Mice / Compare

LAMZU Thorn V2 vs Razer Viper V4 Pro

A

Product A: LAMZU

Thorn V2

61 of 154 known

Change LAMZU Thorn V2

Compare the Razer Viper V4 Pro with

Search mice

B

Product B: Razer

Viper V4 Pro

88 of 154 known

Change Razer Viper V4 Pro

Compare the LAMZU Thorn V2 with

Search mice

All 154 fields

Every value links to where we found it.

Only differences

ALAMZU Thorn V2

BRazer Viper V4 Pro

General

5 of 9 differ

Series

Thorn1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Razer Viper1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Product family: Razer Viper

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

C.00150, C.00151, C.00153, C.001541Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Store variant SKUs: C.00150 Black-red, C.00151 Purple, C.00153 White, C.00154 Orange.

RZ01-05630100-R3U1, RZ01-05630200-R3U1, RZ01-05630300-R3U1, RZ01-05630100-R3G1, RZ01-05630200-R3G1, RZ01-05630300-R3M11Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026US store SKUs end in R3 U1. EU store (eu-en, de-de) SKUs end in R3 G1, the Esports Green Edition in R3 M1

GTIN / EAN

6975637430886, 6975637430718, 6975637430879, 69756374308935Retailer pageus.maxgaming.com/us/wireless-mouses/lamzu-thorn-v2-8k-wireless-gaming-mouse-blackRead 14 October 2026Retailer lists a manufacturer article number per colour, all valid EAN-13 codes: Black 6975637430886, Purple 6975637430718, Orange 6975637430893, White 6975637430879. The retailer's Black is matched to Black-red. The mapping to the C.001xx SKUs is by colour name.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

24 March 20262Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026

Status

Available1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Available1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Razer Viper V3 Pro2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Razer's launch release says the Viper V4 Pro builds on the Viper V3 Pro and is about 9% lighter than it.13Reviewprosettings.net/reviews/razer-viper-v4-proRead 8 October 2026ProSettings reviews the Viper V4 Pro as the successor to the Viper V3 Pro.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

From $159.991Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20262Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 20268Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630200-R3U1Read 30 September 20269Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630300-R3U1Read 30 September 202610Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3G1Read 30 September 202611Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630200-R3G1Read 30 September 202612Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630300-R3M1Read 30 September 202616Press articlephandroid.com/2026/03/24/razer-announces-the-viper-v4-pro-its-latest-gaming-mouseRead 8 October 202617Reviewcgmagonline.com/review/hardware/razer-viper-v4-pro-gaming-mouseRead 8 October 202618Reviewtweaktown.com/reviews/11398/razer-viper-v4-pro-wireless-gaming-mouse-built-for-competition/index.htmlRead 8 October 2026

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US, EU1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

ColoursiThe maker's own colour names

Black-red, Purple, White, Orange1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Black, White, Esports Green Edition1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Segment

Gaming1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Gaming1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Mouse type

Standard1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Standard4Measurementrtings.com/mouse/reviews/razer/viper-v4-proRead 30 September 2026Type: Standard

Shape

5 of 14 differ

Body shapeiDescribes shell symmetry, not the intended hand. Symmetrical with side buttons on one side differs from an asymmetric right-handed body. Ambidextrous means a symmetrical body with side buttons on both sides.

Asymmetric, right-handed1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Product page calls the shape Asymmetrical Ergonomic. The photos show thumb buttons on the left wall.

Symmetrical body1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Maker FAQ: right-handed symmetrical shape. Stored enum describes body symmetry, and left-only side buttons do not make the body asymmetrical.

Maker size classiThe maker’s marketed size label. Do not infer a size class from dimensions or reviewer hand-fit recommendations.

Not available

Not available

Recommended gripsiGrip styles explicitly recommended by the maker. A reviewer finding a grip usable does not add a maker recommendation.

Palm, Claw, Fingertip1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Recommended Grip Style graphic shows palm, claw and fingertip grips.

