Keyboards / Compare

Logitech G915 X LIGHTSPEED vs Razer BlackWidow V4 X

A

Product A: Logitech

G915 X LIGHTSPEED

76 of 164 known

Change Logitech G915 X LIGHTSPEED

Compare the Razer BlackWidow V4 X with

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B

Product B: Razer

BlackWidow V4 X

69 of 164 known

Change Razer BlackWidow V4 X

Compare the Logitech G915 X LIGHTSPEED with

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All 164 fields

Every value links to where we found it.

Only differences

ALogitech G915 X LIGHTSPEED

BRazer BlackWidow V4 X

General

6 of 9 differ

Series

G915 X5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026The G915 X Series has a full-size LIGHTSPEED, a LIGHTSPEED TKL and a wired model. The TKL and wired models are separate products

BlackWidow V44Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 2026

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

YR0069, 920-012696, 920-012704, 920-012670, 920-012685, 920-012697, 920-012705, 920-012671, 920-012706, 920-012672, 920-012673, 920-012707, 920-012674, 920-012708, 920-012675, 920-012677, 920-012679, 920-012698, 920-012709, 920-012676, 920-012686, 920-012687, 920-012688, 920-012689, 920-012690, 920-012682, G915WLX-TCBK, 920-012693, G915WLX-TCWH, 920-012701, G915WLX-LNBK, 920-012712, G915WLX-CKBK1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Part numbers from the US page (4) and the UK page en-gb (20). YR0069 is the keyboard's regulatory model number from the support spec page2Maker product pagelogitechg.com/en-gb/shop/p/g915-x-wireless-mechanical-gaming-keyboardRead 30 September 20263Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"Keyboard YR0069", receiver CU002111Press releasepress.logicool.co.jp/ja-jp/g915x-pro-x-tkl-rapidRead 30 September 2026

RZ03-0470, RZ03-04700200-R3U1, RZ03-04701900-R3U15Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026

GTIN / EAN

097855195166, 097855195029, 097855195005, 0978551949929Retailer pagebhphotovideo.com/c/product/1851732-REG/logitech_g_920_012670_g915_x_lightspeed_low_profile.htmlRead 30 September 2026Exact 920-012670 product page UPC 097855195005. Other original codes appeared in search excerpts but full source was unavailable.10Retailer pageadorama.com/logitech-g915-x-lightspeed-wireless-gaming-keyboard/p/lo920012704Read 30 September 2026Indexed UPC Codes table: black GL Red 097855195166, black GL Blue 097855195029, white GL Brown 097855194992. Black tactile 097855195005 is separately confirmed at B&H. Full Adorama page returned 403 and was not retried.

Not available

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

17 September 20245Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026Logi Play, Paris and Shanghai, September 17th, 2024

18 July 20234Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 2026

Status

Available1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026US page shows $259.99 with add to cart. The price was raised after launch, the launch MSRP is in the press release

Available5Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026Exact Black standard US keyboard remains offered in maker store.

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

Not available

Not available

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.

$229.995Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026"The G915 X LIGHTSPEED full-size keyboard (LINEAR, TACTILE & CLICKY) - US MSRP $229.99"

$129.994Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 2026Exact V4 X launch MSRP USD 129.99.

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

€149.994Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 2026Exact V4 X European launch MSRP EUR 149.99. Tax treatment not separately stated.

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

US, GB, JP1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Sold on the Logitech G US and UK stores2Maker product pagelogitechg.com/en-gb/shop/p/g915-x-wireless-mechanical-gaming-keyboardRead 30 September 202611Press releasepress.logicool.co.jp/ja-jp/g915x-pro-x-tkl-rapidRead 30 September 2026

Not available

ColoursiThe maker's own colour names

Black, White1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 20265Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026"All wireless options are black and white"

Black5Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026

Segment

Gaming1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Listed under Gaming Keyboards

Gaming1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Sold asiParts fitted when sold. A complete keyboard includes switches and keycaps. Barebones includes neither.

