Logitech MX Master 3S vs Logitech MX Master 4

Both are Logitech's top productivity mice with the same MagSpeed wheel, thumb wheel, Flow cross-computer control and 70-day battery. The MX Master 3S is the proven pick: 11,000 ratings at 4.7 and 390 Best Buy reviews at 4.8, with owners calling it comfortable and accurate. The MX Master 4 Special Edition adds an eighth button and a wider color range, but it is heavier at 150 g and has far less owner feedback to judge reliability. Buy the 3S unless you want the extra button or a specific color.

• Choose the MX Master 3S if you want the well-reviewed, lighter mouse with a long track record of comfort and accuracy.
• Choose the MX Master 4 Special Edition if you want an extra programmable button or a color other than black.