Claw, Fingertip1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: optimized for Claw and Fingertip users

Recommended hand sizeiMaker recommendation, measured from wrist to middle fingertip for hand length. Source notes specify whether limits are inclusive or exclusive.

Hand length (min)175mm1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic says not recommended for small hands (< 17.5 cm). Stored as a minimum hand length of 175 mm. The page does not name the measurement method.

Not available

Hump positioniPosition of the shell’s highest point along its length, from a maker drawing or exact-model review.

Not available

Centre13Reviewprosettings.net/reviews/razer-viper-v4-proRead 8 October 2026Exact Viper V4 Pro review describes a central, gradual hump.

Thumb rest

No7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Shape table lists Thumb rest: No.

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Exact-model complete body/control drawing shows no separate thumb, ring or pinky support shelf.

Ring or pinky finger rest

No7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Shape table lists Ring finger rest: No.

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Exact-model complete body/control drawing shows no separate thumb, ring or pinky support shelf.

Upper shelliThe primary hand-contact shell. An open or perforated bottom alone does not make the upper shell perforated.

Not available

Solid5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model body drawing shows a closed upper hand-contact shell. An open underside does not change this classification.

Swappable parts

Not available

Not available

Adjustable weight

Not available

Not available

Maximum added weightiTotal removable weight supplied with the mouse, excluding the mouse’s normal weight.

Not available

Not available

Vertical angle

Not available

Not available

Trackball diameter

Not available

Not available

Trackball position

Not available

Not available

Dimensions and weight

2 of 5 differ

Mouse body dimensionsiLength from front to rear, width at the widest body point, and maximum height. Cable and receiver are excluded. Approximate maker figures are qualified in source notes. Logitech pages often label the front-to-rear length Height and the body height Depth, so map the figures by size.

Length124Maximum width66.5Maximum height42mm(4.9 × 2.6 × 1.7 in)1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists product size 124 * 66 * 42 mm. The drawing dimensions the widest point as 66.5 mm, which is stored.

Length127.1Maximum width63.9Maximum height39.9mm(5 × 2.5 × 1.6 in)6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: 127.1 × 63.9 × 39.9 mm.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 127.1×63.9×39.9 mm.

Grip widthiBody width where the thumb and opposite grip finger sit. This differs from maximum body width.

Not available

Not available

Mouse weight (claimed)iWireless mice include the battery. When the maker does not say whether a removable battery is in the weight, the published weight is stored and the source note says so. Wired mice exclude the cable. Source notes identify installed skates, colour, approximation, tolerance or a published bound.

55g(1.9 oz)1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists 55 g. No colour or coating difference is stated.

49g(1.7 oz)2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release approximate 49 g Black, 50 g White. Cable/dongle excluded in official technical spec record.

Box dimensions

Not available

Not available

Packed weightiMouse, packaging and included accessories. Shipping-service weight is not evidence of packed weight.

Not available

Not available

Sensor

9 of 20 differ

Marketed sensor nameiMaker’s sensor branding, or reviewer identification when the maker does not publish one. The physical part number is recorded separately.

PAW NEXT I1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists Sensor IC PAW NEXT I with MCU Nordic 54H20.

Focus Pro 50K Optical Sensor Gen-31Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Focus Pro 50K Optical Sensor Gen-3.

Published sensor brandiSensor brand or trademark named by the source, which may be the mouse maker’s proprietary branding. Physical silicon manufacturer and part number are separate facts.

PixArt6Reviewrtings.com/mouse/reviews/lamzu/thorn-v2Read 14 October 2026Public review summary names a PixArt PAW NEXT 1 sensor. The maker writes PAW NEXT I. Measured results on the page are behind the paywall and are not used.

Razer1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Published Focus Pro 50 K Optical Sensor Gen-3 proprietary branding. Physical sensor OEM is not asserted.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Focus Pro 50K Optical Sensor Gen-3.

