevel cuts. This flexibility makes it a versatile choice for various applications. The Ryobi P506 also features a 50-degree bevel capacity, complemented by an integrated laser guide for enhanced cutline visibility. While both saws offer similar bevel capacities, the additional motor power of the DEWALT saw may allow for more effective cutting of diverse materials.
Weight and Portability
The DEWALT saw is designed to be lightweight, which aids in its portability and ease of use on job sites. However, the exact weight is not specified in the data. The Ryobi P506 is also designed for portability, fitting into the RYOBI ONE+ system. Given its lower price and lighter specifications, the Ryobi might appeal more to casual users or those who prioritize weight over power.
Battery and Power Source
A significant difference between the two products lies in their battery inclusion. The DEWALT 20V MAX Circular Saw comes with a 5.0-Ah battery and charger, enabling immediate usage upon purchase. In contrast, the Ryobi P506 does not include a battery, requiring users to invest in a compatible RYOBI battery separately. This cost difference could lead to a total investment of about $100 or more when considering the cost of a battery for the Ryobi, making the DEWALT option more convenient for users who need a complete kit.
Price and Value
The DEWALT Circular Saw is priced at $247.12, while the Ryobi P506 is significantly cheaper at $69.00, making it about 72% less expensive. This price difference reflects the DEWALT's higher-end features and included battery, which offer greater overall value for professionals or serious DIY enthusiasts. However, for casual users or those on a budget, the Ryobi P506 might represent a more sensible investment, provided they already possess compatible batteries.
Which should you buy?
In conclusion, your choice between the DEWALT 20V MAX 6-1/2-Inch Circular Saw Kit and the Ryobi P506 One+ 18V Circular Saw should depend on your specific needs. If you require a powerful saw with high performance, durability, and the convenience of an included battery, the DEWALT is the better option. However, if you are looking for a more affordable and lighter tool for less demanding tasks, the Ryobi P506 could suffice, especially if you already own RYOBI batteries.

