Logitech Signature Comfort Plus M850 L Wireless Bluetooth mouse – (Graphite)

Dimensions

• Signature Comfort Plus M850 L (with battery) – receiver not included
  • Height: 121.8 mm
  • Width: 74.3 mm
  • Depth: 44.2 mm
  • Weight: 107.9 g
• Signature Comfort Plus M850 L (without battery) – receiver not included
  • Height: 121.8 mm
  • Width: 74.3 mm
  • Depth: 44.2 mm
  • Weight: 82.9 g

Technical Specifications

Sensor & Tracking

• Sensor Technology: Pluto ONE
• Nominal value: 1000 DPI
• DPI (Minimal and maximal value): 400-4000 DPI (can be set in increments of 100 DPI)
• Tracking technology: Logitech Advanced Optical

Buttons

• Number of Buttons: 6 (Left/Right-click, Scroll-wheel middle click, side buttons, DPI button)
• Gesture button: No
• Number of programmable buttons: 4 (Scroll-wheel middle click, side buttons, DPI button)

Scroll Types

• Scroll Wheel: SmartWheel
• Horizontal scroll: Virtual
• Thumb wheel: No

Features

• Customization app: Logi Options+, Logi Tune
• Handedness: Right

Battery

• Battery type: 1 AA battery (Alkaline Battery)
• Battery life: 24 months
• Battery life with Logi Bolt USB Receiver: up to 24-months
• Battery life with Bluetooth®: up to 24-months

Connectivity

• Connection Type: Bluetooth Low Energy Technology
• Wireless range: 10 m
• Unifying-ready mouse: No
• Unifying-ready receiver: No
• Multi-device pairing: Up to 3 devices

System Requirements

• Bluetooth: Required: Bluetooth Low Energy, Windows 10, 11 or later, macOS 12 or later, Linux*, ChromeOS*, iPadOS* 15 or later, Android™ OS* 12 or later. (*Device basic functions will be supported without software for systems other than Windows and macOS)
• Logi Bolt USB receiver: Compatible with Logi Bolt USB Receiver (not included), Not compatible with other Logitech USB receivers.
• Customization app: Logi Options+, Logi Tune
• Certified for: WWCB, Engineered for Intel Evo laptops

All day comfort

Take comfort into your own hands with Signature Comfort Plus M850 L, a wireless mouse that blends comfort and productivity. Feel the sculpted design and soft palm cushion. Work effortlessly with SmartWheel scrolling and customizable buttons.

Logitech’s first mouse with palm cushion

The palm cushion on the mouse gives you a comfy spot for your hand, making long hours of work feel a little more comfortable. 93% of surveyed users felt comfortable using the mouse, even after a full workday*.

*Based on a Logitech US study (2025) with 105 external participants with varying hand sizes over a 5-day usage trial

Gentle hold, comfy control

The sculpted shape fits naturally in your hand. The thumb rest and extended rubber side grip give you confidence and control. It’s the perfect fit.

Effortless scrolling, quiet clicks

Scroll line by line or fly through pages with SmartWheel—all with quiet clicks for a calm, focused workflow.

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Warranty Information

1-Year Limited Hardware Warranty