Logitech G Pro X Superlight 2 vs Razer Viper V3 Pro: which mouse wins?

Two Different Roads to the Same Esports Goal

These are premium wireless esports designs rather than all-purpose desktop mice. Neither has Bluetooth, RGB lighting, a free-spinning wheel or a bank of MMO controls. Instead, Logitech and Razer spent their budgets on low mass, high-speed wireless connectivity, optical switch technology and sensors built for fast, repeated aim corrections.

The Logitech G Pro X Superlight 2 arrived in September 2023 at a UK launch RRP of £149. The Razer Viper V3 Pro followed in April 2024 at £159.99. That seven-month gap is visible in Razer's package: its 8,000Hz HyperPolling receiver shipped in the box and Razer published runtime figures for each major polling tier. Logitech's original Superlight 2 specification later evolved through firmware to support 8,000Hz and 44,000 DPI on the same generation.

Neither outline is truly ambidextrous in use. Both put thumb controls on the left side only, making them primarily right-handed mice despite their symmetrical silhouettes. Their focus is also similar: claw and fingertip FPS players, especially people who make large low-sensitivity movements and care about a clean, unperforated shell.

Logitech G Pro X Superlight 2: The Refined Incumbent

The Logitech G Pro X Superlight 2 is the second-generation version of Logitech's widely adopted Superlight formula. Its 125 × 63.5 × 40mm body retains the simple, smooth shell that made the original popular: little sculpting, a moderate hump, two thumb buttons and a clean top surface without a DPI switch or decorative lighting.

Check today's price: Logitech G Pro X Superlight 2 on Amazon UK

Logitech specifies the mouse at 60g, while Tom's Hardware recorded 59.5g and Tom's Guide reported roughly 59.9g. Those figures are still very light for a full-size solid-shell wireless mouse. Tom's Guide also described its review unit as sturdy, without obvious squeaking when squeezed, which matters because low mass can otherwise make a plastic shell feel hollow or fragile.

The hardware change over the first Superlight is the LIGHTFORCE main switch. Logitech combines optical actuation with a mechanical-feeling click mechanism, rating it for 70 million clicks. In practical descriptions, that created a more deliberate character than lighter, softer esports clicks: Tom's Hardware found the main buttons heavier than some rivals, and PC Gamer called them loud enough to cut through music played through over-ear headphones.

The HERO 2 sensor is now specified for 100 to 44,000 DPI, more than 888 IPS tracking speed and more than 88G acceleration, with zero smoothing, acceleration and filtering claimed by Logitech. Those ceilings are far beyond ordinary competitive settings, but the useful point is consistency. RTINGS described click latency as exceptionally low and sensor performance as outstanding, while Tom's Hardware reported accurate tracking in CS:GO and Overwatch 2.

Its practical strengths are familiar rather than flashy. USB-C replaced the original model's Micro-USB connection, onboard memory supports saved settings, and Logitech includes grip tape, a receiver extension adapter and an alternate PTFE-covered Powerplay puck. The zero-additive PTFE feet drew a mixed reaction: TechRadar liked them on a gaming mat but found bare-desk glide less convincing, and RTINGS similarly felt some rivals moved more smoothly.

For a player coming from another Superlight, this is the low-risk choice. The shell has a broad reputation because it does not force the hand into aggressive finger grooves or a pronounced ergonomic slant. It is particularly sensible for claw, fingertip and relaxed palm users who want a medium-large neutral body rather than an intensely sculpted FPS tool.

Razer Viper V3 Pro: The Lighter, Faster Challenger

The Razer Viper V3 Pro approached the same brief with a more explicitly performance-led specification. The black model weighs 54g, and RTINGS recorded 53.8g. It is also fractionally longer and wider than Logitech's mouse at 127.1 × 63.9 × 39.9mm, with a rounder rear profile, subtle finger shaping and a ring-finger ledge that make the silhouette feel more intentional in a claw grip.

Check today's price: Razer Viper V3 Pro on Amazon UK

Razer positioned that shape around claw and fingertip use. RTINGS found it comfortable across a wide span of hand sizes and grips, but TechRadar's reviewer did not get on with its more pronounced rear hump for palm use. That is the crucial warning: lower weight does not rescue a shape that presses in the wrong place against your hand.

