BLACK+DECKER MATRIX Trim Saw Attachment with 3-3/ vs Ryobi One P505 18V Lithium Ion Cordless 5 1/2"
Updated July 2026 — Ryobi One P505 18V Lithium Ion Cordless 5 1/2" leads on portability and features.
The Ryobi One P505 offers more power and features at a lower price, making it the better choice for most users.
Why BLACK+DECKER MATRIX Trim Saw Attachment with 3-3/ is better
Price
BLACK+DECKER is $52.00, while Ryobi is $44.89.
Weight
BLACK+DECKER is lightweight and compact.
Compatibility
BLACK+DECKER is compatible with Matrix tools.
Why Ryobi One P505 18V Lithium Ion Cordless 5 1/2" is better
Power
Ryobi has a max RPM of 4,700.
Features
Ryobi includes adjustable bevel and extra handle.
Portability
Ryobi is cordless and more portable.
Overall score
Specifications
| Spec | BLACK+DECKER MATRIX Trim Saw Attachment with 3-3/ | Ryobi One P505 18V Lithium Ion Cordless 5 1/2" |
|---|---|---|
| RPM | 3400 | 4700 |
| Price | $52.00 | $44.89 |
| Bevel | N/A | 50 degrees |
| Weight | Light | Moderate |
| Battery | N/A | 18V Lithium Ion |
Dimension comparison
Overview
When comparing the BLACK+DECKER MATRIX Trim Saw Attachment with the Ryobi One P505 Cordless Circular Saw, it's clear that each product caters to different user needs. BLACK+DECKER's offering is designed as an attachment for its Matrix line, while Ryobi presents a standalone cordless saw. The BLACK+DECKER is priced at $52.00, whereas the Ryobi is slightly cheaper at $44.89, making it about 17% less expensive.
Design and Build Quality
The BLACK+DECKER MATRIX Trim Saw Attachment features a lightweight and compact design that enhances comfort and control during use. This design is particularly beneficial for users who prioritize maneuverability. In contrast, the Ryobi One P505 boasts a robust design with a GRIPZONE OVERMOLD on the handles, providing improved handling in various conditions. While the BLACK+DECKER is an attachment that requires a compatible base tool, the Ryobi is a standalone unit that can be operated independently, catering to users who may not own the Matrix system.
Performance
Performance-wise, the BLACK+DECKER MATRIX Trim Saw Attachment can reach RPMs of up to 3,400 when paired with a 20V MAX tool, making it suitable for cutting plywood, paneling, and fence boards. However, the Ryobi One P505 outshines with a maximum speed of 4,700 RPM, offering power comparable to corded saws while maintaining cordless convenience. This performance difference means that the Ryobi is likely to handle tougher cutting tasks more effectively.
Features
Both products come with unique features tailored to enhance user experience. The BLACK+DECKER attachment includes a spindle lock button for easy bit changes and is compatible with the MATRIX tool system. On the other hand, the Ryobi One P505 offers a transparent lower guard for better visibility during cuts and an adjustable bevel of up to 50 degrees, allowing users to make angled cuts for diverse applications. Additionally, Ryobi's extra side handle provides improved control, which can be crucial during precision cuts.
Portability
Portability is a significant advantage of the Ryobi One P505, as it operates on 18V lithium-ion batteries. This cordless feature allows users to move freely without the constraints of a power cord, making it ideal for outdoor projects or locations without easy access to electricity. In contrast, the BLACK+DECKER MATRIX Trim Saw Attachment requires a compatible tool from the Matrix system, which may limit its portability for users who do not already own such a base tool.
User Experience
User experience can vary greatly between the two products. The BLACK+DECKER MATRIX offers a comfortable grip and lightweight design that many users find appealing for extended use. However, the Ryobi One P505 is designed with added features that promote better handling and visibility, enhancing overall user experience during cutting tasks. The popularity of the Ryobi, with a sales rank of 18,485 compared to BLACK+DECKER's rank of 117,056, suggests that more users favor the Ryobi for its performance and ease of use.
Price Comparison
In terms of pricing, the BLACK+DECKER MATRIX Trim Saw Attachment is set at $52.00, while the Ryobi One P505 is available for $44.89. This makes the Ryobi about 17% cheaper, which can be a significant factor for budget-conscious consumers. However, it's essential to consider the value each product provides in relation to its price point. The Ryobi, with its higher RPM and additional features, may justify its cost for those looking for a reliable, versatile tool.
Which should you buy?
Choosing between the BLACK+DECKER MATRIX Trim Saw Attachment and the Ryobi One P505 ultimately depends on your specific needs and preferences. If you're looking for a lightweight attachment for the BLACK+DECKER Matrix system and already own compatible tools, the MATRIX may be the right choice for you. However, if you want a powerful, standalone cordless circular saw with multiple features for versatility and improved handling, the Ryobi One P505 stands out as the better option. Its lower price point, higher RPM, and user-friendly features make it an excellent value for both DIY enthusiasts and professionals.

