Logitech MX Master 4 vs Logitech MX Master 3S Bluetooth Edition

Design and build quality

Both mice feature an ergonomic design crafted for comfort during extended use. Product A offers a silhouette crafted for a more natural wrist posture with optimally placed thumb controls. Product B is similarly designed for comfort, keeping users in flow with a natural tilt and intuitive buttons. Both models include a thumb scroll wheel intended to reduce hand stress for fluid navigation. The build quality focuses on reducing hand stress and maintaining a natural posture regardless of which model is selected.

Tracking and sensor performance

Precision tracking is a core component of both devices. Product A utilizes an 8000 DPI sensor with customizable sensitivity, capable of any-surface tracking even on glass. This allows the cordless computer mouse to work on virtually any surface without a mousepad. Product B emphasizes precision you can feel but does not specify a DPI number in the provided data. While Product A provides a concrete resolution figure, Product B focuses on the overall feeling of precision during operation.

Connectivity options

Connectivity differs significantly between the two models. Product A is a Bluetooth only mouse and does not come with any USB receiver or adapter. This limits connection options to Bluetooth-enabled devices. Product B offers more versatility with 2X more powerful connectivity options. It includes a USB-C dongle, advanced radio chip, and optimized antenna for faster, stronger, reliable performance, alongside Bluetooth support. The inclusion of a dongle in Product B provides a more robust connection alternative.

Scrolling experience

Both mice utilize MagSpeed scrolling technology for remarkable speed and precision. Product A claims the MagSpeed scrolling is 90% faster and 87% more precise than standard scrolling, offering near silence. Product B specifies the ability to scroll 1,000 lines per second and stop on a pixel. It is described as Logitech's fastest, quietest, and most precise scrolling experience. While both offer high-speed scrolling, Product B provides a specific line-per-second metric.

Noise levels and clicks

Quiet operation is a shared feature across both devices. Product A features Quiet Clicks that offer the same satisfying feel but with 90% less click noise. This is designed to reduce distractions in shared workspaces. Product B also features Quiet Clicks that reduce noise and distractions, offering a soft, satisfying feel. Product A provides a specific percentage reduction claim, whereas Product B describes the qualitative feel of the clicks.

Software and customization

Customization capabilities vary between the two options. Product A allows users to customize buttons and optimize workflows with App specific profiles in the Logi Options+ app. It also supports FLOW cross-computer control to work seamlessly on multiple computers and transfer files. Product B introduces the Actions Ring, a dynamic, customizable overlay that adapts to each app. It also features a Haptic Sense Panel with customizable haptic feedback on specific actions and notifications. Product B offers more advanced interface customization tools.

Price and value

Price is a differentiating factor for budget-conscious buyers. Product A is listed at $99.99, making it the more affordable option. Product B is priced at $119.99, reflecting its additional hardware and feature set. Product A provides strong value for users who primarily need Bluetooth connectivity and standard customization. Product B targets users willing to pay a premium for included dongles and haptic feedback features. The $20 price difference reflects the variance in included accessories and interface technology.

Which one should you buy?

Choosing between these models depends on connectivity needs and feature priorities. If you require a USB receiver for a stable connection or want advanced features like haptic feedback and the Actions Ring, Product B is the superior choice. It justifies the higher price with included hardware and dynamic customization tools. However, if you prefer a lower cost and rely solely on Bluetooth connectivity, Product A offers solid performance with defined DPI specs and significant noise reduction. Users working on glass surfaces may also prefer Product A for its confirmed any-surface tracking specifications.