Complete1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Sold with GL switches and keycaps fitted, in Linear, Clicky and Tactile styles

Complete1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Layout

5 of 12 differ

Form factoriLayout size or shape. A percentage describes the layout, not the number of keys.

Full size1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 20264Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English setup guide pages 3-5 show the complete full-size keyboard with numeric keypad and nine G keys. It is not the separate TKL model.

Full size3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026

Layout standardiPhysical key layout standards sold for this model. Regional language names are listed separately.

ANSI, ISO, JIS11Press releasepress.logicool.co.jp/ja-jp/g915x-pro-x-tkl-rapidRead 30 September 2026

ANSI5Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026US Layout and ANSI gallery reference.

Regional layouts

English US (QWERTY), German (QWERTZ), French (AZERTY), Swiss (QWERTZ), Nordic (QWERTY), English UK (QWERTY), Spanish (QWERTY), Italian (QWERTY), English International (QWERTY), Japanese1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Layout names from the US and UK pages, verbatim2Maker product pagelogitechg.com/en-gb/shop/p/g915-x-wireless-mechanical-gaming-keyboardRead 30 September 202611Press releasepress.logicool.co.jp/ja-jp/g915x-pro-x-tkl-rapidRead 30 September 2026

US Layout5Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026

Keys in regional layoutiPhysical typing and function keys in the stated regional layout. Separate media buttons, macro buttons and rotary controls are excluded. A Touch ID or Lock key in a key row counts, as on Apple keyboards.

Not available

Not available

Key legends for

Not available

Windows2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Maker layout map has Windows legends.

Numpad

Yes4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English p. 5 full-size keyboard diagram includes number pad.

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Function row

Yes4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English p. 5 keyboard features diagram includes F1-F12 function row.

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Dedicated arrow keys

Yes4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English p. 5 keyboard features diagram includes separate arrow cluster.

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Navigation keysiAvailability of Home, End, Page Up and Page Down as dedicated keys or through an Fn layer.

Full4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English p. 5 diagram shows the full Home, End, Page Up and Page Down navigation cluster.

Full2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Key stagger

Not available

Row-staggered2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Bottom row

Not available

Not available

Low profile

Yes1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Not available

Switches

10 of 25 differ

Switch sensing technologyiKey sensing technology. Hall effect and TMR are different sensor types. A mixed board is identified explicitly. Magnetic switch housing alone does not identify the sensor.

Low-profile mechanical1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"Low-profile GL mechanical switches"

Mechanical1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Switch feel

Linear, Tactile, Clicky1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Clicky, Silent linear1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Switch maker

Logitech1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Product features and press release identify Logitech GL mechanical switch design.

Razer1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Switch models

GL Linear, GL Tactile, GL Clicky1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Maker describes GL mechanical switches in Linear, Tactile, Clicky styles. Retail GL Red/Brown/Blue names are not needed for identity.

Razer Green Mechanical Switches Gen-3, Razer Yellow Mechanical Switches Gen-31Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026Standard Black model is sold with Green Clicky and Yellow Linear switches. Licensed color editions are not separately cataloged.

Switch stem

MX cross5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026Maker launch release p. 2 explicitly replaces old hook-style with cross-style stem.

MX cross7Maker product pagerazer.com/gaming-keyboards-accessories/razer-mechanical-switchesRead 23 October 2026Maker Gen-3 switches use cross stems with dual side walls.

Actuation forceiForce at the point where a key registers. Initial spring force is not actuation force. Adjustable switches require a stated actuation setting.