Physical sensor part numberiExact physical sensor family or part identified by the maker or an exact-model reviewer. Do not infer it from DPI, speed or a sibling mouse.

Not available

Not available

Sensor type

Optical1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Optical2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: Focus Pro 50 K Optical Sensor Gen 3.

Maximum configurable DPIiMaximum selectable DPI with the documented firmware. Later firmware increases are noted in sources. The sensor chip’s theoretical maximum is not the mouse’s maximum.

50,000DPI1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic states 50K DPI with 1-DPI step increments.

50,000DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 50000 DPI.

Minimum configurable DPIiLowest selectable sensitivity on this mouse. Factory presets do not establish its minimum.

Not available

100DPI5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Performance UI screenshot on printed p 19 shows minimum 100 and maximum 50000 DPI.

DPI adjustment stepiSmallest documented configuration increment, not the spacing between factory presets.

1DPI1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

1DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20261-DPI step adjustments in Synapse

Maximum DPI stagesiMaximum number of selectable sensitivity presets saved at once, not the number of distinct supported DPI values.

Not available

55Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 19: create up to five sensitivity stages.

Default DPI presetsiFactory preset sensitivity values for the exact model and firmware. Source notes distinguish different factory profiles.

Not available

400, 800, 1,600, 3,200, 6,400DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: factory DPI settings 400, 800, 1600 (default), 3200 and 64005Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 7 DPI and indicator chart: factory 400/800/1600/3200/6400 DPI shown by LED colour.

Separate X and Y DPI

Not available

Not available

Tracking speed (claimed)iMaker or published product specification, in inches per second. If the source says more than a value, that numeric threshold is stored and qualified in the source note. Do not read it as an exact ceiling.

880IPS1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic states 880 IPS.

930IPS1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 930 IPS.

Tracking acceleration (claimed)iMaximum tracking acceleration in multiples of gravitational acceleration, not mouse weight. A source saying more than a value is retained as a qualified threshold in the source note.

80G1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic states 80g acceleration.

90G1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 90G.

Lift-off distance settingsiOnly documented selectable lift-off values, or one documented fixed value. A minimum, approximate measured result or unquantified range does not establish a complete option list.

Not available

Not available

Separate lift and landing distance

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Asymmetric cut-off with up to 26 levels

Surface calibrationiSensor calibration for a tracking surface. Adjustable lift-off distance or copying sensitivity from another mouse alone does not establish this feature.

Yes1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic lists Dynamic Surface Calibration.

Yes14Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 8 October 2026Smart Tracking automatically calibrates lift-off distance across surfaces. Rotation Tool is separate and is not treated as angle snapping. Frame Sync is not copied into the Motion Sync field.

Motion SynciWhether sensor motion synchronization is supported. Polling-rate restrictions and default state belong in source notes.

Not available

Not available

Angle snapping

Not available

Not available

Ripple control

Not available

Not available

Tracks on glass

Not available

Not available

Sensor position

Forward7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Sensor table lists position Forward (55%).

Not available

Performance

4 of 8 differ

Documented polling rates by connectioniOne row per documented usable rate and connection. Receiver and firmware requirements are noted. Maximum-only claims do not imply all intermediate settings or the same ceiling over USB.

ALAMZU Thorn V2

Data connection	Polling rate (Hz)	Receiver requirement
USB (wired)	8,000	Not available
2.4 GHz	8,000	Included Orbiter receiver

Source1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Graphic says Native Wired and Wireless Dual 8K, polling rate 8000 Hz, ultra-low latency up to 0.125 ms. Lower rates are not listed. The Orbiter receiver is in the box.

BRazer Viper V4 Pro

Data connection	Polling rate (Hz)	Receiver requirement
2.4 GHz	125	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	500	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	1,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	2,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	4,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	8,000	Included HyperSpeed Wireless Gen-2 dongle
USB (wired)	8,000	Not available

Source1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Tech specs: up to 8000 Hz in both wireless and wired modes. The dongle LED legend lists 8000, 4000, 2000, 1000, 500 and 125 Hz5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 9 and 19, Performance UI screenshot: radio polling options 125/500/1000/2000/4000/8000. Wired maximum 8000 independently stated in maker Specs. Lower wired choices not inferred.

