The Logitech M720 Triathlon is a multi-device wireless mouse designed for high-endurance productivity. It bridges the gap between basic office mice and the premium MX Master series, offering a sculpted right-handed design, hyper-fast scrolling, and the ability to pair with three devices simultaneously.

The Logitech M720 Triathlon is often described as the "workhorse" of the Logitech lineup, and its design reflects this utility. It features a deep-sculpted, right-handed shape that caters specifically to palm and claw grip users. The exterior is wrapped in a soft-touch rubberized material that provides excellent grip, though long-term users note this material is the mouse's most vulnerable point. Structurally, the M720 feels dense and well-assembled, lacking the hollow creaking often found in budget peripherals. The "Triathlon" moniker is represented by the three illuminated numbers on the thumb rest, indicating which device is currently active. The button layout is intuitive, featuring two primary buttons, a clickable scroll wheel, two side navigation buttons, and a unique "hidden" gesture button integrated into the thumb rest.

In a professional environment, the M720 excels. The 1000 DPI optical sensor is perfectly adequate for dual-monitor office setups, providing smooth and predictable tracking on most surfaces, though it struggles on glass. The standout feature remains the Hyper-fast Scroll Wheel. With a mechanical toggle, users can switch between a ratcheted "click-to-click" mode for precision and a "free-spin" mode that allows you to fly through thousands of lines in Excel. When paired with Logitech Options+ software, the performance is elevated through "Flow," which allows the cursor to move across different physical computers (and even transfer files/text) as if they were a single multi-monitor setup. The latency via the Unifying Receiver is negligible, while Bluetooth performance is stable enough for everything except high-stakes gaming.

Setup is remarkably straightforward. The Easy-Switch button on the side allows for near-instant toggling between a desktop, a laptop, and a tablet. For those who frequently move between a home office and a corporate environment, the ability to stay paired to three distinct devices is a significant time-saver. The Logitech Options+ software is highly visual and allows for per-app customization—for instance, the side buttons can be set to "Undo/Redo" in Photoshop but "Forward/Back" in Chrome. The physical size of the mouse is "medium-large," providing enough support to prevent wrist fatigue during an eight-hour workday, though it is slightly less bulky than the MX Master 3S, making it more portable.

Reliability is where the M720 has earned its legendary status in the "Logitech subreddit" and community forums. Unlike rechargeable mice that eventually suffer from lithium-ion degradation, the M720 runs on a single AA battery. Logitech claims 24 months of life, and real-world feedback consistently backs this up, with many users forgetting the mouse even requires power. The switches are rated for 10 million clicks, and while "double-clicking" issues have plagued some Logitech models, the M720 has a lower reported failure rate than the earlier G-series gaming mice. The connection remains robust even in environments with high wireless interference.

The M720 is the definitive choice for the "multi-tasker." It is ideal for IT professionals managing multiple servers, accountants working with massive datasets, and students who juggle a laptop and a tablet. It also serves as an excellent "bridge" mouse for those who want professional features but aren't ready to invest in the flagship MX series. It is not recommended for FPS gaming due to the 125Hz polling rate on Bluetooth and the fixed DPI, but for casual or strategy gaming, it is more than capable. It is also a favorite for "hot-desking" due to its durability and easy connectivity.

After two to three years of daily use, the consensus from the community is overwhelmingly positive, with two notable caveats. First, the rubberized coating can become "sticky" in humid climates or if exposed to certain skin oils/lotions. Cleaning it with high-percentage isopropyl alcohol can sometimes help, but it eventually wears down. Second, the PTFE feet (the pads on the bottom) will eventually wear flat, though replacements are easily found online. Beyond these cosmetic and wear-and-tear issues, the internal hardware is known to be exceptionally resilient. Many users report their M720 still functioning perfectly after five years of service, making it one of the best value-for-money peripherals in the tech world.