43 to 48gf1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 20262Maker product pagelogitechg.com/en-gb/shop/p/g915-x-wireless-mechanical-gaming-keyboardRead 30 September 20263Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 20269Retailer pagebhphotovideo.com/c/product/1851732-REG/logitech_g_920_012670_g915_x_lightspeed_low_profile.htmlRead 30 September 202610Retailer pageadorama.com/logitech-g915-x-lightspeed-wireless-gaming-keyboard/p/lo920012704Read 30 September 202611Press releasepress.logicool.co.jp/ja-jp/g915x-pro-x-tkl-rapidRead 30 September 2026

45 to 50gf4Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 20265Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 20266Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04701900-R3U1Read 23 October 20267Maker product pagerazer.com/gaming-keyboards-accessories/razer-mechanical-switchesRead 23 October 2026

Bottom-out forceiForce at the end of the switch travel. It is not the initial spring force or the tactile peak.

Not available

Not available

Tactile bump forceiPeak force of the tactile bump. It is not the force at initial movement or at bottom-out.

Not available

Not available

Actuation pointiDistance before a key registers. For adjustable boards, the default profile or setting is stated in the source note.

1.3mm1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"Actuation Point: 0.05 in (1.3 mm)". The support spec page gives 1.3 mm±0.30 mm

1.2 to 1.9mm4Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 20265Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 20266Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04701900-R3U1Read 23 October 20267Maker product pagerazer.com/gaming-keyboards-accessories/razer-mechanical-switchesRead 23 October 2026

Total travel

3.2mm1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"Total travel distance: 0.12 in (3.2 mm)". Support page: 3.2±0.25 mm

3.5 to 4mm4Press releaserazer.com/newsroom/product-news/blackwidow-v4-and-blackwidow-v4-xRead 23 October 20265Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 20266Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04701900-R3U1Read 23 October 20267Maker product pagerazer.com/gaming-keyboards-accessories/razer-mechanical-switchesRead 23 October 2026

Rated keystrokes

Not available

100million7Maker product pagerazer.com/gaming-keyboards-accessories/razer-mechanical-switchesRead 23 October 2026Green and Yellow table explicitly states 100 million. Current V4 X FAQ separately corroborates 100 million.

Factory-lubed switches

Not available

Not available

Adjustable actuation

Not available

Not available

Actuation rangeiSelectable actuation distances. These are settings, not a measured usable travel range.

Not available

Not available

Actuation stepiSmallest documented increment between selectable actuation settings.

Not available

Not available

Per-key actuationiActuation can be configured individually for supported keys. The source note identifies any excluded keys.

Not available

Not available

Rapid trigger

Not available

Not available

Minimum rapid trigger movementiSmallest selectable movement used to reset or reactivate a key. This is a setting, not measured accuracy.

Not available

Not available

Multi-action keys

Not available

Not available

SOCD handling

Not available

Yes1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026Razer Snap Tap through current Synapse 4. Not claimed as a 2023 launch feature.

Analog inputiCan send variable gamepad or joystick input. Magnetic sensing or adjustable actuation alone does not establish analog output.

Not available

Not available

Hot-swap socketsiSwitches can be replaced without soldering. Magnetic compatibility must be checked separately.

None6Reviewpcgamer.com/hardware/gaming-keyboards/logitech-g915-x-lightspeed-reviewRead 30 September 2026Spec box: "Hot-swappable: no"

None9Retailer pagetarget.com/p/-/A-89156704Read 23 October 2026Target expert support answer explicitly identifies soldered switches and no hot-swap for exact V4 X.

Compatible switches

Not available

Not available

Stabilizers

Not available

Not available

Factory-lubed stabilizers

Not available

Yes1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Keycaps

1 of 5 differ

Keycap material

PBT5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 20266Reviewpcgamer.com/hardware/gaming-keyboards/logitech-g915-x-lightspeed-reviewRead 30 September 2026

ABS1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Legend method

Doubleshot5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026"double-shot, shine-through PBT"6Reviewpcgamer.com/hardware/gaming-keyboards/logitech-g915-x-lightspeed-reviewRead 30 September 2026Spec box: "Keycaps: Double-shot PBT"

Doubleshot1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Keycap profile

Not available

Not available

Keycap thickness

Not available

Not available

Shine-through legendsiLight passes through the legends. Translucent keycap sides alone do not count.

