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RhovixStar Brushless Angle Grinder vs Makita XAG04Z 18V LXT® Lithium-Ion

Updated April 2026 — RhovixStar Brushless Angle Grinder wins on safety features and motor technology, Makita XAG04Z 18V LXT® Lithium-Ion wins on price value and kit completeness.

Makita XAG04Z 18V LXT® Lithium-Ion Brushless Cordless 4-1/2” / 5" Cut-Off/Angle Grinder, Tool Only$128.99

Makita XAG04Z 18V LXT® Lithium-Ion Brushless Cordless 4-1/2” / 5" Cut-Off/Angle Grinder, Tool Only

Makita

Winner
RhovixStar Brushless Angle Grinder Cordless, 3/8 Inch Battery Grinder Power Tools for Cutting, Grinding, Polishing and Rust Removal, 4 Variable Speed, Compatible with Makita 18V Battery$65.99

RhovixStar Brushless Angle Grinder Cordless, 3/8 Inch Battery Grinder Power Tools for Cutting, Grinding, Polishing and Rust Removal, 4 Variable Speed, Compatible with Makita 18V Battery

RhovixStar

The Makita XAG04Z 18V LXT® Lithium-Ion offers superior value with a lower price point and included battery packs, making it ideal for users needing a complete kit. However, the RhovixStar Brushless Angle Grinder provides advanced safety features like Active Feedback-sensing Technology for professional-grade protection during heavy use.

Why RhovixStar Brushless Angle Grinder is better

Advanced Safety Protection

Includes Active Feedback-sensing Technology (AFT) to stop motor if wheel rotation forces stop

Automatic Torque Optimization

Automatic Speed Change technology adjusts speed and torque during operation

Enhanced Energy Efficiency

Electronically controlled motor optimizes energy for up to 50% longer run time per charge

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

Significantly Lower Price

Priced at $65.99 compared to $128.99 for the competitor

Complete Battery Kit

Includes 2 battery packs with 20V 4.0Ah large-capacity li-ion batteries

Variable Speed Options

Features 4 variable speeds up to 9000 RPM for diverse tasks

Ready-to-Use Package

Kit comes with 1x Cordless Angle Grinder and batteries for immediate operation

Overall score

RhovixStar Brushless Angle Grinder
84
Makita XAG04Z 18V LXT® Lithium-Ion
89

Specifications

SpecRhovixStar Brushless Angle GrinderMakita XAG04Z 18V LXT® Lithium-Ion
Price$128.99$65.99
Motor TypeBL BrushlessBrushless
Speed SettingsAutomatic Adjustment4 Adjustable Speeds
Max RPMnull9000 RPM
Battery Includednull2 Packs (20V 4.0Ah)
Safety TechActive Feedback-sensing (AFT)null
Runtime OptimizationUp to 50% longer per chargenull
Torque ControlAutomatic Speed Changenull

Dimension comparison

RhovixStar Brushless Angle GrinderMakita XAG04Z 18V LXT® Lithium-Ion

Design and Build Quality

The RhovixStar Brushless Angle Grinder and the Makita XAG04Z 18V LXT® Lithium-Ion both feature compact and handy designs intended for comfortable operation during extended periods. The RhovixStar Brushless Angle Grinder utilizes an electronically-controlled BL Brushless Motor that is built to run cooler and more efficiently, contributing to a longer product life span. Similarly, the Makita XAG04Z 18V LXT® Lithium-Ion emphasizes a design that feels good in the hand during operation, ensuring user comfort whether working indoors or outdoors. Both tools eliminate carbon brushes, which reduces maintenance requirements and enhances durability over time. While specific weight dimensions are not provided, the focus on ergonomics is evident in the product descriptions for both units.

Motor Technology and Efficiency

At the core of both tools lies brushless motor technology, which offers distinct advantages over traditional motors. The RhovixStar Brushless Angle Grinder features a BL Brushless Motor that is electronically controlled to optimize battery energy use. This engineering allows for up to 50% longer run time per charge compared to standard configurations. The Makita XAG04Z 18V LXT® Lithium-Ion is also equipped with a powerful brushless motor that promises stronger power and faster heat dissipation. Both motors are designed for less energy consumption, ensuring that power delivery remains consistent throughout the task. The elimination of carbon brushes in both models enables the motors to run cooler, which is critical for maintaining performance during heavy-duty grinding or cutting applications.