The Focus Pro 35K Optical Sensor Gen-2 reaches 35,000 DPI, 750 IPS and 70G acceleration. Razer also claims 99.8% resolution accuracy. Its Gen-3 optical switches are rated for 90 million clicks, 20 million more than Logitech's rating, and Razer claims 0.2ms actuation with no debounce delay. Those ratings do not guarantee a particular lifespan for every individual mouse, but they underline Razer's all-optical approach.

Razer bundled the HyperPolling Wireless Dongle, so the 8,000Hz headline works without adding a separate receiver. RTINGS praised the Viper V3 Pro's click and sensor latency, whilst its April 2026 firmware retest still classified the results as exceptional after a small 0.4ms increase to the receiver click-latency result. TechRadar also reported a stable wireless connection without dropouts or noticeable lag.

The Viper's larger 100% PTFE feet are a meaningful physical advantage. RTINGS specifically judged them smoother than Logitech's stock feet, and Tom's Hardware liked the wide contact patches. The supplied USB-C cable is less flattering: TechRadar described it as relatively thick and draggy, which matters more with a mouse this light if you often play while charging.

Weighing the Difference: 60g vs 54g in the Hand

Six grams can sound abstract until you compare it with the total. RTINGS' 53.8g measurement for the Viper V3 Pro against Tom's Hardware's 59.5g figure for the Superlight 2 puts Razer about 5.7g ahead: roughly a 10% reduction in the moving mass under your hand. For a low-sensitivity player repeatedly lifting a mouse at the edge of a pad, that is a credible difference.

Do not mistake the chart for a comfort ranking. Logitech's body is 2.1mm shorter and 0.4mm narrower, with a slightly taller 40mm peak. Razer is longer, marginally wider and almost identical in height, but its hump and lateral shaping alter where support lands in the palm and fingers. A player who relaxes their grip may prefer Logitech's simpler shape despite the weight penalty.

Both designs achieve these figures with closed, solid shells. That means no honeycomb cut-outs collecting dust and no need to accept the flexible feel associated with some earlier ultra-light designs. Build quality was a positive in RTINGS' coverage of each mouse, so weight is not being bought at the expense of an obviously compromised chassis.

Sensors and Switches: Where the Real Performance Gap Lives

On paper, Logitech takes the sensor-specification lead in two columns. HERO 2 reaches 44,000 DPI and more than 888 IPS, against the Viper's 35,000 DPI and 750 IPS. Logitech also specifies more than 88G acceleration, while Razer specifies 70G. For almost every competitive player, however, all of these ceilings are surplus to requirement.

The numbers that might matter over ownership are switch feel, glide and software control. Logitech's hybrid switches preserve a more mechanical click character, but reviewers found that character weightier and louder. Razer's optical switches were described by Tom's Hardware as firm and clicky, though still somewhat loud. Neither is a quiet-office mouse; both are designed around deliberate FPS inputs.

RTINGS rated both products highly for raw competitive performance, and its direct comparison gave Razer a small advantage for latency, feet and optical-switch durability. This should not be read as Logitech failing to keep pace. Both sensors are comfortably capable of CS2, Valorant, Apex Legends and Overwatch 2; the practical selection comes down to weight, shape and the configuration you actually intend to run.

Polling Rate and the 8,000Hz Battery Trade-off

At 1,000Hz, the competition is a dead heat on official claims: both quote up to 95 hours. PC Gamer reported that the Superlight 2 still showed 89% after more than 35 hours of combined gaming and work use, while TechRadar saw the Viper V3 Pro lose around 1% after a little more than an hour of continuous gaming. Those observations support the idea that both can comfortably cover several ordinary sessions at sensible polling settings.

Razer gives the clearer picture once you raise the report rate. It specifies up to 62 hours at 2,000Hz, 40 hours at 4,000Hz and 17 hours at 8,000Hz. Tom's Hardware recorded Logitech operating estimates of around 51 hours at 2,000Hz, compared with up to 95 hours at 1,000Hz in power-saving hybrid-switch mode.

