Ryobi P506 One+ Lithium Ion 18V 5 1/ vs SKIL 20V Brushless 6-1/2In. Cordless Compact
Updated July 2026 — Ryobi P506 One+ Lithium Ion 18V 5 1/ wins on value, SKIL 20V Brushless 6-1/2In. Cordless Compact wins on safety and battery life.
The SKIL 20V circular saw offers superior performance and features compared to the Ryobi P506, making it the better choice for serious wood cutting tasks.
Why Ryobi P506 One+ Lithium Ion 18V 5 1/ is better
Lower Price
Ryobi is $10 cheaper than SKIL
Basic Use
Adequate for basic wood cutting tasks
Brand Loyalty
RYOBI has a strong following among DIY enthusiasts
Why SKIL 20V Brushless 6-1/2In. Cordless Compact is better
Higher RPM
SKIL delivers up to 5,500 RPM
Better Battery
SKIL's battery technology offers longer runtime
Safety Features
SKIL includes an electric brake for added safety
Overall score
Specifications
| Spec | Ryobi P506 One+ Lithium Ion 18V 5 1/ | SKIL 20V Brushless 6-1/2In. Cordless Compact |
|---|---|---|
| Max RPM | 4,700 | 5,500 |
| Blade Size | 5-1/2 in | 6-1/2 in |
| Battery | 18V | 20V |
| Weight | 6.5 lbs | 6.0 lbs |
| Cuts per Charge | N/A | 105 cuts |
Dimension comparison
Overview of Ryobi P506 and SKIL 20V Circular Saws
The Ryobi P506 and SKIL 20V circular saws are two strong contenders for anyone looking for a reliable cordless cutting tool. The Ryobi is priced at $69.00, while the SKIL is available for $79.00, making the Ryobi about 13% cheaper. Both saws are designed to tackle wood cutting tasks efficiently, but they differ in features and performance that may influence your decision.
Power and Performance
When it comes to power, the SKIL 20V circular saw outshines the Ryobi with its brushless motor that delivers up to 5,500 RPM. This higher RPM allows for faster cutting through materials, making it suitable for more demanding projects. In contrast, the Ryobi P506 offers a maximum of 4,700 RPM. While the Ryobi is still capable, especially for basic wood cutting tasks, the SKIL provides an additional edge in speed and efficiency, making it a better option for users who need to complete extensive cuts quickly.
Design and Ergonomics
Design plays a crucial role in the usability of a circular saw. The SKIL features a compact and ergonomic design, which is particularly beneficial for users who require improved visibility on their cut lines. Its blade-left configuration and integrated LED shadow line make it easier to see the cutting area, enhancing precision. The Ryobi also prioritizes ergonomics with its GRIPZONE overmold for optimal grip and comfort, but it lacks the advanced visibility features of the SKIL. If user comfort and visibility are top priorities, the SKIL may be the more favorable choice.
Blade and Cutting Capacity
In terms of blade size, the Ryobi features a 5-1/2-inch blade, while the SKIL comes with a larger 6-1/2-inch blade. This difference in size allows the SKIL to cut deeper, with 105 cuts in 2x4 pine possible on a single charge with its included battery. The Ryobi, although it can handle angled cuts up to 50 degrees, offers a depth of cut of 1-9/16 inches, which may not satisfy users needing greater cutting capacity. Therefore, for users focused on versatility and deeper cuts, the SKIL offers clear advantages.
Battery and Runtime
Battery life and runtime are critical factors for cordless tools. The SKIL circular saw kit includes a PWR CORE 20 2.0Ah lithium battery, which is designed to provide longer runtime and battery life, with claims of up to 25% longer usage. While the Ryobi is compatible with all 18-Volt ONE+ batteries from the RYOBI lineup, it does not specify any battery runtime improvements. For users who prioritize efficiency in battery life, the SKIL's advanced battery technology may offer significant benefits, particularly for extensive projects.
Safety Features
Safety features can greatly impact user experience and confidence when operating power tools. The SKIL circular saw includes an electric brake that quickly stops the blade between cuts, enhancing safety, particularly for novice users. The Ryobi does not mention any specific safety mechanisms, making it less appealing in this regard. For those concerned about safety, the SKIL’s electric brake could be a deciding factor.
Pricing and Value
The Ryobi P506 is priced at $69.00, while the SKIL 20V circular saw is available for $79.00, giving the Ryobi a $10 advantage. However, considering the features that the SKIL offers—such as a higher RPM, improved battery technology, and enhanced safety features—users may find the added cost of the SKIL justified. In terms of value, if the features align with your cutting needs, investing in the SKIL could offer a better long-term return.
Customer Reception
Both the Ryobi P506 and SKIL 20V circular saws have their own customer bases, with the SKIL ranking higher at 41,452 in sales compared to the Ryobi's 100,142. This suggests that the SKIL may be more popular and well-received among users, potentially due to its performance features and overall design. Customer reception can often reflect the effectiveness of a tool in real-world applications, making the SKIL a more trusted option among consumers.
Which should you buy?
Ultimately, the choice between the Ryobi P506 and SKIL 20V circular saws depends on your specific needs. If you are looking for a more budget-friendly option for basic wood cutting, the Ryobi offers good value at $69.00. However, if you prioritize performance, advanced features, and safety, the SKIL 20V circular saw, priced at $79.00, will likely serve you better in the long run. Consider your project requirements and preferences to make the most informed decision.

