FLEX 24V Brushless Cordless 6-1/2-Inch In-Line vs Ryobi P506 One+ Lithium Ion 18V 5 1/
Updated July 2026 — FLEX 24V Brushless Cordless 6-1/2-Inch In-Line leads on rpm and battery voltage.
The FLEX saw offers superior performance and features for demanding tasks, while the Ryobi is a budget-friendly option for lighter applications.
Why FLEX 24V Brushless Cordless 6-1/2-Inch In-Line is better
Cutting Capacity
FLEX can cut 3x lumber in one pass, Ryobi cannot.
Warranty
FLEX offers a 5-year warranty, Ryobi does not specify.
Power
FLEX has a sensor-free brushless motor for higher efficiency.
Why Ryobi P506 One+ Lithium Ion 18V 5 1/ is better
Price
Ryobi is significantly cheaper at $69.
Weight
Ryobi is lighter and easier to handle for casual users.
Battery Compatibility
Ryobi works with all RYOBI 18V ONE+ batteries.
Overall score
Specifications
| Spec | FLEX 24V Brushless Cordless 6-1/2-Inch In-Line | Ryobi P506 One+ Lithium Ion 18V 5 1/ |
|---|---|---|
| Motor Type | Brushless | Brushed |
| Laser Guide | No | Yes |
| Runtime | Longer | Shorter |
| Charging Speed | Faster | Standard |
| Bevel Capacity | N/A | 50 degrees |
Dimension comparison
Overview of FLEX 24V Brushless Cordless Circular Saw
The FLEX 24V Brushless Cordless 6-1/2-Inch In-Line Circular Saw is priced at $177.66, offering advanced features for professional use. This saw stands out with its unique in-line design, providing superior balance and visibility during cuts. With a cutting capacity that allows it to slice through 3x lumber in a single pass, it is tailored for heavy-duty applications. The FLEX saw is also backed by a 5-year limited warranty when registered, ensuring long-term reliability for users.
Overview of Ryobi P506 One+ Circular Saw
The Ryobi P506 One+ Lithium Ion 18V Circular Saw is significantly cheaper at $69.00, making it a budget-friendly option. Despite its lower price, this saw offers a robust 4,700 RPM performance and an integrated laser guide for precision cutting. Designed for lighter tasks, it features a 5-1/2 inch blade that delivers a 1-9/16 inch depth of cut. Being part of the RYOBI ONE+ system, it is compatible with all 18V batteries, providing versatility for existing RYOBI tool owners.
Performance Comparison
The FLEX saw boasts a sensor-free brushless motor, which enhances efficiency and power, making it ideal for demanding tasks. It claims to provide 20% more power and 25% longer runtime than comparable tools, making it suitable for serious woodworking projects. In contrast, the Ryobi saw, while powerful at 4,700 RPM, is designed for lighter applications and may not withstand heavy-duty use as effectively as the FLEX. The depth of cut offered by the FLEX saw is 2-9/16 inches, which is superior to the Ryobi's 1-9/16 inches, indicating that the FLEX is better equipped for more substantial materials.
Cutting Capacity and Versatility
The FLEX circular saw has a maximum cutting capacity that allows it to cut through 3x lumber in one go. This capability is particularly beneficial for contractors and serious DIYers who need reliable performance in tougher materials. Its in-line design not only provides balance but also enhances visibility, making it easier to execute precise cuts. On the other hand, the Ryobi saw, while versatile within its limitations, is primarily suited for lighter cuts. It offers a 50-degree bevel cut capacity, which gives it some versatility for angled cuts, but it does not match the overall cutting prowess of the FLEX.
Battery and Charging System
The FLEX saw operates on a 24V lithium battery, which is noted for its fast charging capabilities, claiming up to 50% quicker charging times. This is particularly advantageous for users who need to minimize downtime. However, the battery and charger are sold separately, which adds to the initial investment. Conversely, the Ryobi P506 One+ is compatible with the extensive RYOBI 18V battery system, making it an attractive choice for those who already own RYOBI tools. Its affordability, combined with compatibility with existing batteries, makes it appealing to casual users.
Build Quality and Warranty
FLEX emphasizes build quality with a 5-year limited warranty when the tool is registered, instilling confidence in its durability and performance. This warranty reflects the brand's commitment to customer satisfaction and product reliability. Ryobi, while providing a solid product, does not specify a warranty duration in the provided data, which may leave some users concerned about long-term support. The build quality of the FLEX tool is designed for rigorous use, while the Ryobi saw is intended for lighter, more casual applications.
User Experience and Comfort
Both saws prioritize user comfort, but they do so in different ways. The FLEX circular saw features an ergonomic design that allows for better handling and control, enhancing the overall user experience during extended use. It also includes a built-in LED light to illuminate the workpiece, which adds to its precision. The Ryobi P506, meanwhile, incorporates GRIPZONE overmold technology for optimal comfort in handling, making it suitable for users who may not require the higher-end features of the FLEX. However, the lack of additional features may impact the overall user experience for those who seek more advanced functionalities.
Which should you buy?
Choosing between the FLEX 24V Brushless Cordless Circular Saw and the Ryobi P506 One+ Circular Saw ultimately depends on your specific needs and budget. If you are a professional or a serious DIYer looking for high performance, superior cutting capacity, and a longer warranty, the FLEX saw at $177.66 is a worthy investment. It delivers impressive power and runtime that can handle more demanding tasks. On the other hand, if you are a casual user or someone who prioritizes cost-effectiveness, the Ryobi P506, priced at $69.00, offers solid performance for lighter applications and compatibility with the RYOBI ONE+ battery system. Each tool has its strengths, so consider what features align best with your projects before making a decision.

