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Ryobi P506 One+ Lithium Ion 18V 5 1/ vs SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight

Updated July 2026 — Ryobi P506 One+ Lithium Ion 18V 5 1/ wins on rpm, SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight wins on price and power.

The SKILSAW SPT77WML-01 outperforms the Ryobi P506 One+ in power and durability, making it the better choice for professionals.

Why Ryobi P506 One+ Lithium Ion 18V 5 1/ is better

Price

Ryobi is significantly cheaper at $69.00.

Weight

Ryobi is more portable and lightweight.

Battery

Cordless design offers flexibility.

Why SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight is better

Power

SKILSAW has a 15 Amp motor for tougher tasks.

Durability

SKILSAW's magnesium housing enhances longevity.

Cutting Range

SKILSAW allows for more complex cuts.

Overall score

Ryobi P506 One+ Lithium Ion 18V 5 1/
65
SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight
85

Specifications

SpecRyobi P506 One+ Lithium Ion 18V 5 1/SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight
Motor18V15 Amp
Blade Size5-1/2 inch7-1/4 inch
Laser GuideYesNo
ConstructionPlasticMagnesium
Corded/CordlessCordlessCorded

Dimension comparison

Ryobi P506 One+ Lithium Ion 18V 5 1/SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight

Price Comparison

When it comes to price, the Ryobi P506 One+ is significantly more budget-friendly than the SKILSAW SPT77WML-01. Priced at $69.00, the Ryobi is about 61% cheaper than the SKILSAW, which retails for $179.00. This price difference of $110 makes the Ryobi a compelling option for those seeking a cost-effective circular saw. The Ryobi's affordability doesn't compromise its functionality, making it an excellent value for DIY enthusiasts and casual users who might not require the more advanced features of the SKILSAW.

Power and Performance

The SKILSAW SPT77WML-01 offers a substantial advantage in power with its 15 Amp motor, allowing it to handle tougher materials and larger projects with ease. In contrast, the Ryobi P506 One+ operates at a lower RPM of 4,700, powered by its 18V battery system. While the Ryobi is suitable for light to moderate tasks, the SKILSAW's robust power makes it ideal for professionals and those who regularly work with dense lumber. The performance gap is evident, with the SKILSAW designed for more demanding applications.

Weight and Portability

For users looking for a lightweight option, the Ryobi P506 One+ is an appealing choice due to its compact design. The SKILSAW SPT77WML-01, although powerful, weighs in at just 11.5 lbs., which is considered light for a worm drive saw, yet still heavier than the Ryobi. This makes the Ryobi a more portable option for those who need to carry their tools to various job sites. The ease of transport can significantly reduce user fatigue during extensive projects, making the Ryobi more suitable for casual users who value mobility.

Cutting Capabilities

The cutting capabilities of the two models differ notably. The Ryobi P506 allows for angled cuts up to 50 degrees, which is beneficial for various applications, although its maximum depth of cut is 1-9/16 inches. The SKILSAW SPT77WML-01, on the other hand, boasts a 53-degree bevel capacity and a more powerful motor, enabling it to tackle a wider range of cuts and materials more efficiently. This makes the SKILSAW a superior choice for users who frequently engage in complex cutting tasks and require versatility.

User Comfort and Handling

User comfort is a critical factor in any power tool, and both the Ryobi and SKILSAW have features aimed at enhancing the user experience. The Ryobi P506 features a GRIPZONE overmold, designed for optimal grip and comfort during use. Meanwhile, the SKILSAW SPT77WML-01’s magnesium construction reduces user fatigue, a significant benefit during prolonged use. The anti-snag lower guard of the SKILSAW further enhances its operational smoothness. Users who prioritize comfort will find both tools cater to this need, but the SKILSAW’s lightweight design may provide a slight edge.

Durability and Build Quality

In terms of durability, the SKILSAW SPT77WML-01 stands out with its rugged magnesium housing, which not only enhances its strength but also keeps the motor cooler during operation. This construction is designed for longevity and repeated heavy use, making it a reliable choice for professionals. The Ryobi P506, while well-built for its category, is more suited to occasional use, and its refurbished condition may raise questions about long-term durability. For heavy-duty applications, the build quality of the SKILSAW will likely prove advantageous.

Battery vs. Corded Power

The Ryobi P506 is a cordless model that operates on the RYOBI 18-Volt ONE+ battery system, which allows for greater flexibility and ease of use without the constraints of power cords. However, users must consider that the battery is sold separately. In contrast, the SKILSAW SPT77WML-01 is a corded model that ensures consistent power without the need for battery management, ideal for extended use on large projects. This fundamental difference in power source is crucial for users to consider based on their specific needs and working environments.

Which should you buy?

Ultimately, choosing between the Ryobi P506 One+ and the SKILSAW SPT77WML-01 depends on your specific requirements and budget. If you're a casual user or a DIY enthusiast looking for an affordable, lightweight, and portable circular saw, the Ryobi at $69.00 is a great option. However, for professionals who demand power, durability, and versatility in their tools, the SKILSAW, despite its higher price of $179.00, offers superior performance and quality. Assess your needs carefully to determine which tool aligns best with your projects.