Speed Control and Performance

When evaluating speed control, the two angle grinders take different approaches to managing RPM and torque. The RhovixStar Brushless Angle Grinder employs Automatic Speed Change technology that adjusts speed and torque during operation for optimum performance. This means the tool electronically matches torque and RPM to the changing demands of the application without user intervention. In contrast, the Makita XAG04Z 18V LXT® Lithium-Ion offers 4 adjustable speeds up to 9000 RPM. This manual variability allows users to select the precise speed needed for a wide range of sanding, polishing, and cutting tasks. The Makita XAG04Z 18V LXT® Lithium-Ion is compatible with a wide range of 3/8 blades, discs, and grinding wheels, providing versatility across metal polishing, tile cutting, stone carving, and carpentry.

Safety Features and Protection

Safety is a critical differentiator in this comparison, particularly for high-speed rotary tools. The RhovixStar Brushless Angle Grinder includes Active Feedback-sensing Technology (AFT), which turns the motor off if rotation of the wheel is suddenly forced to stop. This feature helps prevent kickback injuries and protects the user during unexpected bind-ups. The Makita XAG04Z 18V LXT® Lithium-Ion does not explicitly list comparable active safety sensors in the provided data. While both tools are designed for professional use, the presence of AFT on the RhovixStar Brushless Angle Grinder provides an additional layer of protection that may be vital for users working in high-risk environments or with difficult materials that prone to catching.

Battery System and Runtime

Power delivery and runtime are heavily influenced by the battery systems associated with each tool. The Makita XAG04Z 18V LXT® Lithium-Ion is powered by a 20V 4.0Ah large-capacity li-ion battery system. Notably, the kit includes 2 battery packs, allowing for continuous work by swapping batteries when one depletes. This setup helps users get rid of the limitations of the power cord and work continuously indoor or outdoor. The RhovixStar Brushless Angle Grinder focuses on efficiency, with an electronically-controlled motor that optimizes battery energy use. While specific voltage and capacity numbers are not provided for the RhovixStar Brushless Angle Grinder, the claim of up to 50% longer run time per charge suggests significant efficiency gains. Users prioritizing immediate runtime out of the box may prefer the dual-battery inclusion of the Makita XAG04Z 18V LXT® Lithium-Ion.

Kit Contents and Accessories

The value proposition of each tool is partly defined by what is included in the package. The Makita XAG04Z 18V LXT® Lithium-Ion is sold as a kit that comes with 1x Cordless Angle Grinder and the aforementioned battery packs. This ready-to-use configuration means users do not need to purchase separate power sources to begin working. The RhovixStar Brushless Angle Grinder listing does not specify included accessories or batteries in the provided features. For users who already own compatible batteries, the tool-only option might suffice, but for those starting fresh, the completeness of the Makita XAG04Z 18V LXT® Lithium-Ion kit offers immediate utility. RhovixStar provides convenient and practical kit options with perfect after-sale service, though specific contents beyond the grinder are not detailed.

Price and Overall Value

Price is a major factor for most buyers comparing these two angle grinders. The Makita XAG04Z 18V LXT® Lithium-Ion is listed at $65.99, which is significantly lower than the $128.99 price tag of the RhovixStar Brushless Angle Grinder. Considering the Makita XAG04Z 18V LXT® Lithium-Ion also includes two 4.0Ah batteries, the value proposition is heavily weighted in its favor for budget-conscious consumers. The RhovixStar Brushless Angle Grinder commands a higher price, likely reflecting the specialized technology such as AFT and Automatic Speed Change. Users must decide whether the advanced safety and automation features justify the higher cost compared to the cost-effective completeness of the Makita XAG04Z 18V LXT® Lithium-Ion.

Final Recommendation

Choosing between the RhovixStar Brushless Angle Grinder and the Makita XAG04Z 18V LXT® Lithium-Ion depends on specific user needs regarding safety technology versus overall kit value. The RhovixStar Brushless Angle Grinder is the superior choice for professionals who prioritize active safety features like AFT and automatic torque adjustment to handle demanding applications safely. However, for most users seeking a versatile, ready-to-work solution without a high upfront investment, the Makita XAG04Z 18V LXT® Lithium-Ion wins on value. With a lower price, included batteries, and variable speed settings, it meets all basic needs for metal polishing, tile cutting, and carpentry effectively.