The G-Wolves Fenrir Max is a lightweight wireless gaming mouse, part of G-Wolves' Fenrir lineup, designed for a fingertip grip. It's significantly smaller and lighter than most FPS gaming mice but still includes a pair of side buttons, which not all fingertip mice offer. Its shell has a minimalist design with an open baseplate. While this exposes the interior and makes it more prone to collecting dust and debris, it also helps further reduce weight. It utilizes a PixArt PAW 3950 sensor, supports a maximum wireless polling rate of 8,000Hz, and features Huano Transparent Blue Shell Pink Dot mechanical switches.
Our Verdict
The G-Wolves Fenrir Max isn't designed with work use in mind, especially given its exclusively fingertip-grip shape, but it's perfectly adequate for this usage if that doesn't bother you. It also boasts impressive build quality for such a lightweight mouse, and it connects wirelessly using the included receiver, although it lacks Bluetooth support. That said, its open baseplate design means the interior can collect dust and debris, so it's less than ideal as a travel mouse you'd toss into a laptop bag. The scroll wheel also sits quite low in its housing, which may take some getting used to, and it lacks productivity features like tilt scrolling inputs or a free-scroll mode.
Impressive build quality.
No Bluetooth support.
Open baseplate design leaves the interior open to collecting dust and debris.
The G-Wolves Fenrir Max is an extremely small, lightweight mouse designed exclusively for fingertip grip. It delivers exceptional sensor and click latency performance for FPS gaming, making it an amazing option for competitive players who prefer this grip type. Despite its ultralight design, it also feels very well-built. Its only notable drawback is the open baseplate design, which leaves the interior more exposed to potential damage and allows dust and debris to collect inside. However, this isn't a problem during normal use, and G-Wolves includes a set of stickers to cover the bottom to mitigate it.
Impressive build quality.
Exceptionally low click latency
Exceptional sensor latency.
Maximum wireless polling rate of 8,000Hz.
Astonishingly lightweight.
Open baseplate design leaves the interior open to collecting dust and debris.
The G-Wolves Fenrir Max is good for MMO gaming, especially if you prefer fingertip-style shapes. It offers solid build quality and has two side buttons, which many fingertip mice lack. However, it doesn't come close to the button count of a dedicated MMO mouse. That said, its excellent sensor and click performance make it more than capable for competitive, PvP-oriented play.
Impressive build quality.
Exceptionally low click latency
Exceptional sensor latency.
Open baseplate design leaves the interior open to collecting dust and debris.
Far fewer side buttons than typical MMO mice.
The G-Wolves Fenrir Max provides outstanding raw performance, with exceptionally low and consistent sensor and click latency. It also supports a maximum polling rate of 8000 Hz, which helps provide more consistent and slightly smoother motion, particularly at higher frame rates.
Exceptionally low click latency
Exceptional sensor latency.
Maximum wireless polling rate of 8,000Hz.
Changelog
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Updated Nov 11, 2025:
We've retested on G-Wolves' latest software (version 1.0.0.20), which adds properly implemented debounce settings that were missing from the version we originally tested. The unexpectedly poor click latency results we initially measured are now dramatically improved and in line with this model's expected performance. We've updated our review text in several places to reflect this change. See the Click Latency section for more details.
- Updated Nov 10, 2025: Review published.
- Updated Sep 10, 2025: Early access published.
- Updated Aug 08, 2025: Our testers have started testing this product.
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Differences Between Sizes And Variants
The G-Wolves Fenrir Max is available in three colorways: Black, White, and Violet. We tested a Violet unit. We typically include a photo of the unit label, but this mouse doesn't have a visible label to photograph. Some other review sources and retailers refer to this mouse as the G-Wolves Fenris, but they're actually referring to the same mouse.
Within the wider Fenrir lineup, G-Wolves offers another model called the G-Wolves Fenrir Asym, which shares the same internal components but has an asymmetrical shape and additional weight-saving cutouts in the shell. We expect our performance results in this review to also apply to that model.
There's an additional model within the Fenrir lineup called the G-Wolves Fenrir Pro. It shares the same shape as the Fenrir Max but is significantly lighter, featuring a more minimalist plastic shell with extensive weight-saving cutouts. While it uses the same sensor model, it has different main switches. We consider it different enough to be treated as a separate product, and we don't expect our performance results from this review to apply to it.
Popular Mouse Comparisons
The G-Wolves Fenrir Max is part of G-Wolves' latest lineup of wireless mice designed for fingertip grip users. Note that the name of this mouse is somewhat inconsistent. Some G-Wolves' documentation and some retailer listings refer to this mouse as the Fenrir Max, but it's the same mouse.
The company has carved out a niche in this space and is widely regarded as one of the top options for competitive players who favor this grip style. This model sits among G-Wolves' premium-priced offerings alongside the Fenrir Asym, a model in the same lineup with an asymmetrical shape for those who prefer more of an 'ergo' design approach with added pinky support.