Max polling rate

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (wired)

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (2.4 GHz)

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (Bluetooth)

Not available

Not available

Claimed click latencyiAbsolute click-latency claim from the maker. A relative improvement is not absolute latency. Source notes give polling mode and whether the number is an average, bound or best case.

0.176ms1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Optical Switches panel states click latency 0.176 ms. Connection and polling rate are not stated.

0.204ms2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release averages as low as 0.204 ms clicks, true 8000 Hz in wired/wireless. This is a best-case maker average, not an unconditional measurement.

Adjustable debounce

Yes8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review says debounce time is adjustable. The available values are not stated.

Not available

Minimum debounceiLowest documented debounce setting or fixed main-switch debounce delay. Click response time or total click latency is not the same quantity.

Not available

0ms2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: optical Gen 4 main switches operate with zero debounce delay.

Measured

1 of 7 differ

Latency per connection (measured)iReviewer measurements for an identified connection, polling rate, firmware and settings. Click and sensor latency use different test methods and are not interchangeable.

Not available

Not available

DPI deviation (measured)iReviewer measurement of deviation from a specified DPI value. Test DPI, travel speed, distance and method belong in source notes.

Not available

Not available

Lift-off distance (measured)iReviewer-measured lift-off height at the lowest setting, on the specified surface. Do not store the maker’s selectable LOD here.

Not available

Not available

Main click force (measured)iReviewer-measured main-button actuation force in gram-force. Not the mouse weight and not an electrical latency measure.

Not available

Not available

Weight (measured)iReviewer scale measurement. Include battery for wireless mice and exclude cable for wired mice. Source notes identify colour and installed skates.

Not available

48.9g(1.7 oz)4Measurementrtings.com/mouse/reviews/razer/viper-v4-proRead 30 September 2026Default weight 48.9 g, Black unit, methodology v 1.5.2

Battery life (measured)iReviewer-measured runtime from a stated test, not a claim, forecast or extrapolation. Polling, lighting and other power settings must be identified.

Not available

Not available

Hand size fitiExact-model reviewer fit assessment. Source notes define the hand-length bands and tested grip. Do not translate general praise into every size fitting.

Not available

Not available

Switches

5 of 11 differ

Main switch typeiActuation technology for the left and right main buttons. Hybrid means optical-mechanical. Inductive analog switches detect travel by induction.

Optical1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists left and right buttons as Optical Switches.

Optical1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Published main-switch brandiBrand named for the main switches. Proprietary Razer, Pulsar, Glorious or Logitech branding does not identify the physical contract manufacturer.

Kailh7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Switch table lists Kailh Optical V2. Retailer and review pages also name Kailh optical switches. LAMZU names only Optical Switches.

Razer1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Main switch model

Kailh Optical V27Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Switch table lists Kailh Optical V2.

Optical Mouse Switches Gen-41Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Main switch rated lifeiManufacturer or component rating for the main left/right switches, in millions of actuations. This is not a whole-mouse durability measurement.

150million7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Switch table lists rated life 150M. LAMZU does not state a rating.

100million1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Switch lifecycle: 100-million clicks7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Hot-swap main switchesiMain switches can be changed without soldering. Opening the case or using a switch pack can still be required.

Not available

Not available

Adjustable click actuationiThe point where a main click registers can be configured. Debounce adjustment changes timing, not actuation travel.

Not available

Not available

Separate main buttons

Not available

Yes5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2 body drawing shows separate left/right button plates.

Side switch model

Not available

Not available

Middle click switch

Not available

Not available

Scroll encoder type

Optical1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists Optical encoder.

Optical2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: Optical Scroll Wheel.

Scroll encoder

RAESHA Optical7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Encoder table lists RAESHA Optical. The maker's encoder graphic shows a RAESHA part.