Yes5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 20267Reviewrtings.com/keyboard/reviews/logitech/g915-x-lightspeedRead 30 September 2026

Yes8Reviewarabgamerz.com/reviews/razer-blackwidow-v4-x-reviewRead 23 October 2026Review states RGB light passes through keycaps.

Performance

1 of 11 differ

Polling rate per connectioniDocumented report rates for each connection. Required receivers or optional adapters are identified in the row and source note.

ALogitech G915 X LIGHTSPEED

Connection	Polling rate (Hz)
USB (wired)	1,000

Source3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"USB Report Rate: Max: 1 ms", "USB Protocol: USB 2.0". Stored as 1000 Hz wired. No 2.4 GHz LIGHTSPEED report rate is published on any page found, so no 2.4 GHz row is stored

BRazer BlackWidow V4 X

Connection	Polling rate (Hz)
USB (wired)	1,000

Source3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026Exact V4 X technical table says up to 1000 Hz. It is USB wired only. The standard V4 and V4 Pro 8000 Hz values are excluded.

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (2.4 GHz)

Not available

Not available

Polling rate (Bluetooth)

Not available

Not available

Scan rateiHow often the keyboard reads its switches. A USB report rate does not establish a scan rate.

Not available

Not available

Input latency (claimed)iMaker-published input or response latency with conditions in the source note. Do not calculate this from polling rate.

Not available

Not available

Key rollover per connectioniKeys registered simultaneously over the stated connection. Connection is omitted if the source does not specify it.

Not available

Not available

Anti-ghosting

Not available

Yes3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for one tested setup per row. Settings and test method are stated in the source note. Missing conditions are not inferred.

Not available

Not available

Actuation point (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Total travel (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Operating force (measured)iReviewer-measured force at actuation. The switch and actuation setting are stated in the source note.

Not available

Not available

Typing noise (measured)iReviewer-measured A-weighted typing sound level. Measurement distance and conditions are stated in the source note.

Not available

Not available

Battery life (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iReviewer-measured keyboard weight without cable or wrist rest. The tested configuration is stated in the source note.

Not available

Not available

Connectivity

13 of 18 differ

Connections

USB (wired), 2.4 GHz, Bluetooth1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

USB (wired)2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Wireless technology

LIGHTSPEED1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Not available

Bluetooth

5.03Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"Connection Type: Dongle, Bluetooth 5.0, USB"

Not available

Bluetooth device slots

Not available

Not available

Devices it can switch betweeniDistinct device connections available for switching. Do not infer this by adding wireless modes or paired Bluetooth slots.

Not available

Not available

Device switchingiControl used to switch between paired device hosts. Connection-mode and OS switches are described separately.

Button4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026A LIGHTSPEED button and a Bluetooth button select the connection

Not available

Receiver connector

USB-A3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026The receiver section (mislabel led "Mouse Specifications") gives "Connection Type: USB 2.0 Type A" and "LIGHTSPEED wireless technology"

Not available

Receiver storage in keyboard

Yes12Reviewstuff.tv/review/logitech-g915-x-lightspeed-reviewRead 8 October 2026Full-size G915 X LIGHTSPEED review identifies the rear alcove for the supplied USB-A receiver.

Not available

Receiver shared with other devices

Yes8Maker product pagesupport.logi.com/hc/en-in/articles/7707694960663-Connect-two-LIGHTSPEED-devices-to-one-receiver-using-the-Device-Pairing-ToolRead 30 September 2026Compatible keyboard list includes G915 X(LIGHTSPEED, TKL). Receiver pairs one compatible mouse and one keyboard using G HUB device pairing.

Not available

Wireless range

Not available

Not available

Detachable cable

Yes1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026The USB-C data/charging cable is a separate item in the box and plugs into the USB-C port on the keyboard

No8Reviewarabgamerz.com/reviews/razer-blackwidow-v4-x-reviewRead 23 October 2026Exact review explicitly states non-detachable braided cable.

