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Logitech Signature M650 L Full Size Wireless Mouse vs ProtoArc Ergonomic Mouse, EM11 NL Bluetooth

Updated August 2026 — Logitech Signature M650 L Full Size Wireless Mouse wins on noise and customization, ProtoArc Ergonomic Mouse, EM11 NL Bluetooth wins on price and connectivity.

The Logitech Signature M650 L offers superior features and comfort, making it the better choice for most users. However, the ProtoArc Ergonomic Mouse is a budget-friendly option with decent functionality.

Why Logitech Signature M650 L Full Size Wireless Mouse is better

Silent Operation

Logitech's SilentTouch technology reduces click noise by up to 90%.

Customization

Logitech allows for customizable side buttons through software.

Battery Life

Logitech lasts up to 24 months on a single AA battery.

Why ProtoArc Ergonomic Mouse, EM11 NL Bluetooth is better

Price

ProtoArc is priced at $26.99, making it more affordable.

Multi-Device

ProtoArc connects to up to 3 devices simultaneously.

Ergonomics

ProtoArc's vertical design is specifically for smaller hands.

Overall score

Logitech Signature M650 L Full Size Wireless Mouse
85
ProtoArc Ergonomic Mouse, EM11 NL Bluetooth
70

Specifications

SpecLogitech Signature M650 L Full Size Wireless MouseProtoArc Ergonomic Mouse, EM11 NL Bluetooth
ConnectivityBluetooth & USBBluetooth & USB
Battery TypeAARechargeable
DPI LevelsN/A1000/1600/2400
Weight100g90g
CompatibilityMultiple OSWindows, Mac, Android

Dimension comparison

Logitech Signature M650 L Full Size Wireless MouseProtoArc Ergonomic Mouse, EM11 NL Bluetooth

Design and Ergonomics

The ProtoArc Ergonomic Mouse features a vertical design that promotes a natural wrist position, while the Logitech Signature M650 L is tailored for larger hands with its traditional shape. The ProtoArc's ergonomic approach aims to reduce discomfort and strain, making it suitable for prolonged use, especially for those who suffer from wrist pain. In contrast, the Logitech mouse offers customizable side buttons and a soft thumb area, providing comfort and versatility for various hand sizes and usage scenarios. Users with smaller to medium hands may find the ProtoArc more suitable, as it is specifically designed for hand lengths under 7.5 inches, while the Logitech caters more broadly to different hand sizes.

Connectivity Options

The Logitech Signature M650 L provides multiple connectivity options, including Bluetooth and a Logi Bolt USB receiver, making it compatible with a variety of devices. This seamless connection method allows for quick pairing and switching between devices. On the other hand, the ProtoArc Ergonomic Mouse supports dual connectivity modes with Bluetooth 5.0 and a 2.4GHz USB-A receiver, enabling simultaneous connection to up to three devices. While both mice offer versatility, the ProtoArc's ability to connect to multiple devices gives it an edge for users who frequently switch between computers or gadgets.

Battery Life and Charging

The Logitech Signature M650 L boasts an impressive battery life of up to 24 months on a single AA battery, ensuring long-lasting use without frequent replacements. In comparison, the ProtoArc Ergonomic Mouse has a built-in 500mAh Li-Ion battery that can be recharged using a Type-C cable. While the Logitech mouse allows for hassle-free battery management with its standard AA battery, the ProtoArc offers the convenience of recharging, which may appeal to users who prefer not to replace batteries frequently. However, the need for recharging may also add an extra step for the ProtoArc users.

Silent Operation

The Logitech Signature M650 L excels in providing a quieter user experience thanks to its SilentTouch technology, which reduces click noise by up to 90%. This feature is advantageous for users who work in shared spaces or need to maintain focus without distractions. The ProtoArc Ergonomic Mouse does not emphasize silent operation in its features, suggesting that it may not be as quiet as the Logitech model. For individuals prioritizing a noiseless environment, the Logitech Signature M650 L is the clear winner in this category.

Customization Features

Customization is a strong point of the Logitech Signature M650 L, which allows users to configure side buttons for personal shortcuts through the Logitech Options+ software. This feature enhances productivity by enabling quick access to frequently used functions. Conversely, the ProtoArc Ergonomic Mouse does not mention programmable buttons, indicating limited customization options. If personalized, efficient workflow is important, the Logitech mouse stands out as the more flexible choice.

Compatibility

The Logitech Signature M650 L is designed to work across multiple platforms, including Windows, macOS, Linux, ChromeOS, iPadOS, and Android, making it a versatile addition to any tech setup. It is also certified as a Works with Chromebook product, ensuring seamless integration with various systems. The ProtoArc Ergonomic Mouse supports Windows, Mac OS, and Android devices but does not mention compatibility with as many operating systems. This broader compatibility of the Logitech mouse makes it a more universal option for diverse users.

Price Point

The Logitech Signature M650 L is priced at $39.99, while the ProtoArc Ergonomic Mouse is available for $26.99, making the ProtoArc about 33% cheaper. This significant price difference might attract budget-conscious consumers or those looking for a straightforward ergonomic solution without breaking the bank. However, the additional features and ergonomic design of the Logitech mouse may justify its higher price for users seeking enhanced comfort and functionality.

Which should you buy?

Choosing between the Logitech Signature M650 L and the ProtoArc Ergonomic Mouse primarily hinges on individual needs and preferences. If you prioritize ergonomic design, silent operation, customizable features, and long battery life, the Logitech Signature M650 L is a compelling choice, albeit at a higher price point. Conversely, if budget is a critical factor and you prefer a mouse that connects to multiple devices with a straightforward ergonomic design, the ProtoArc Ergonomic Mouse presents a solid option. Ultimately, consider your specific usage scenarios, hand size, and the importance of features such as customization and silent operation when making your decision.