Logitech MX Ergo S Advanced Wireless Trackball vs ProtoArc Ergonomic Mouse, EM11 NL Bluetooth
Updated August 2026 — Logitech MX Ergo S Advanced Wireless Trackball leads on price and customization.
The Logitech MX Ergo S offers superior ergonomics and features, making it a better choice for serious users, while the ProtoArc is a budget-friendly option for casual use.
Why Logitech MX Ergo S Advanced Wireless Trackball is better
Advanced Features
Logitech offers customizable buttons and precision tracking.
Battery Life
Logitech lasts up to 120 days on a full charge.
Ergonomics
Logitech is certified for larger hands and reduces muscle strain.
Why ProtoArc Ergonomic Mouse, EM11 NL Bluetooth is better
Price
ProtoArc is significantly cheaper at $26.99.
Multi-Device
ProtoArc connects to up to 3 devices simultaneously.
Vertical Design
ProtoArc's vertical design is beneficial for smaller hands.
Overall score
Specifications
| Spec | Logitech MX Ergo S Advanced Wireless Trackball | ProtoArc Ergonomic Mouse, EM11 NL Bluetooth |
|---|---|---|
| Brand | Logitech | ProtoArc |
| DPI Levels | Adjustable | 1000/1600/2400 |
| Rechargeable | Yes | Yes |
| Tilt Angle | 20 degrees | None |
| Programmable | 6 buttons | None |
Dimension comparison
Price Comparison
The Logitech MX Ergo S Advanced Wireless Trackball Mouse is priced at $99.99, while the ProtoArc Ergonomic Mouse is significantly more affordable at $26.99, making it about 73% cheaper. For those on a budget or seeking a basic ergonomic option, the ProtoArc presents a compelling choice. On the other hand, the Logitech MX Ergo S, with its higher price, offers advanced features that might justify the investment for users who prioritize ergonomic design and enhanced functionality in their daily tasks.
Design and Ergonomics
Both mice prioritize ergonomic design, but they cater to different user needs. The Logitech MX Ergo S features a contoured shape with a 20-degree tilt, designed to reduce muscle strain by 27%. This design is certified by ergonomists and is particularly beneficial for medium- to large-sized hands. In contrast, the ProtoArc Ergonomic Mouse is a vertical design aimed at users with hand lengths under 7.5 inches. It keeps the wrist in a natural position, which can help reduce discomfort. While both designs aim to improve comfort, the Logitech is better suited for larger hands, while the ProtoArc is ideal for smaller grips.
Connectivity Options
Connectivity options differ notably between the two models. The Logitech MX Ergo S boasts dual wireless connectivity, allowing users to connect via Bluetooth or the included Logi Bolt USB receiver. It can switch between two devices seamlessly with the Easy-Switch button. Conversely, the ProtoArc Ergonomic Mouse connects through Bluetooth or its USB-A receiver, supporting up to three devices simultaneously. While the Logitech offers a more versatile dual connection, the ProtoArc’s ability to connect to three devices may appeal to users who multitask extensively across multiple computers.
Customization Features
The Logitech MX Ergo S shines in customization, featuring six programmable buttons that can be tailored through the Logi Options+ App. This allows users to assign shortcuts that can significantly enhance productivity. The ProtoArc Ergonomic Mouse, however, does not offer programmable buttons, which may limit its utility for users who rely on customizable commands for efficiency. For those who value tailored controls to streamline their workflow, the Logitech presents a clear advantage.
Battery Life and Charging
In terms of battery life, the Logitech MX Ergo S has a remarkable advantage, offering up to 120 days on a full charge and even providing 24 hours of use from just a one-minute charge. This impressive efficiency is paired with USB-C charging capabilities. The ProtoArc Ergonomic Mouse, while rechargeable with a 500mAh battery, does not specify its total battery life but emphasizes convenience with its Type-C charging feature. Users who prioritize long-lasting battery life and quick charging may find the Logitech MX Ergo S to be a better option.
Performance and Precision
Performance-wise, the Logitech MX Ergo S features adjustable precision tracking, allowing users to switch between speed and high-precision modes effortlessly. This is particularly useful for tasks ranging from general browsing to detailed design work. The ProtoArc Ergonomic Mouse offers three DPI levels (1000/1600/2400), which provide a range of sensitivity suitable for everyday use. However, the ability to switch precision modes in the Logitech gives it an edge for users who need varying levels of control throughout their tasks.
User Experience and Learning Curve
The user experience with both mice varies based on design and individual adaptation. The Logitech MX Ergo S is designed for immediate comfort with its ergonomic features, while the ProtoArc may require a learning curve as users adjust to its vertical design. This adjustment period is suggested to last 1-2 weeks, during which users may experience discomfort. Those who have never used a vertical mouse may find the ProtoArc challenging initially, whereas the Logitech provides a more intuitive experience right out of the box.
Which should you buy?
The decision between the Logitech MX Ergo S Advanced Wireless Trackball Mouse and the ProtoArc Ergonomic Mouse ultimately depends on your specific needs. If you prioritize advanced features, extensive customization, and superior ergonomics, the Logitech MX Ergo S is worth the investment at $99.99. However, if you're looking for a more budget-friendly option that still offers ergonomic benefits, the ProtoArc Ergonomic Mouse at $26.99 is a solid choice, especially for smaller hands. Consider your budget, hand size, and how you plan to use the mouse when making your decision.

