In June 2022, we gave not only an Editors' Choice award but one of our ultra-rare five-star ratings to the Logitech MX Master 3S. Dell has decided to challenge that champion of office mice with the MS900 Premier Rechargeable Mouse, a similar right-handed wireless device with the same 8,000 dots per inch (dpi) resolution and $99.99 price. It's a first-class controller, especially when teamed with the Dell KB900 Premier Collaboration Keyboard, but with two or three fewer features than the Logitech, it doesn't match it as an Editors' Choice pick.
Getting a $100 Grip
The MS900 isn't strictly an ergonomic mouse, but resembles the MX Master 3S and other right-hand-only, tilted-top mice with a shape sculpted for midsized and large hands. Clad in dark gray plastic, a color Dell calls Graphite (the only color choice, compared with the three shades of its Logitech rival), it has a slightly larger footprint, measuring 3.5 by 5 by 1.8 inches (HWD) versus 3.3 by 4.9 by 2 inches. Both are relatively heavy, but the Dell is a fraction lighter (4.75 versus 5 ounces).
Your fingers lie comfortably on the clickers, while the butt of the mouse snuggles into your palm and your thumb rests on the wing (or running board) along the left side. The Premier Rechargeable Mouse is soft but not pliant or cushioned to the touch—there's no rubbery thumb grip.
This is a seven-button mouse. On top are left and right primary buttons; a clickable scroll wheel; a button immediately below the latter to toggle between smooth or high-speed and notched scrolling; and a button to cycle through connected devices (more on that in a sec). By your thumb are a clickable wheel for horizontal scrolling and a button just aft of it, which works as a browser Back button out of the box. Clicking the horizontal scroll wheel is Forward by default.
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The Dell Peripheral Manager software, automatically installed along with the mouse, lets you customize three of the buttons—the two scroll wheel clicks and the thumb button—offering a pull-down menu of 40-odd functions for each. It also shows a battery gauge, lets you swap the left and right primary buttons, and is the place to adjust the mouse's sensitivity or resolution between 800dpi and 8,000dpi in increments of 200.
That may not match the 16,000dpi resolution of the fanciest gaming mice, but it's plenty for navigating even the largest 4K display or multi-monitor setup. Dell describes the MS900's engine as a track-on-glass sensor; it worked smoothly and accurately on the wood, glass, and countertop surfaces I sampled.
Testing the MS900: Choose Your Connection
Like many wireless mice, the MS900 supports both Bluetooth and 2.4GHz RF connections, the latter via a dinky USB Type-A receiver with encrypted data transmission. (If you're packing for travel, bringing along the USB dongle is up to you; the Dell isn't one of the few mice with a built-in slot or niche to store it.)
The top rear button lets you pair and use the mouse with up to three computers or smartphones—two Bluetooth and one RF—with Windows, macOS, Linux, Android, and ChromeOS all supported (though the software is Windows-only).
Besides the RF receiver, the Premier Rechargeable Mouse comes with a charging cable with USB-C connectors on both ends (the charging port is on the mouse's nose). Dell says two minutes of charge is enough to power the device for a day and a full charge can last up to three months, topping the 70-day claim of the MX Master. The power gauge barely budged during my days of testing. There's an on/off switch on the mouse's bottom.
Like Dell's KB900 keyboard, the MS900 mouse carries a three-year warranty with Advanced Exchange Service or replacement of a failed device. The peripherals are sold separately for now, though Dell promises a bundle later this year.
Verdict: Admirable, But Not Remarkable
If not for the Logitech MX Master 3S at the same price, we'd give the MS900 Premier Rechargeable Mouse an enthusiastic recommendation. Unfortunately, the MX tops the Dell with two side buttons instead of one, plus a gesture button on the thumb wing that can activate additional functions if pressed while moving up, down, left, or right. It also does horizontal scrolling through browser tabs as well as spreadsheets and offers more sophisticated software, including Logitech Flow with navigation and cutting and pasting between adjacent screens (such as a Windows desktop and Mac laptop). The MS900 is a fine productivity mouse, it just isn't the absolute best.
Dell's stylishly sculpted MS900 makes a strong case for spending $99.99 on a wireless mouse, but Logitech's flagship MX Master 3S makes an even stronger one.
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