Not available

Buttons and scroll wheel

8 of 13 differ

Physical button inputsiIncludes left/right, wheel click, each wheel-tilt direction, DPI/report-rate/profile buttons and a wheel-mode pushbutton. Excludes scroll rotation, power sliders and connection sliders. A connection pushbutton, such as Logitech Easy-Switch, counts even when the maker's own count leaves it out. A button that only switches power does not. Counts each physical input once.

Not available

63Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Button quantity 6. PC Gamer lists 5 buttons, likely leaving out the bottom DPI button5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: separate main plates, two left side buttons, central wheel click and bottom Power/DPI button make 6 inputs.

Programmable buttonsiNumber of physical button inputs that can be remapped. Excludes scroll-up/down actions, alternate software layers and non-programmable mode controls.

Not available

61Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 6 programmable buttons.

Side buttonsiButtons on the thumb-facing side walls, including a side DPI-shift button. Top buttons beside the main click plate and bottom setting buttons are excluded.

21Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Product photos show two side buttons.

25Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2, buttons 4 and 5 in body layout.

Side buttons on

Left1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Product photos show both side buttons on the left wall.

Left5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2 body layout shows two buttons on the left.

DPI buttoniA physical pushbutton that changes sensitivity. A button shared with power or report rate still counts. Software-only switching does not.

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: bottom Power/DPI button.

DPI button position

Not available

Bottom1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: the button at the bottom toggles power and DPI by default and is programmable5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: the Power/DPI button is on the bottom.

Profile buttoniA dedicated physical profile-switch button. A remappable input that could be assigned this action does not prove a dedicated control.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Dedicated DPI-shift buttoniDedicated physical control for temporarily switching sensitivity while held. A software-remappable input is not automatically a dedicated sniper control.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Dedicated gesture buttoniA dedicated physical gesture control. Assigning a gesture action to a remappable button does not establish a separate gesture button.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Scroll wheel

Notched7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Encoder table lists 24 steps and Free spin: No. No tilt is listed.

Notched6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: 24-step Optical Scroll Wheel.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 24-step Optical wheel.

Scroll mode switchiHow the wheel changes between notched and free-spin modes. None means there is no such mode-switch mechanism.

None7Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Encoder table lists Free spin: No, so there is no second scroll mode.

None6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Specs tab and complete guide layout show a 24-step wheel and no mode-change control.

Separate thumb wheeliA separate side wheel operated by the thumb. Tilting the central scroll wheel does not count.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Scroll wheel material

Not available

Not available

Build

4 of 6 differ

Shell material

Plastic, polymer unspecified8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review calls the shell lightweight plastic.9Reviewgamersegment.com/lamzu-thorn-v2-mouse-reviewRead 14 October 2026Spec list: Body material plastic.

Not available

Surface finishiPublished surface finish, such as matte or textured. Soft-feel wording does not establish rubber material or a chemical coating.

Matte8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review describes a skin-friendly nano coating with a matte finish on the white version. LAMZU names the coating Nano coating. Matte is the finish shown in the maker photos for all colours.9Reviewgamersegment.com/lamzu-thorn-v2-mouse-reviewRead 14 October 2026Page says the matte plastic is non-slip even in sweaty hands.

Not available

Installed feet materialiMaterial of the factory-installed skates, excluding separately supplied replacements or dot skates. Virgin PTFE means additive-free or explicitly virgin-grade PTFE.

PTFE8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review says PTFE skates sit around the edges of the underside.9Reviewgamersegment.com/lamzu-thorn-v2-mouse-reviewRead 14 October 2026Page says PTFE glides.

PTFE1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026100% PTFE7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 100% PTFE feet.

Installed skate piecesiNumber of separate factory-installed skate pieces, including a sensor ring. Excludes spare skates supplied in the box.

Not available

35Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 2 underside drawing: front pad, rear pad and sensor ring.

