BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. vs Ryobi One P505 18V Lithium Ion Cordless 5 1/2"
Updated July 2026 — BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. wins on battery and price, Ryobi One P505 18V Lithium Ion Cordless 5 1/2" wins on rpm and weight.
The BLACK+DECKER offers more features and includes a battery, while the Ryobi is more affordable and has a higher RPM. Choose based on your budget and needs.
Why BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. is better
Battery Included
BLACK+DECKER comes with a battery and charger.
Tool-Free Adjustments
BLACK+DECKER allows tool-free depth and blade changes.
Brand Trust
BLACK+DECKER is a trusted brand for DIY enthusiasts.
Why Ryobi One P505 18V Lithium Ion Cordless 5 1/2" is better
Price
Ryobi is significantly cheaper at $44.89.
RPM
Ryobi has a higher speed of 4,700 RPM.
Bevel Angle
Ryobi allows bevel adjustments up to 50 degrees.
Overall score
Specifications
| Spec | BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. | Ryobi One P505 18V Lithium Ion Cordless 5 1/2" |
|---|---|---|
| Blade Size | 5-1/2 in. | 5-1/2 in. |
| Included Battery | Yes | No |
| Max Bevel | 45 degrees | 50 degrees |
| Weight | Lightweight | Lightweight |
| Speed | N/A | 4,700 RPM |
Dimension comparison
Price Comparison
When comparing the BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. Cordless Circular Saw and the Ryobi One P505, the Ryobi model is significantly more affordable. With a price of $44.89, it is approximately 53% cheaper than the BLACK+DECKER, which retails for $95.00. This substantial price difference could be a decisive factor for budget-conscious consumers. However, the BLACK+DECKER includes a battery and charger, which adds value to its higher price. Therefore, potential buyers should weigh the upfront cost against the additional features provided by the BLACK+DECKER.
Performance and Power
In terms of power and performance, the Ryobi One P505 boasts a speed of 4,700 revolutions per minute, making it capable of handling various cutting tasks with ease. While the BLACK+DECKER does not specify its RPM, it is designed with a fast-cutting 5-1/2 inch blade, which is ideal for a range of DIY tasks. The performance of both saws positions them well for home projects, but the Ryobi's higher RPM suggests a potential for faster cutting in suitable materials. This performance edge may appeal to users who prioritize speed in their work.
Features and Usability
The BLACK+DECKER offers several user-friendly features, including tool-free depth adjustment and blade changes, which can save time during projects. It also includes a pivoting shoe for enhanced control. On the other hand, the Ryobi One P505 features a GRIPZONE overmold for improved handling and a transparent lower guard, which allows for better visibility while cutting. Both saws provide adjustable bevels, with the BLACK+DECKER allowing for angles up to 45 degrees and the Ryobi up to 50 degrees. This slight edge in bevel capability may be beneficial for users who frequently make angled cuts.
Portability and Design
Both circular saws excel in portability, but they do so in different ways. The BLACK+DECKER is part of the POWERCONNECT battery system, allowing users to interchange batteries with other tools from the same line. This compatibility can be a major advantage for those who own multiple BLACK+DECKER tools. Conversely, the Ryobi One P505 is compatible with various Ryobi 18V batteries, but these must be purchased separately, as the saw does not include a battery. The design of both tools emphasizes ease of use, but the BLACK+DECKER's included battery may enhance overall convenience for users looking to avoid extra purchases.
Brand Reputation
BLACK+DECKER and Ryobi are both well-respected brands in the power tool industry, but they cater to slightly different market segments. BLACK+DECKER is often seen as a go-to brand for DIY enthusiasts and homeowners, while Ryobi has a strong following among both DIYers and professionals, particularly for their One+ battery system. The Ryobi One P505 has a better sales rank, sitting at 18,485 compared to the BLACK+DECKER's rank of 122,423. This suggests that the Ryobi may be more popular among consumers, which could indicate a higher level of user satisfaction and trust.
Battery and Charging
A key differentiator between these two products is their battery situation. The BLACK+DECKER comes complete with a 20V MAX POWERCONNECT battery and charger, making it ready to use right out of the box. This is a significant advantage for first-time buyers or those who do not already have compatible batteries. In contrast, the Ryobi One P505 does not include a battery, which means users must invest in one if they do not already possess a compatible Ryobi battery. This additional cost can deter potential buyers looking for a comprehensive package.
Cutting Versatility
Both circular saws offer versatility in cutting applications, but they approach this from different angles. The BLACK+DECKER's bevel detents at 45 and 90 degrees provide solid options for angled cuts, making it suitable for a range of projects. The Ryobi One P505 enhances its versatility further with an adjustable bevel that can reach up to 50 degrees, allowing for even more cutting angles. This feature may appeal to users who regularly work on different cutting applications. However, both saws are designed with DIY tasks in mind, catering to a similar audience with their respective design choices.
Which should you buy?
Choosing between the BLACK+DECKER 20V MAX POWERCONNECT 5-1/2 in. Cordless Circular Saw and the Ryobi One P505 ultimately depends on your specific needs and budget. If you are looking for a complete package that includes a battery and charger and values features like tool-free adjustments, the BLACK+DECKER may be the better option. However, if you are budget-conscious and already have Ryobi batteries or plan to invest in them, the Ryobi One P505 offers a compelling combination of performance and affordability. With a significant price gap, consider your current tool inventory and project requirements before making a decision.

