By and large, the Atlantis Mini is no different from the original Atlantis. That is hardly a bad thing, of course, given how well the original performed. Naturally, the most obvious difference is the size: Scaled down uniformly, the Atlantis Mini is significantly smaller than the Atlantis, which was bordering on large, whereas the Mini is bordering on medium, instead. Accordingly, for those who found the Atlantis awkard to use, the smaller size of the Mini may afford a change in perspective, despite the shape being no different. Another perk of the downsizing is the weight, which is 49 g instead of 55 g, bringing the weight fairly close to the 46 g of the G-Wolves Hati-S Plus ACE. The internal design and battery size are unchanged, so the weight difference is entirely due to the difference in size. Structurally, the Atlantis Mini is just as solid as its larger sibling: no rattle when shaking, minimal creaking and no flexing when applying pressure, and the side buttons cannot be actuated by squeezing the sides.

Much like on the original Atlantis, the main buttons of the Mini are outfitted with LAMZU-branded Huano switches (blue shell, pink plunger), which have been modified according to LAMZU's needs for lighter actuation, and which, some pre-travel notwithstanding, provide a snappy and firm button response, with lateral button movement kept to a minimum. While the first-batch Atlantis came with Kailh switches for the side buttons, later batches are equipped with Huano switches, which continues to be the case on the Mini. In terms of button response, the difference is rather small, as the design itself is no different. Accordingly, pre-travel is still low, and actuation even, but the buttons can be pushed in a decent bit past their actuation point. The encoder has been changed, too: Instead of a TTC Yellow ("Gold"), the Mini utilizes a TTC White, which behaves very similarly, providing good tactility at elevated noise levels. Finally, the scroll wheel switch also has been swapped to a different model. Instead of a proper mechanical switch from YSA, a seemingly unbranded tactile switch is used on the Mini. In practice, the difference in actuation force is marginal, and only the feel differs somewhat. The feet are still pure PTFE with slightly rounded edges, which is why glide is virtually unchanged and still excellent, but instead of two larger skates, the Mini comes with four smaller ones. A set of replacement feet is once again included.

The wireless experience on the Mini is virtually identical to the original Atlantis. The charging cable is unchanged, and still leaves something to be desired in terms of flexibility, though the stiffness is at least partially alleviated by the angled connector, which is supposed to reduce cable drag. Charging is decently fast, and given the parity in battery size, the Mini can be expected to last just as long as the Atlantis. Unfortunately, the battery charge indicator within the software continues to be not much of a help, as its readings aren't particularly accurate or reliable. Other than that, I still have no complaints about the software, which both light on resource and pleasantly bug-free, all while offering all the important options.

On their website, LAMZU is offering two different firmware updates for the Atlantis Mini. The one called "default" is supposed to restore default behavior, whereas another one called "short sleeping mode" is supposed to give better battery life at the cost of higher latency. The difference between these only applies to wireless operation, and can be explained as follows: As on other mice using the CX58250 MCU, the first click after five seconds of sensor and button inactivity will have additional latency applied on the Atlantis Mini. On the default firmware, when using a debounce time that would result in an effective click latency of less than roughly 8 ms, the first click will effectively be extended to that value; if the effective click latency already is higher in the first place, no additional latency is applied. The "short sleeping mode" firmware behaves fundamentally different: Regardless of debounce time, the first click after idling will be delayed by an additional flat 9 ms. For tactical FPS, where five seconds of both sensor and button inactivity aren't completely uncommon at least, this behavior is certainly undesirable, and sticking with the default firmware thus is recommended. Outside of these differences in power-saving mechanisms, the firmwares perform identically, including in regard to general click latency, which sits at 3.9 ms in wireless mode when using the lowest debounce time of 0/1 ms. For those who aren't concerned about these things, the "short sleeping mode" firmware offers an avenue to squeeze out some additional battery life. LAMZU giving users the choice in this regard is definitely most welcome.

The Mini utilizes the same combination of CX52850 MCU and PAW3395 sensor as the Atlantis, which is why performance is nearly identical. The exception is an oddity related to CPI deviation: After any CPI step is adjusted in the software, deviation is effectively halved compared to out-of-the-box, which appears to be a bug. Hence, to minimize deviation, simply opening the software once and adjusting a random CPI step is recommended. Aside from that, general tracking is still excellent owing to MotionSync, polling stable save for polling rates other than 1000 Hz in wireless mode, and motion delay is low across to the board thanks to there not being any smoothing. MotionSync does add some minor motion delay, however, which already was the case on the Atlantis, resulting in a wireless motion delay in the range of 1.5–2 ms.

To sum it up, the Atlantis Mini is just as good as the original Atlantis. Accordingly, the Atlantis Mini earns our Editor's Choice award.

When it comes to the competition, there is no shortage. The $149.99 Razer Viper V2 Pro has a higher weight, better performance, similarly good build quality, and comes with optical main button switches, along with the option for 4000 Hz wireless polling by virtue of the HyperPolling Wireless Dongle, although the software can be a nuisance. The ASUS ROG Harpe Ace Aim Lab Edition weighs slightly more, has better performance, similarly good buttons and build quality, but Armoury Crate can be headache-inducing, for $149.99. For $129.00, the G-Wolves Hati-S Plus ACE weighs marginally less due to a smaller battery, has similar performance except for lower click latency, a similarly good build and buttons, and a similarly stiff charging cable. The $94.95 Pulsar X2 and X2 Mini have similar performance, similar weight and button quality, and very similar software, but some issues with quality control. At 68 g, the Fnatic BOLT weighs significantly more, struggles with its buggy software and dull side buttons, but scores with good performance, for $89.99. Lastly, the Cooler Master MM712 is the budget option at $69.99, with similar performance on the latest firmware, optical main button switches, a higher weight, and a poor side button.