OUBA Cordless Angle Grinder Compatible for Dewalt 20V vs FULLYEA Cordless Angle Grinder 4-1/
Updated July 2026 — OUBA Cordless Angle Grinder Compatible for Dewalt 20V wins on weight, FULLYEA Cordless Angle Grinder 4-1/ wins on value and speed.
The FULLYEA Cordless Angle Grinder offers better performance and value for money, making it the preferred choice for most users.
Why OUBA Cordless Angle Grinder Compatible for Dewalt 20V is better
Cutting Stand
Includes a durable wood cutting stand for stability.
Dewalt Compatibility
Compatible with Dewalt 20V batteries.
Variable Speed
Offers three variable speed settings.
Why FULLYEA Cordless Angle Grinder 4-1/ is better
Higher RPM
Achieves a maximum speed of 12000 RPM.
Dual Batteries
Includes two 4.0Ah batteries for extended use.
Safety Features
Has a rotating safety guard for user protection.
Overall score
Specifications
| Spec | OUBA Cordless Angle Grinder Compatible for Dewalt 20V | FULLYEA Cordless Angle Grinder 4-1/ |
|---|---|---|
| Motor Type | Brushless | Brushless |
| Max RPM | 9500 | 12000 |
| Battery Count | 1 | 2 |
| Weight | 5.5 lbs | 5.0 lbs |
| Speed Settings | 3 | 3 |
Dimension comparison
Overview of the Products
In the realm of cordless angle grinders, the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery by OUBA and the FULLYEA Cordless Angle Grinder 4-1/2 inch stand out as two competitive options. The OUBA model is priced at $69.99, while the FULLYEA offers a more budget-friendly price at $46.99, making it about 33% cheaper. Both models feature brushless motors, but their specifications and usability may cater to different user needs.
Design and Build Quality
The design of both angle grinders plays a crucial role in usability and user experience. The OUBA grinder boasts a durable wood cutting stand, enhancing stability and accuracy for woodwork. Its rubberized anti-slip handle, with two adjustable positions, offers better control, making it user-friendly during various tasks. On the other hand, the FULLYEA grinder features an ergonomic design with dual non-slip auxiliary handles and a rotating safety guard for added protection against debris. While both grinders emphasize comfort, the inclusion of a stand in the OUBA model gives it a slight edge for woodworking applications.
Motor Performance
Motor performance is vital for any power tool, especially angle grinders. The OUBA model features a powerful brushless motor capable of reaching speeds up to 9500 RPM. This provides adequate power for grinding, cutting, and polishing tasks. Conversely, the FULLYEA grinder outshines with its brushless motor that achieves a no-load speed of up to 12000 RPM, making it potentially more suitable for heavy-duty applications. The difference in speed represents about a 26% increase in maximum RPM, which may be a deciding factor for users needing higher performance.
Battery Life and Convenience
Battery life significantly impacts the usability of cordless tools. The OUBA grinder comes with a single 4.0Ah battery and a fast charger, enabling users to power their projects efficiently. In contrast, the FULLYEA grinder includes two 4.0Ah batteries, effectively doubling the running time and providing added convenience for prolonged tasks. This extra battery is a considerable advantage, especially for users who need to work outdoors without frequent recharging interruptions.
Speed Settings and Versatility
Versatility in speed settings can enhance the functionality of an angle grinder. The OUBA model offers three variable speed settings, allowing users to select the optimal speed for different tasks easily. The LED display further aids in monitoring speed, improving precision in work quality. Similarly, the FULLYEA grinder features a three-speed adjustment ranging from 0 to 12000 RPM, providing flexibility for various applications such as grinding and cutting. Both models provide similar versatility, but the FULLYEA’s higher maximum speed may appeal to users requiring greater adaptability.
Safety Features
Safety is paramount when operating power tools. The FULLYEA grinder includes a rotating safety guard, which protects users from flying debris and sparks, enhancing user safety during cutting operations. Additionally, its dual non-slip auxiliary handles offer stability for both left- and right-handed users, making it a safer choice for a wider audience. While the OUBA model has a comfortable grip and a stand that aids stability, it lacks the extensive safety features present in the FULLYEA grinder, which could be crucial for high-risk applications.
Price Comparison
When considering price, the FULLYEA Cordless Angle Grinder is notably more affordable at $46.99, about 33% less than the OUBA grinder's price of $69.99. This significant price difference may attract budget-conscious consumers who still seek quality performance. However, the OUBA model offers additional features like a cutting stand, which may justify its higher price for users focused on woodworking or who prefer compatibility with Dewalt 20V batteries.
Which should you buy?
Choosing between the OUBA Cordless Angle Grinder and the FULLYEA Cordless Angle Grinder largely depends on your specific needs. If you require a grinder with a higher maximum RPM and the convenience of dual batteries for extended use, the FULLYEA model is a strong contender at a lower price point. However, if you prioritize features like a durable cutting stand and compatibility with Dewalt batteries, the OUBA grinder may be worth the investment. Ultimately, both grinders offer robust features, but your choice should reflect the tasks you intend to tackle and your budget constraints.