Feet shapeiGeometry of the installed skates. Pads plus a sensor ring are mixed. Separate dots are dots.

Not available

Mixed5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 2 underside drawing: pads plus sensor ring.

Feet thickness

Not available

Not available

Cable

1 of 5 differ

Cable

Braided9Reviewgamersegment.com/lamzu-thorn-v2-mouse-reviewRead 14 October 2026Page says the box has a braided USB cable.

Not available

Cable length

Not available

Not available

Detachable cableiThe cable unplugs from an external socket on the mouse without opening it. A service-replaceable internal cable does not count.

Yes1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Wired mode uses the USB-C socket on the mouse.

Yes3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one detachable USB Type A-to-C cable.

Port on mouseiExternally accessible data/charging socket on the mouse. A fixed cable is none. USB-C describes the connector, not a transfer-speed version.

USB-C1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Product photos show a USB-C port at the front of the mouse.

USB-C3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: USB-C mouse port.

Cable host plugiConnector on the computer end of the supplied or fixed cable, independent of the mouse-end connector.

USB-A9Reviewgamersegment.com/lamzu-thorn-v2-mouse-reviewRead 14 October 2026Cable is Type-A to Type-C per the EnosTech review. The Type-A end is the computer end.

USB-A3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one USB Type A-to-C cable.

Connectivity

3 of 13 differ

ConnectionsiConnections that carry mouse input data. A USB cable used only for charging does not establish wired USB operation.

USB (wired), 2.4 GHz1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists Connect Way Wireless/Wired. The box text says 2.4 GHz Wireless / Wired. No Bluetooth is listed.

2.4 GHz, USB (wired)1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer HyperSpeed Wireless Gen 2 and Wired.

Wireless technology

Not available

Razer HyperSpeed Wireless Gen-21Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer HyperSpeed Wireless Gen 2 and Wired.

BluetoothiThe version number only, such as 5.1. LE and Low Energy are left out. A source that names only Bluetooth Low Energy gives no version.

Not available

Not available

Saved Bluetooth pairing slotsiNumber of Bluetooth hosts whose pairing the mouse remembers. A limit of one concurrently connected host does not establish the number of saved slots.

Not available

Not available

Switchable host devicesiNumber of host devices selectable through the documented mouse controls without manually moving a data cable. Not the number of physical receivers or simultaneous active links alone.

Not available

Not available

Device switching

Not available

Not available

Receiver host connectoriHost plug on the included small receiver. A larger cabled receiver is described in source notes. This differs from the charging cable’s plug.

Not available

Not available

Receiver storage in mouse

Not available

Not available

Receiver extender includediAn included adapter, dock or cabled receiver arrangement moves the receiver closer to the mouse. A charging-only adapter does not count.

Yes8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review describes the Orbiter Receiver with a USB-C port on the rear, so it sits on a cable on the desk. LAMZU's package picture shows the receiver with its cable.

Yes15Reviewtechradar.com/computing/mice/razer-viper-v4-pro-reviewRead 8 October 2026Included hemispherical receiver connects to the PC through the supplied USB-C to USB-A cable, allowing it to sit near the mouse. No separate compact receiver extender is claimed.

Receiver pairing sharediA receiver can pair with another supported device, such as a keyboard, at the same time. This does not mean the mouse switches between computers.

Not available

Not available

Wireless rangeiPublished range and test conditions. A recommended receiver distance or minimum reliable range is not an exact maximum.

Not available

Not available

Basic mouse OS supportiOperating systems supported for basic input. Configuration software support is listed separately and may require a newer OS version.

Not available

Windows, macOS3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Hardware platform: Mac, PC5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 4 system requirements: Synapse needs Windows 11 or later, or macOS 15 or later on Apple Silicon M-series. Synapse Web is named separately by the launch release.

ConsolesiConsole families explicitly supported. Source notes identify exact consoles, games and reduced polling or software functions.

Not available

Not available

Battery

8 of 17 differ

Battery type

Not available

Li-ion5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide printed p 32: the Viper V4 Pro contains a Li-ion rechargeable battery.

