Logitech MX Ergo S Review: The Thumb Tax

The Diagnosis

You do not buy a trackball because life is going well. You buy a trackball because your wrist has begun filing complaints with management. The Logitech MX Ergo S exists for this exact moment. It is not sexy. It is not fast. It is a desk-bound concession to anatomy.

That is not an insult. It is the only honest way to look at this thing. Logitech refreshed the old MX Ergo with USB-C, quieter clicks, and the same 20-degree tilt that reduces the amount of forearm rotation and desk travel the device demands. The pitch is simple: move less, hurt less.

The Brick with the Marble

At 164 grams without the metal plate and 259 grams with it, this is not a mouse you flick around. It sits there like a dense little office monument while your thumb does the commuting. That is the whole bargain. The cursor moves, but the mouse does not.

The shape is still unmistakably Logitech: gray, serious, vaguely medical, and just premium enough that you can pretend this was a lifestyle choice instead of a physical intervention. The trackball itself is the visual centerpiece, which is a glamorous way of saying all the grime eventually has a stage to perform on.

The Rehabilitation Week

If you come from a normal mouse, the first few days with the MX Ergo S are humbling. Your thumb overshoots. Your brain keeps trying to shove the body across the desk. Precision feels worse before it feels better. Then, somewhere around the point where your forearm stops feeling torqued, the device starts making sense.

This is the part Logitech is selling, and to its credit, the ergonomic logic is sound. A stationary thumb trackball plus the tilt angle can genuinely help if your problem is wrist rotation and the constant dragging motion of a conventional mouse. If that is not your problem, the benefits get much murkier.

The Thumb Tax

Relief, however, is not free. Logitech has not abolished repetitive strain; it has rerouted the traffic. Instead of asking your wrist to do the work, it asks your thumb. For some people, that is a miracle. For others, it is simply a different body part taking the beating.

This is why the MX Ergo S is so niche. If it solves your exact problem, it feels revelatory. If it does not, you are left with an expensive gray puck that makes ordinary pointer movement slower and stranger than it needs to be.

The Logitech Tax

The refresh helps. USB-C charging finally removes the old-model humiliation of hunting down a Micro-USB cable. The battery life is long enough to become a non-issue, and the quiet clicks make the whole thing feel less aggressive in an office. It supports Bluetooth and Logi Bolt, gives you Easy-Switch for two devices, and still works with Logi Options+ and Flow if you like bouncing between machines.

But then you hit the scroll wheel and remember where Logitech saves its poetry for the MX Master line. The MX Ergo S wheel is fine. That is the problem. It is merely fine. No MagSpeed sorcery, no tactile delight, just a wheel doing clerical labor.

The Maintenance Ritual

Trackballs are never fully civilized. The MX Ergo S still demands cleaning, because the ball and bearings collect dust, oil, and dead-skin confetti until the movement turns from smooth to gritty. A regular mouse can usually hide your neglect. A trackball keeps receipts.

This is one of those truths enthusiasts describe as “part of the hobby,” which is a charming way of saying your ergonomic solution now has a hygiene schedule.

The Software Clause

Logi Options+ remains the usual Logitech bargain: useful, a little bloated, and irritatingly necessary if you want the good behavior. The six customizable buttons matter here because the whole point of the device is to reduce unnecessary movement.

Software cannot change the core reality: this is a specialized tool. If you want the best general productivity mouse, Logitech already makes one. If you want a less painful way to survive all-day pointer work, this is the weird little gray bunker you buy instead.

Community Consensus

Across Reddit threads and user discussion, the reaction is consistently mixed in the same ways. People like the USB-C refresh, the quieter buttons, and the immediate wrist relief. They do not like the occasional stiction, the ordinary scroll wheel, or the fact that some of the strain can migrate straight into the thumb.

• MX Ergo S quick review: slightly nicer overall but ball grippier: early owners like the USB-C refresh and softer clicks, but complain that the ball can feel grippier than the old model.
• The new Logitech MX Ergo S doesn’t use standard switches?: the repairability and long-term switch durability anxiety is very real.
• Pain in my thumb - 5 years with MX Ergo: a useful reminder that wrist relief is not the same thing as universal comfort.
• The MX3 this trackball is not: the scroll wheel disappointment is not just my personal vendetta.
• How quiet are the new M575S or MX Ergo S?: the quieter buttons are one of the few upgrades people notice immediately.

That leaves the MX Ergo S in the most Logitech position imaginable: thoughtfully engineered, highly competent, mildly annoying, and only glorious if your body is forcing your hand.