Ryobi One P505 18V Lithium Ion Cordless 5 1/2" vs SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight
Updated July 2026 — Ryobi One P505 18V Lithium Ion Cordless 5 1/2" wins on rpm and power, SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight wins on sales rank and price.
The SKILSAW SPT77WML-01 offers superior power and build quality, making it the better choice for professionals, while the Ryobi One P505 is ideal for DIY enthusiasts on a budget.
Why Ryobi One P505 18V Lithium Ion Cordless 5 1/2" is better
Price
Ryobi is significantly cheaper at $44.89.
Portability
Ryobi is cordless, enhancing mobility.
User Control
Ryobi has extra side handle for better control.
Why SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight is better
Power
SKILSAW has a 15 Amp motor for heavy-duty tasks.
Build Quality
SKILSAW is made of lightweight magnesium.
Cutting Versatility
SKILSAW offers a 53° bevel for more cutting options.
Overall score
Specifications
| Spec | Ryobi One P505 18V Lithium Ion Cordless 5 1/2" | SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight |
|---|---|---|
| Motor Type | 18V Lithium-Ion | 15 Amp |
| Cut Depth | 5 1/2" | 7 1/4" |
| Grip Type | GripZone Overmold | Anti-Snag Guard |
| Battery Included | No | No |
| Extra Handle | Yes | No |
Dimension comparison
Price Comparison
The Ryobi One P505 is priced at $44.89, making it about 75% cheaper than the SKILSAW SPT77WML-01, which retails for $179.00. This significant price difference reflects the varying target markets for these two circular saws. The Ryobi is designed for DIY enthusiasts and homeowners who may need an occasional power tool for home projects, while the SKILSAW caters to professionals or serious hobbyists who require a more robust and powerful saw for frequent use. The Ryobi's lower price point may appeal to those who are budget-conscious or just starting their tool collection.
Power and Performance
When it comes to power, the SKILSAW SPT77WML-01 outshines the Ryobi One P505 with its 15 Amp motor compared to the Ryobi’s 18V lithium-ion battery. The SKILSAW’s motor provides the strength necessary to rip through more lumber in less time, making it a formidable choice for professional applications. Conversely, the Ryobi, with a speed of 4,700 RPM, offers decent performance for household woodcutting needs, but may not be able to handle heavy-duty tasks as efficiently as the SKILSAW. This distinction makes the SKILSAW a better option for users who prioritize power in their cutting tasks.
Design and Build Quality
The SKILSAW SPT77WML-01 is constructed from lightweight magnesium, weighing in at just 11.5 lbs., which makes it the lightest worm drive saw available. This design reduces user fatigue, allowing for longer working periods without discomfort. On the other hand, the Ryobi One P505 features a GripZone overmold for enhanced handling and control. Although the Ryobi is portable and easy to maneuver, it does not match the robust build quality and durability of the SKILSAW. For professionals who need a tool that can withstand the rigors of job sites, the SKILSAW's superior construction is a significant advantage.
Cutting Capabilities
The SKILSAW SPT77WML-01 boasts a 53° bevel, allowing users to perform a wider variety of cuts compared to the Ryobi One P505, which has an adjustable bevel of up to 50 degrees. This extra flexibility in cutting angles can be crucial for complex projects where precision is key. The Ryobi, while capable of handling basic cuts effectively, may not offer the same versatility for more intricate woodworking tasks. For users who frequently engage in detailed cutting work, the SKILSAW's enhanced capabilities may prove indispensable.
User Experience
User experience is a critical factor in choosing a circular saw. The Ryobi One P505 includes features such as an extra side handle for improved control and visibility, which can enhance the user’s comfort during operation. Additionally, the transparent lower guard provides maximum visibility while cutting. Meanwhile, the SKILSAW features an anti-snag lower guard that ensures smooth operation for small cut-off pieces, which can be particularly beneficial during extensive cutting jobs. Both saws are designed with user-friendly features, but the SKILSAW’s focus on reducing user fatigue and improving performance under heavy use may be more appealing to professionals.
Portability
The Ryobi One P505 shines in terms of portability due to its cordless design, enabling users to take it anywhere without being tethered to an outlet. This feature is particularly advantageous for DIYers or those working on projects in various locations around their property. In contrast, the SKILSAW SPT77WML-01, while powerful, is a corded model, which can limit mobility and require access to power sources. For users who prioritize the ability to move freely while working, the Ryobi's cordless convenience is a considerable benefit.
Brand and Reputation
Both Ryobi and Skil have established strong reputations in the power tool industry. The Ryobi One P505 is ranked 18,485 in sales, indicating a solid market presence among home improvement tools. The SKILSAW SPT77WML-01, with a sales rank of 26,210, is also well-regarded but slightly less popular in comparison. Ryobi is often favored by DIY enthusiasts for its affordability and effective performance, while Skil is recognized for its durability and power, appealing more to professional users. Choosing a brand ultimately depends on the user's specific needs and the context in which the tool will be used.
Which should you buy?
The decision between the Ryobi One P505 and the SKILSAW SPT77WML-01 largely depends on your specific needs and budget. If you are a homeowner or a DIY enthusiast looking for a cost-effective and portable solution for occasional projects, the Ryobi One P505 at $44.89 is a solid choice. However, if you are a professional or a serious hobbyist who requires a powerful, durable tool for frequent use, the SKILSAW SPT77WML-01, despite its higher price of $179.00, offers superior power, build quality, and versatility. Ultimately, both products have their strengths, making them suitable for different types of users.