Weighing in at under 30g, the Fenrir Max is one of the lightest gaming mice on the market, featuring cutting-edge internals, including a flagship PixArt PAW 3950 sensor and support for 8,000Hz polling. Its specifications are comparable to current high-end models from Logitech, Razer, and other industry leaders. Compared directly to other fingertip options, it outperforms budget models like the Keychron M4 and earlier G-Wolves models such as the HSK Pro 4K, and even slightly edges out premium wired alternatives like the Zaunkoenig M2K. Altogether, it's an outstanding wireless choice for competitive fingertip users. Its only major downside is the price, which places it in the same category as flagship models from Logitech and Razer at the top end of the market.
For more recommendations, see our picks for the lightest mouse, the best FPS mouse, and the best wireless gaming mouse.
The G-Wolves HSK Pro 4K and G-Wolves Fenrir Max are wireless mice designed exclusively for a fingertip grip. While they share a similar wedge-shaped design, the HSK Pro 4K is slightly narrower and lower profile, with honeycomb perforations on its top shell. Despite being a bit larger and using a solid plastic shell, the Fenrir Max is actually slightly lighter. It also supports a higher maximum polling rate of 8000Hz and provides significantly better sensor latency.
The Razer Viper V3 Pro and G-Wolves Fenrir Max are both lightweight wireless gaming mice, but they have very different shapes. The Razer has a much larger, more traditional design that suits a wide range of hand sizes and grip types, while the G-Wolves is much smaller with a wedge-shaped body intended exclusively for fingertip grip. The G-Wolves is also significantly lighter, though its open baseplate design makes it more prone to collecting dust and debris. Both mice offer outstanding raw performance and support a maximum polling rate of 8000Hz, making them well-suited for competitive play.
The Zaunkoenig M2K and G-Wolves Fenrir Max are both extremely lightweight gaming mice designed for fingertip grip use. While they share a similarly wedge-shaped design, the Zaunkoenig is a wired-only model that's noticeably taller and wider than the G-Wolves. It also offers better build quality. By comparison, the G-Wolves is a wireless model with marginally better overall performance, though both are excellent options for competitive play with no perceptible performance differences in practice.
The Keychron M4 and G-Wolves Fenrir Max are lightweight wireless gaming mice designed exclusively for fingertip grip. The Keychron is much longer and slightly taller, with a more centered hump and a fully enclosed plastic shell. In contrast, the G-Wolves is noticeably smaller and lighter, featuring a closed plastic top shell and an open bottom plate design that leaves it more exposed to dust and debris. The G-Wolves mouse also offers better build quality, higher-quality mouse feet, and better sensor performance.
Test Results
The G-Wolves Fenrir Max is available in several colorways. We tested the Violet version, which has a translucent shell with tiny iridescent flecks embedded throughout. There's also an opaque matte white version with green buttons, as well as an all-black version.
While there's no RGB lighting in the traditional sense, a bright LED on the underside near the sensor can be customized in the software to display different colors and breathing effects that correspond to various CPI settings.
Note: due to the translucent plastic shell, we needed to apply a liberal amount of aerosol spray to ensure the scan displayed properly. This process leaves tiny white specks visible on the scan and makes the mouse appear more frosted than it actually is. The coating helps us capture a clean image but doesn’t affect the accuracy of the scan, and the dimensions remain unchanged.
The G-Wolves Fenrir Max has impressive build quality. While it's extremely lightweight and its plastic shell is noticeably thin, the plastic used in its construction doesn't feel cheap. It uses a honeycomb construction that gives it decent sturdiness, and it doesn't feel overly fragile. That said, if you squeeze the shell forcefully, the body does creak slightly.
This mouse also features an open baseplate design to help reduce overall weight. Unfortunately, this means the interior is more susceptible to dust, debris, and potential damage if you're not careful about where you place it, although this doesn't cause any issues in normal use. Additionally, the box includes several large stickers designed to cover the opening, which can help mitigate this.
The G-Wolves Fenrir Max is a very small, symmetrical mouse designed for fingertip grip. It's about half the length of a typical FPS gaming mouse and has a wedge-shaped profile with fairly straight sides, a rounded back, and a very low front-button height.
The side buttons are well-placed for most hand sizes, but the mouse's extremely light weight can make them tricky to use without unintentionally shifting your aim unless your hand is well stabilized.
Within the same lineup, there's also a G-Wolves Fenrir Asym model that uses the same internal components but features a slightly different ergonomic shape, flaring out on the right side to provide a ledge for pinky support.
G-Wolves doesn't advertise the battery size or expected battery life for this mouse. We've seen other reviewers identify a 200mAh-capacity battery, and rough ballpark reports from users online suggest a battery life of "several days" at 4000Hz of 5-7 hours daily use.
