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Makita XAG04Z 18V LXT® Lithium-Ion Brushless vs Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled

Updated July 2026 — Makita XAG04Z 18V LXT® Lithium-Ion Brushless leads on price and speed.

The Makita XAG04Z offers superior performance and features compared to the Ryobi R18AG-0, making it the better choice for serious users.

Why Makita XAG04Z 18V LXT® Lithium-Ion Brushless is better

Motor Technology

Makita has a BL Brushless Motor for better efficiency.

Safety Features

Makita includes Active Feedback-sensing Technology.

Performance

Makita offers Automatic Speed Change for optimal performance.

Why Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled is better

Price

Ryobi is significantly cheaper.

Simplicity

Ryobi is easier to use for casual tasks.

Weight

Ryobi is lighter and more portable.

Overall score

Makita XAG04Z 18V LXT® Lithium-Ion Brushless
85
Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled
65

Specifications

SpecMakita XAG04Z 18V LXT® Lithium-Ion BrushlessRyobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled
Motor TypeBrushlessBrushed
Safety FeaturesYesNo
Speed ControlAutomaticNone
Battery System18V LXTONE+
Sales Rank1252920989

Dimension comparison

Makita XAG04Z 18V LXT® Lithium-Ion BrushlessRyobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled

Overview of the Makita XAG04Z and Ryobi R18AG-0

The Makita XAG04Z and Ryobi R18AG-0 are both cordless angle grinders, but they cater to different needs and budgets. The Makita XAG04Z is priced at $128.99, while the Ryobi R18AG-0 is significantly cheaper at $62.29, making it about 52% less expensive than the Makita model. This price difference reflects the varying levels of features and performance each grinder offers.

Motor Performance and Technology

The Makita XAG04Z boasts a BL Brushless Motor that provides efficient energy use, resulting in up to 50% longer run time per charge compared to traditional motors. This advanced technology also helps the tool run cooler and with increased power and speed. On the other hand, the Ryobi R18AG-0 does not specify the type of motor it uses, which may indicate a more basic performance level. Users looking for sustained performance during demanding tasks may find the Makita's brushless technology a significant advantage.

Speed and Torque Management

The Makita XAG04Z features Automatic Speed Change technology that adjusts speed and torque during operation for optimal performance. This is particularly beneficial for varying materials, allowing for a more tailored approach to grinding and cutting tasks. Meanwhile, the Ryobi R18AG-0 lacks any mention of similar speed or torque management features, which could limit its versatility for different applications. The superior technology in the Makita is likely to appeal to professionals or serious DIYers who need a more adaptable tool.

Battery and Compatibility

Both grinders operate on cordless battery systems, but the Makita XAG04Z is part of a larger 18V Lithium-Ion system, which is noted as the world's largest cordless tool system. This system provides faster battery charge times and the ability to use multiple batteries across different tools. The Ryobi R18AG-0 is part of the ONE+ system, but without the same emphasis on performance and compatibility that Makita offers. Users may prefer the Makita's battery technology for longer work sessions and improved overall efficiency.

Safety Features

The Makita XAG04Z is equipped with Active Feedback-sensing Technology (AFT) that turns the motor off if the wheel is suddenly forced to stop. This feature enhances user safety and prevents tool damage during unexpected situations. In contrast, the Ryobi R18AG-0 does not list any safety features beyond being a cordless angle grinder, which may raise concerns for users prioritizing safety in high-torque applications. The enhanced safety of the Makita may make it a more reliable choice for those concerned about operational risks.

Pricing and Value Proposition

With the Makita XAG04Z retailing at $128.99 and the Ryobi R18AG-0 at $62.29, there is a notable price gap of approximately $66.70. While the Ryobi offers a budget-friendly option for casual users or light tasks, the Makita provides advanced features that justify its higher price point. For professionals or frequent users, the additional investment in the Makita may result in better long-term value due to its durability and performance capabilities.

Customer Reception and Sales Rank

The Makita XAG04Z has a sales rank of 12,529, indicating a solid following among users who appreciate its advanced features. In comparison, the Ryobi R18AG-0 has a sales rank of 20,989, suggesting it may not be as popular among serious users. The higher sales rank of the Makita reflects its reputation for quality and performance, which could influence a buyer's decision if they are looking for a trusted tool.

Which should you buy?

In conclusion, the choice between the Makita XAG04Z and Ryobi R18AG-0 largely depends on your specific needs and budget. If you require a powerful, feature-rich angle grinder with advanced technology, the Makita XAG04Z is the superior option despite its higher price. However, if you're a casual user looking for a basic, budget-friendly tool for lighter tasks, the Ryobi R18AG-0 provides an accessible choice. Ultimately, understanding your usage requirements will guide you to the best decision for your angle grinding needs.