For the past few years, a Logitech MX Vertical has sat on my desk. I've grown to love the mouse so much that I even take it with me when I travel despite it not folding down or being compact in any way. So, when ProtoArc reached out to me about a newer, budget-friendly ergonomic mouse, I was skeptical that Logitech had anything to learn.

The Logitech MX Vertical fits in my hand well, lets my arm rest at a natural angle, charges through USB-C, and has aged well. The ProtoArc EM11 Pro is not exactly a direct competitor to the Logitech MX Vertical since the two mice are in different price brackets. But there are relatively few angled mice out there, at least in comparison to flat mice, so it's natural to pit the ProtoArc EM11 Pro against the Logitech MX Vertical.

Using the ProtoArc EM11 Pro made me realize a few areas the Logitech MX Vertical lags. If Logitech ever refreshed its ergonomic mouse, it should take some lessons from ProtoArc.

Grip and palm fit

The ProtoArc EM11 Pro and the Logitech MX Vertical fill my hand differently. Logitech's mouse lies flush against my palm as my hand contours around the mouse. But the flat front of that mouse leaves a small gap between my fingers and the buttons.

In contrast, the ProtoArc EM11 Pro has an elongated base with a curve that tapers down at a sharper angle than the Logitech MX Vertical. As a result, the mouse does not feel flush against my palm. But the front of the mouse is curved, making the space behind the buttons feel more comfortable.

I'd love to have a mouse that combines the best of both designs since neither mouse is perfect.

Two wheels are better than one

ProtoArc's ergonomic mouse has two scroll wheels, one set for vertical navigation and the other for scrolling horizontally. I didn't realize how much I wanted two scroll wheels until I navigated Excel and Google Sheets with a pair of wheels. I've always just held Shift on my keyboard and used the single scroll wheel when I needed to move horizontally in a spreadsheet, but having a second wheel feels much smoother. It also requires less movement, which is a key part of ergonomic setups.

Silent clicks for quiet workspaces

I work from home, so I don't have any coworkers to irritate with mouse clicking. If anything, my 10-month-old daughter enjoys the Logitech MX Vertical's clicky buttons since she often sits on my lap and plays with my mouse and keyboard.

But if you work in an open office or sit next to someone at school or work, you probably don't want to hear clicking all day. The ProtoArc EM11 Pro is almost completely silent when clicked.

Why I'm sticking with the Logitech MX Vertical

Logitech should take some lessons from the ProtoArc EM11 Pro, but ProtoArc also has some homework to do. ProtoArc's mouse has some lovely features, but I think it either needs a design tweak or an option for people with different-sized hands.

The angle of my hand doesn't feel natural when using the ProtoArc EM11 Pro. The flared bottom makes my hand want to turn over more than I'd like.

Try as I might, I can't find a way to hold the ProtoArc EM11 Pro that feels comfortable. If I place the side of my hand alongside the base, my fingers don't align properly with the buttons. If I slide my hand down so that my fingers align with the buttons, my hand awkwardly presses against the base.

The curvature of the ProtoArc EM11 Pro also makes it feel like I have to curve my hand a bit, rather than rest at a neutral angle.

Ergonomic mice have a learning curve, so I tried ProtoArc's for a while to see if I'd adjust, and it just hasn't — ahem — clicked. But that may be specific to my hand size and shape. I've known people who disliked the feel of the Logitech MX Vertical, so a lot of this comes down to specific users.

Overall, ProtoArc packed its ergonomic mouse with features other companies should envy. I just wish the mouse fit in my hand as well as the Logitech MX Vertical.