Port on keyboard

USB-C3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026

None8Reviewarabgamerz.com/reviews/razer-blackwidow-v4-x-reviewRead 23 October 2026Fixed integrated cable. No detachable keyboard input socket.

Cable plug

USB-A3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"USB A to C charging, data cable"

USB-A2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Cable

Not available

Braided8Reviewarabgamerz.com/reviews/razer-blackwidow-v4-x-reviewRead 23 October 2026

Cable length

1.8m1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Not available

USB passthrough

Not available

No3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026

Works withiSystems on which the keyboard works. Configuration software may have narrower system support.

Windows, macOS, ChromeOS, Android, iOS1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026System requirements: LIGHTSPEED on Windows 10 v.1809 or later and macOS X 10.11 or later. Bluetooth on Windows 11, macOS X 11, Chrome OS, Android 4.3 and iOS 10 or later

Not available

Consoles

Not available

Not available

Battery

9 of 16 differ

Battery type

Li-Po1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Not available

Number of batteriesiNumber of replaceable AA or AAA cells required. Internal rechargeable battery packs are not counted here.

Not available

Not available

Battery capacity

Not available

Not available

User-replaceable battery

No3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"Battery user replaceable? No"

Not available

Battery life per mode (claimed)iMaker estimates. Store one published native duration unit per row: hours, days or months. Days and months describe calendar use including idle time, not continuous runtime. Do not convert calendar estimates into hours. Connection, lighting and polling rate are included only when published. Brightness, workload, screen status, sleep settings and up-to qualifiers go in the source note.

ALogitech G915 X LIGHTSPEED

Connection	Lighting	Hours (h)
2.4 GHz	Max	36
Not available	On	90
Not available	Off	800

Source1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"LIGHTSYNC RGB @100% Brightness: Up to 36 hrs", "@50% Brightness: Up to 90 hrs", "RGB OFF: Up to 800 hrs". The press release says the 36 hours are on LIGHTSPEED. The 90 hour row is at 50% brightness. RGB must be turned off with the brightness button to reach 800 hours

BRazer BlackWidow V4 X

Not available

Longest battery life (claimed)iLongest maker estimate published in hours across the listed modes. Rows published in days or months do not contribute. Conditions can differ between products.

800h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, lighting offiLongest maker estimate published in hours with lighting off. Calendar-day and calendar-month estimates are not converted and do not contribute.

800h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, lighting oniLongest maker estimate published in hours with lighting enabled. Calendar-day and calendar-month estimates are not converted and do not contribute. Brightness and display conditions are stated in the source note.

90h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, backlight on (claimed)iLongest maker up-to estimate published in calendar days with backlighting enabled. Includes idle time and the source-defined usage pattern, not continuous runtime. Brightness, workload, connection and sleep conditions remain in the table and source note. Hours and months are not converted.

Not available

Not available

Battery life, backlight off (claimed)iLongest maker up-to estimate published in calendar months with backlighting off. Includes idle time and the source-defined usage pattern, not continuous runtime. Workload, connection and sleep conditions remain in the table and source note. Hours and days are not converted.

Not available

Not available

Charging port

USB-C4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Charging section shows the USB-C cable plugged into the keyboard

Not available

Full charge timeiPublished time for a full charge. Approximate times remain qualified in the source note.

Not available

Not available

Quick charge

Not available

Not available

Use while charging

Yes13Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 8 October 2026USB data/charging connection is documented alongside the active wired mode indicator and charging indicator. Keyboard functions remain available through the wired connection.