Disposable battery countiNumber of disposable cells, such as AA or AAA. Do not use this field for internal rechargeable cells.

Not available

Not available

Battery capacityiPublished or physically identified internal battery capacity. Do not calculate mAh from claimed runtime or compare capacities across unverified hardware revisions.

300mAh1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Specification graphic lists 300 mAh.

Not available

User-replaceable batteryiBattery replacement is a supported user procedure. The ability to open and modify the mouse does not establish this feature.

Not available

Not available

Battery life by mode (claimed)iOne manufacturer or published product claim per documented connection, polling rate and lighting condition. Omit unstated conditions. Source notes identify performance, switch and haptic modes and whether runtime is up to a value.

ALAMZU Thorn V2

Connection	Polling rate (Hz)	Claimed runtime (h)
2.4 GHz	8,000	30

Source8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review says LAMZU rates about 30 hours at 8,000 Hz. The connection is not named and 2.4 GHz is assumed since that is the only wireless mode. Stored as about 30 hours.

BRazer Viper V4 Pro

Connection	Polling rate (Hz)	Claimed runtime (h)
2.4 GHz	1,000	180
2.4 GHz	8,000	45

Source7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026Normal public View All Specifications dialog: up to 180 hours at 1000 Hz and 45 hours at 8000 Hz.

Battery life (up to)iManufacturer estimate of days of normal use between full charges. This includes periods when the mouse is idle. It is not continuous runtime. Source notes preserve usage conditions and qualifiers when published. Do not convert this estimate to continuous hours.

Not available

Not available

Battery life (normal use)iManufacturer estimate of calendar months of normal use between charges or battery replacements. It is not continuous runtime. Source notes retain approximate, up-to, or-more and operating-mode qualifiers. Do not convert this estimate to continuous hours.

Not available

Not available

Longest battery life

30h=CalculatedFrom Battery life by mode (claimed)

180h=CalculatedFrom Battery life by mode (claimed)

Battery life at 1000 HziLongest stored claim explicitly at 1000 Hz over 2.4 GHz. A claim without a confirmed polling rate is excluded.

Not available

180h=CalculatedFrom Battery life by mode (claimed)

Battery life on Bluetooth

Not available

Not available

Charging port

USB-C1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026USB-C port charges and connects the mouse in wired mode.

USB-C3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026USB-C charging5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: charging through the USB-C mouse port.

Full charge timeiClaimed time from empty to full charge, in minutes. Approximation and charging setup are stated in source notes.

Not available

240min5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 5: about 4 hours from completely depleted battery. Approximate claim converted exactly to minutes.

Quick charge

Not available

Not available

Use while chargingiMouse input works while the internal battery charges through the documented wired or dock arrangement.

Not available

Yes5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide pp 5–6: USB charging connection and Wired Mode use same included Type-A-to-C cable.

Charging system compatibilityiNamed wireless charging pad or contact dock. Source notes distinguish inductive pads from pogo-pin contact charging.

Not available

Not available

Charging dock included

Not available

Not available

Battery indicator

Not available

LED1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026LED on the dongle shows battery level5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 7 DPI and indicator chart: configurable dongle DPI and battery LED indicators. Status LED colours are not decorative RGB.

Lighting

2 of 4 differ

Decorative RGB lightingiUser-configurable decorative lighting. A multicolour status, DPI or battery indicator alone is not decorative RGB.

Not available

No6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: RGB Lighting None.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: RGB None.

Decorative lighting zonesiNumber of independently controlled decorative lighting zones. Status indicator LEDs are excluded.

Not available

Not available

Lighting sync

Not available

Not available

DPI indicator

Not available

LED5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 7: DPI stages indicated by mouse LED colours. Dongle indicators can also be configured for DPI.

Software

7 of 9 differ

Software

LAMZU Aurora1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Page shows the LAMZU Aurora Driver.

