Dong Cheng 20V MAX 7-1/4'' Brushless Cordless vs Yunirvana 4Amp 3500RPM Mini Circular Saw with
Updated July 2026 — Dong Cheng 20V MAX 7-1/4'' Brushless Cordless leads on no load speed and motor power.
The Dong Cheng saw offers superior power and cutting depth, making it ideal for professionals, while the Yunirvana is a compact and affordable option for casual users.
Why Dong Cheng 20V MAX 7-1/4'' Brushless Cordless is better
Cutting Power
850W motor vs 4A motor
Cutting Depth
65mm vs 42.8mm
Durability
Designed for contractors and serious DIYers
Why Yunirvana 4Amp 3500RPM Mini Circular Saw with is better
Portability
Compact and lightweight design
Price
$49.99 vs $96.59
Ease of Use
User-friendly for beginners
Overall score
Specifications
| Spec | Dong Cheng 20V MAX 7-1/4'' Brushless Cordless | Yunirvana 4Amp 3500RPM Mini Circular Saw with |
|---|---|---|
| Bevel Capacity | 0-45° | 0-45° |
| Dust Collection | Yes | Yes |
| Safety Features | Trigger Lock | Dual Switches |
| Included Blades | 24T & 40T | 2x 24T |
| Warranty | Not Specified | Included |
Dimension comparison
Overview of the Products
In this comparison, we will look at the Dong Cheng 20V MAX 7-1/4'' Brushless Cordless Circular Saw Kit and the Yunirvana 4Amp 3500RPM Mini Circular Saw. The Dong Cheng model is priced at $96.59, while the Yunirvana is about 48% cheaper at $49.99. Each saw is designed for different types of users, which influences their specifications and intended applications.
The Dong Cheng saw is tailored for contractors and serious DIY enthusiasts, featuring a powerful 850W brushless motor that delivers a no-load speed of 5000 RPM. In contrast, the Yunirvana is more compact and lightweight, making it a great option for casual users and those who prefer portability, thanks to its 4-amp motor that operates at 3500 RPM.
Cutting Power and Performance
The Dong Cheng circular saw offers superior cutting power with an 850W motor compared to Yunirvana's 4-amp motor. This difference translates to the Dong Cheng's capability to cut through tougher materials more efficiently, making it ideal for professional settings. The Dong Cheng model can handle hardwood, plywood, and decking boards with ease.
On the other hand, the Yunirvana, while less powerful, is still effective for lighter tasks. It is designed to cut through wood, PVC, laminate, and plasterboard. Although it has a lower no-load speed at 3500 RPM, it is sufficient for most DIY projects, particularly where precision is more critical than raw power.
Blade Size and Cutting Depth
Blade size and cutting depth are crucial factors in determining a circular saw's versatility. The Dong Cheng circular saw features a 7-1/4" blade, allowing a maximum cutting depth of 65mm (about 2.56 inches) at 90 degrees and 45mm (approximately 1.77 inches) at 45 degrees. This depth is suitable for most framing and renovation projects.
Conversely, the Yunirvana's 4-1/2" blade allows a maximum cutting depth of 1-11/16 inches (about 42.8mm) at 90 degrees and 1-1/8 inches (approximately 28.6mm) at 45 degrees. While this makes it less capable for larger materials, its compact size enables it to be used in tighter spaces, which is beneficial for detailed or intricate work.
Portability and Weight
Portability is a significant consideration when choosing a circular saw. The Dong Cheng weighs 3.8kg, which, while lightweight for a full-sized saw, may still be cumbersome for some users. Its cordless design does afford freedom of movement on job sites, but it is primarily intended for more extensive cutting tasks that require stability and power.
In contrast, the Yunirvana's compact size and lightweight design make it ideal for one-handed operation. This is a notable advantage for users who need a tool that is easy to maneuver and transport. Its design is optimized for quick cuts and portability, making it suitable for smaller jobs or DIY projects at home.
Features and Accessories
The Dong Cheng circular saw comes equipped with a variety of features that enhance its usability. It includes a dust collection adaptor that connects to vacuums or sawdust bags, which helps maintain a clean workspace. Additionally, it features a trigger lock switch for safety and anti-slip grips to reduce fatigue during prolonged use.
On the other hand, the Yunirvana features a laser guide for precision cutting, which is particularly useful for users who prioritize accuracy in their work. It also includes a vacuum adapter for dust extraction, a rip guide for straight cuts, and two TCT blades, providing excellent value for its lower price point. This makes it a solid choice for casual users who value convenience and ease of use.
Intended User Base
The Dong Cheng circular saw is aimed at contractors and serious DIYers who need a robust tool for demanding applications. Its higher price point reflects its durability and performance capabilities, making it a worthwhile investment for professionals or those engaged in extensive home renovations.
Conversely, the Yunirvana is designed for casual users and DIY enthusiasts who may not require the same level of power or features. Its affordability and compactness make it an attractive option for those who are less experienced or only need a circular saw for occasional projects.
Safety and Ease of Use
Safety features are important in power tools, and both saws offer designs aimed at minimizing risks. The Dong Cheng includes a trigger lock switch to prevent accidental startups, an essential feature when working in potentially hazardous environments. Its design also focuses on reducing arm fatigue, which can be particularly beneficial during extensive projects.
The Yunirvana also emphasizes safety, featuring two switches for operation and a transparent blade guard to protect the user. Its compact design allows for better visibility of the cutting line, which is crucial for precision work. This makes the Yunirvana more user-friendly for beginners or those less experienced in using circular saws.
Which should you buy?
Choosing between the Dong Cheng 20V MAX 7-1/4'' Brushless Cordless Circular Saw Kit and the Yunirvana 4Amp 3500RPM Mini Circular Saw depends on your specific needs. If you are a professional or serious DIYer looking for power, versatility, and performance, the Dong Cheng is the better option despite its higher price at $96.59. However, if you are a casual user or someone who values portability and affordability, the Yunirvana, priced at $49.99, offers excellent value for lighter tasks. Ultimately, your choice should reflect the nature of your projects and your experience level with power tools.