The G-Wolves Fenrir Max comes with two cables: a black paracord-style cable that's slightly too short for comfortable wired play, and a slightly longer gray paracord cable that feels less flexible. According to G-Wolves' website, the cable colors may vary, and the shorter black cable in the box is intended for use with the 8k receiver, while the slightly longer gray cable is meant for charging only.
The dot feet are of average thickness and glide smoothly on both mousepads and desks. This mouse comes with six dot-style feet installed out of the box, but it also includes a set of alternate strip-style feet if you prefer, along with extra dot skates and adhesives.
- 2.4 GHz USB receiver
- USB-C to USB-A black cable ( 1.3 m)
- USB-C to USB-A gray cable ( 1.5 m)
- 2 x alternate stip-style PTFE feet
- 3 x sticker coverings for the open baseplate
- Sheet of adhesive grips
- 2 × fingerless arm gloves
- Carrying case
- Strap for carrying case
- 4 × shapeable lightweight clay packets
- Extra dot-style feet
- Set of dot foot adhesives
- 2 x double-sided 3M stickers
- Lavender scent packet
- User documentation
Due to the small size of this mouse and relatively small main button size, we were unable to register a click more than 3.0 cm from the front of the mouse, which is expected and very typical for fingertip mice. You can still register clicks around the 3.5 cm mark from the front of the mouse, but the switches are significantly heavier the further back you try to press the button.
You can reprogram all buttons on the G-Wolves Fenrir Max using the companion software.
The G-Wolves Fenrir Max has exceptionally low click latency, offering a highly responsive experience suitable for competitive play in any genre.
We performed this test using the following settings:
- Click Debounce: A (minimum)
- Click Debounce DIY: On
- Before Press: 0 ms
- After Press: 0 ms
- After Release: 0 ms
- Polling Rate: 8000Hz (wireless maximum), 1000Hz (wired maximum)
- Competitive Mode: On
Note: Our initial published click latency results with this mouse measured significantly worse latency (upwards of 20 ms) with all debounce settings at minimum on software version 0.9.3. These results were highly unexpected. We've now retested using the same firmware but an updated version of G-Wolves' software (version 1.0.0.20), which added new debounce slider options. With these additional debounce settings set to their minimum values, our new measurements are dramatically improved and align with expectations for this mouse. See an image of the old debounce options and the new debounce options for reference.
G-Wolves warns that keeping all debounce settings at their minimum values can increase the likelihood of double-clicks. This is a standard disclaimer for all mice with adjustable debounce settings, and it's expected that you may need to raise these values slightly as the switches age to prevent double-clicking.
This mouse's sensor accurately tracks your movements with minimal errors.
It does have slightly elevated SRAV across all tested CPI settings, but the difference is minor. You may just need a short adjustment period to get used to the slight speed offset and avoid overshooting your target during quick swipes, but you'll develop the muscle memory for it quickly.
This mouse has exceptionally good sensor latency performance that's well-suited for gaming at any competitive level.
We tested at the maximum wireless polling rate of 8000Hz with Competition Mode enabled in the software.
We also performed supplementary testing using 1000Hz using both a wired and wireless connection.
The G-Wolves Fenrir Max's wireless polling rate settings are 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000H, and 8000Hz
The wired polling rate settings are 125Hz, 250Hz, 500Hz, and 1000Hz.
The mouse wheel has a rubberized coating that provides good grip, and scrolling feels precise with well-defined steps. It's also fairly quiet.
Note that the wheel sits quite low, with minimal clearance above the main click surfaces, which may take some getting used to depending on your preferences.
The wheel also sits very close to the mousepad surface on the underside. While this doesn't cause issues in normal use, the open baseplate design means there's a chance you could damage the scroll wheel assembly from below if you're not careful about where you set the mouse down.
Pressing laterally on the scroll wheel (from the left side toward the right) actuates the middle-click button. This behavior is fairly common among gaming mice and often happens because the scroll wheel axle and housing sit close to the middle-click microswitch. It's a design quirk that some users appreciate, as it lets you activate the button with a lateral movement of your index finger rather than lifting and pressing down. This can feel faster and more comfortable for people who don't use a 1-3-1 grip style with their middle finger resting on the scroll wheel at all times.
While fairly high-pitched, the main buttons are relatively quiet. However, the side buttons are noticeably louder.
The software, available from G-Wolves' website as a Chromium-based web driver or a downloadable application, has a straightforward layout with a wide range of expected configuration options. It also has several more advanced options, including a setting to adjust the sensor angle. This is useful if you hold your mouse at an angle and want your swipes to align accordingly.
Unfortunately, some areas of the software have unclear descriptions. In particular, there's a debounce slider with settings labeled A–F, without any explanation of what those settings mean. They're likely factory presets with different press and release debounce delays for both the main clicks and the scroll wheel. More confusingly, there's a separate "DIY" debounce slider with a typical 0–30 ms range.
There's no way to toggle Motion Sync on or off, but there's a "Competitive Mode" that presumably prioritizes raw performance at the cost of higher battery consumption.