Razer Synapse1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Configuration software platformsiPlatforms explicitly supported for configuring this exact model. Basic input compatibility and availability of a generic app on another platform do not establish model support.

Web4Maker product pagelamzu.com/blogs/faq/what-is-auroraRead 14 October 2026LAMZU FAQ calls Aurora its latest web driver. The compatible-mice list does not name the Thorn V2, but the Thorn V2 page shows the Aurora Driver.

Windows, macOS, Web2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Razer Synapse Web for browser tuning without installing software3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Razer Synapse 4 compatible on PC and Mac5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 4: Windows 11 or later, macOS 15 or later on Apple Silicon M-series. Synapse Web announced separately.

Onboard memoryiDocumented settings remain available without configuration software running. Which settings persist is stated in source notes.

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Onboard Memory Profiles 1.

Onboard profilesiMaximum distinct hardware-stored profiles. Software game profiles and factory preset profiles do not establish this maximum.

Not available

11Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026One onboard profile7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Onboard Memory Profiles 1.

Macros

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20266 programmable controls, from essential commands to complex macros

Macros stored onboardiMacros themselves execute from mouse memory without the configuration app. Onboard DPI or button assignments alone do not prove onboard macros.

Not available

Not available

Button remapping

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Per-app profiles

Not available

Not available

User firmware updatesiA public user-accessible updater or documented software firmware-update procedure exists for this exact model.

Not available

Yes6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Official Drivers & Downloads list Viper V4 Pro firmware updater v 1.04.01_r 1, 23 June 2026.

In the box

3 of 4 differ

In the boxiDocumented contents of the specified colour or bundle. Installed parts and optional extras are distinguished in source notes.

Gaming Mouse, Velvet bag, Orbiter receiver, V2 Mouse Grip, Big PTFE Skates, Round Dot PTFE Skates, User Manual1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Package List: Gaming Mouse, Velvet bag, Orbiter receiver, V2 Mouse Grip, Big PTFE Skates, Round Dot PTFE Skates, User Manual, each x 1.

Razer Viper V4 Pro, Razer HyperSpeed Wireless Gen-2 dongle, USB Type A to Type C cable, Razer Mouse Grip Tape, Important product information guide5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide pp 2–3, What’s Inside. Includes previously omitted information guide.

Cables included

ALAMZU Thorn V2

Type	Cable count
USB Type-A to Type-C cable	1

Source8Reviewenostech.com/lamzu-thorn-v2-55g-gaming-mouse-reviewRead 14 October 2026Review lists a USB Type-A to USB Type-C cable. LAMZU's pictures show a braided cable next to the receiver. The Package List text does not name it.

BRazer Viper V4 Pro

Type	Cable count
USB Type A to USB Type C	1

Source3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one detachable USB Type A-to-C cable.

Extra skates includediAn extra usable skate set is supplied separately from installed skates, including an alternative dot set. Factory protective film is not a spare skate.

Yes1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Package List has Big PTFE Skates and Round Dot PTFE Skates as separate items, in addition to the skates installed on the mouse.

Not available

Grip tape

Yes1Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026Package List has V2 Mouse Grip x 1. LAMZU sells its Mouse Grip as grip tape.

Yes3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, What’s Inside: Razer Mouse Grip Tape included.

Links

Not compared

Product page

lamzu.com/products/lamzu-thorn-v21Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

www.razer.com/gaming-mice/razer-viper-v4-pro1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Spec sheet

lamzu.com/products/lamzu-thorn-v21Maker product pagelamzu.com/products/lamzu-thorn-v2Read 14 October 2026

Not available

Manual

Not available

dl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdf5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Official support User Guides -> English link. Exact maker 34-page Master Guide, read as a public PDF.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year3Maker product pagelamzu.com/pages/warranty-informationRead 14 October 20261 year of repairs for products bought from lamzu.com. Terms can differ by region and model.

2years1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026US page: 'Get up to 2 years of warranty'

Both are also in the API. Back to all mice.