The theoretical interval between reports drops from 1ms at 1,000Hz to 0.25ms at 4,000Hz, then 0.125ms at 8,000Hz. Tom's Hardware made the sensible point that the difference between 4,000Hz and 8,000Hz is only 0.125ms, whilst higher polling makes a substantial call on battery life and can increase system load. A fast monitor and a powerful gaming PC make the mode easier to justify, but it is not mandatory for competitive play.

Logitech has one counterpoint that matters for long-term convenience: Powerplay compatibility. A compatible Logitech charging mat can keep the Superlight 2 topped up during use through its puck system. The accessory is sold separately, but for someone already invested in Powerplay, it is a real ecosystem advantage that Razer does not offer.

Buttons, Software and the Bits That Annoy You Daily

The Superlight 2 takes minimalism further. It has five programmable buttons: left and right click, scroll-wheel click and two left-side buttons. There is no dedicated DPI button on the body, so sensitivity changes happen in Logitech G HUB unless you assign DPI duties to a control you would otherwise use in-game.

The Viper V3 Pro has six physical controls, including an underside power/DPI button, with scroll-up and scroll-down assignments allowing eight programmable functions in the relevant Synapse configuration. Razer also offers HyperShift secondary assignments. That is useful for players who want push-to-talk, a temporary DPI setting or utility functions without surrendering a combat bind.

Neither software suite is friction-free. Tom's Hardware criticised G HUB's mapping workflow, and PC Gamer reported confusing macro assignment and a DPI-reset issue until the relevant setting was found. On the Razer side, Synapse offers more options, including sensitivity matching, power controls and lift-off adjustments, although more options can mean more setup time.

For pure competitive play, Logitech's restraint can be an advantage: fewer controls mean fewer accidental actions and a simpler muscle-memory layout. For mixed desktop and gaming use, Razer's extra assignable functions are more flexible. Neither mouse is designed to replace a productivity mouse with Bluetooth switching, wheel tilt or many side buttons.

Pound for Pound: UK Pricing and What You Actually Get

At launch, the Logitech G Pro X Superlight 2 cost £149 in the UK, while the Razer Viper V3 Pro cost £159.99. The roughly £11 gap was modest considering both were positioned as flagship esports mice, but Logitech's lower launch price gave it a cleaner value argument for players who already preferred the Superlight shape.

In current UK shopping, street pricing can matter more than old RRPs. If the Logitech is substantially discounted, it is the more compelling value route because its core competitive performance remains extremely strong. If prices sit close together, the Viper's 6g weight advantage, larger PTFE feet, included 8K receiver and fuller high-polling battery information justify its premium for players who like the shape.

Do not count Powerplay as "free" value unless you already own the compatible charging mat. It is an extra purchase for a new buyer. Equally, do not pay extra solely for 8,000Hz if you plan to stay at 1,000Hz for battery life; both mice are equally rated at up to 95 hours in that mode.

Shape and Grip: Which Hand Does Each Mouse Actually Fit?

Shape determines this comparison more decisively than sensor specifications. RTINGS found the Superlight 2's symmetrical body accommodating for most hand sizes and grip types. TechRadar also found all five controls reachable for a small-handed reviewer. Its smooth, unsculpted flanks leave more room to find your own grip rather than directing fingers to fixed grooves.

Razer's shell is still symmetrical in outline, but it feels more sculpted. The 127.1mm length, 63.9mm width and rear-shifted hump make it a natural proposition for claw and fingertip players who hold the mouse actively. Razer itself recommends those grips, and RTINGS found it broad in appeal, but TechRadar's palm-focused experience is an important counterexample.

Frequently Asked Questions on Choosing Between Them

The Verdict: Two Winners for Two Different Grips

For most people, the decisive question is simple: do you prefer the Viper's lighter, more shaped claw-focused body or Logitech's safer, smoother Superlight silhouette? Pick the Viper if the answer is the former. Pick Logitech if the latter is more familiar to your hand, particularly if Powerplay or a lower purchase price closes the deal.