Left-handers don't have too many options, so in theory, I'm always appreciative when a new symmetrical mouse surfaces. But whereas the wired M5 RGB still passed for a decent mouse, the ARGENT M5 Wireless RGB simply doesn't.

First of all, major criticism is warranted when it comes to the user experience. One would think that in the year 2021, updating the mouse firmware would be an easy and painless process. Not on the ARGENT M5 Wireless RGB, however, where it took me more than half an hour of battling my way through software crashes, infinite disconnect/re-connect loops, and the mouse straight up ceasing to function, only not to even know whether the update was ever actually applied. In general, the software proved to be buggy, and I'm not too fond of it hogging the CPU quite a bit as well. The only thing I genuinely liked about the software is the battery life indicator, which is more granular than on many other competing mice.

Second, sensor performance leaves a lot to be desired. The first issue is the base sensor delay of roughly 1.5 ms, which is present across all CPI steps and in both wired and wireless operation. Coupled with the wireless delay of about 1–1.5 ms, one ends up with an overall motion delay of roughly 3 ms under optimal conditions, which is somewhat significant. Furthermore, CPI deviation is rather substantial, and several polling rate levels aren't entirely stable, especially when using a specific RGB lighting effect. The already lackluster performance is further undermined by the weight of the ARGENT M5 Wireless RGB. The wired M5 RGB already wasn't exactly lightweight at 98 g, but the M5 Wireless RGB tops this easily, weighing in at a whopping 118 g. Most of the weight increase comes from the installed 1000 mAh battery, which has twice the capacity usually found on wireless mice. While the huge battery allows one to use the M5 Wireless RGB for almost 40 hours with RGB lighting fully enabled, I'd gladly trade the RGB for lower weight. Moving the M5 Wireless RGB around simply doesn't feel as effortless as I'd want it to be, especially when considering it's not a particularly big mouse. The underwhelming performance is rounded off by the click latency, which isn't terrible, but not quite up to par with many competitors, either. Thermaltake informed me that an upcoming firmware update will lower click latency. And while cable flexibility isn't the most important thing for a wireless mouse, it's at least worth mentioning that the included cable is of the ultra-stiff variety.

Is there anything positive to say? Well, buttons are very good across the board, the aluminium scroll wheel provides tactile scrolling and a nice premium feel, and the build generally feels absolutely solid. I have no complaints about the mouse feet, and the RGB lighting is rather nice to look at, although it should be mentioned that the M5 Wireless RGB loses an entire lighting zone compared to the wired M5 RGB, so those fond of RGB are better served taking a look at the wired variant. Lastly, the M5 Wireless RGB charges at a very high rate, but charging does still take a while due to the enormous battery capacity. Again, a smaller battery in conjunction with higher efficiency would've been the better approach.

All in all, I simply can't recommend the ARGENT M5 Wireless RGB. Left-handers looking for a decent option don't have too many options, but the ARGENT M5 Wireless RGB isn't one. The Logitech G Pro Wireless too is symmetrical, but a much better mouse top to bottom, weighing less and performing better, though at $149.99, it's certainly not cheap. The same goes for the Razer Viper Ultimate, which too weighs less, has optical switches, and way better performance, for $149.99. The ASUS ROG Pugio II is another alternative with much better performance, lower weight, and hot-swappable main button switches, costing $99.99. In short, there is no shortage of significantly better alternatives.