Not available

Solar charging

Not available

Not available

Battery indicator

LED3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026"Indicator Lights (LED): Battery, Capslock"4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Battery light pulses green when charging and shows red when the keyboard needs charging

Not available

Build

2 of 8 differ

Case material

Aluminum top plate (1.5 mm)5Press releases24.q4cdn.com/131595232/files/doc_news/2024/09/G915-X-PRESS-RELEASE-FINAL-1.pdfRead 30 September 2026"The aluminum top plate thickness was increased from 1.2 to 1.5 mm"

5052 aluminum alloy top case and plastic bottom case2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 20268Reviewarabgamerz.com/reviews/razer-blackwidow-v4-x-reviewRead 23 October 2026Exact review identifies aluminum upper and plastic lower case. Maker manual identifies 5052 alloy upper.

Plate material

Not available

Not available

Mount style

Not available

Not available

Flex cuts in PCB

Not available

Not available

Sound dampeningiDampening layers the maker or a review names. Foam whose position in the stack is not stated is foam. Films, pads and silicone parts that fit no other option are other.

Other12Reviewstuff.tv/review/logitech-g915-x-lightspeed-reviewRead 8 October 2026Reviewer describes extra layers of sound dampening material. Material and layer placement are unspecified, so no foam or plate classification is inferred.

PCB foam2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Typing anglesiKeyboard slope for each supported foot position, starting with the lowest. An adjustable-foot count does not establish angles. When the maker publishes only the angle with the feet out, that angle is stored alone.

Not available

Not available

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

1 of 7 differ

Backlight

RGB per key7Reviewrtings.com/keyboard/reviews/logitech/g915-x-lightspeedRead 30 September 2026Free verdict text: "Per-key addressable RGB lighting and shine-through keycaps". The measured test results are members-only and were not used

RGB per key1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

LED position

Not available

Not available

Lighting zones

Not available

Not available

Brightness levelsiSelectable onboard brightness steps. The source note states whether the off position is included.

Not available

Not available

Side or underglow lighting

Not available

Not available

Lighting sensors

Not available

Not available

Lighting sync

LIGHTSYNC RGB1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026LIGHTSYNC RGB, customisable through G HUB

Razer Chroma RGB1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

Controls

4 of 12 differ

Media keysiPlayback controlled by separate buttons, an Fn layer or a multifunction knob/rocker. Volume controls are listed separately, and knob presses are excluded from the separate media-button count.

Dedicated4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Media controls in the upper right corner: volume roller, skip back, play/pause, skip forward and mute

Fn layer2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 9 uses Fn+Insert/Home/Page Down for playback and Fn+Delete for mute.

Separate media buttonsiSeparate physical buttons for playback or mute, counted once each. Fn shortcuts, macro buttons, knob presses and roller presses are excluded.

44Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Skip back, play/pause, skip forward and mute. The volume roller is not counted

02Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Playback and mute are Fn shortcuts. Roller is separate and no dedicated physical media buttons appear on complete map.

Volume control

Roller1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Materials section: "Metal Roller". The press release calls it a cast iron volume roller

Roller2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Knobs

Not available

02Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026No rotary knob. The horizontal roller is represented by volume_control.

Programmable knob

Not available

Not available

Knob press

Not available

Not available

Separate macro keysiSeparate physical keys or buttons intended for macros. Excludes ordinary remappable keys, media buttons and a dedicated software-launch button.

91Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"Assign complex macros to one of 9 G keys"4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026English p. 5 diagram identifies G1-G5 left column plus G6-G9 top buttons. Nine physical G keys, distinct from playback buttons.

62Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Built-in screen

Not available

Not available

Touchpad

Not available

Not available

Fingerprint reader

Not available

Not available

OS mode switch

Not available

Not available

Windows key lock

Yes4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026The Game Mode button disables the Windows key and the Menu key

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Software

5 of 10 differ

Software

Logitech G HUB1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"(Optional) Internet access for Logitech G HUB Software"

Razer Synapse 43Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026Current support lists Synapse 4. Original manual describes Synapse 3.

Software runs on

Not available

Windows3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026

Open firmware

Not available

Not available

Onboard memory

Yes4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 5 explicitly states hybrid onboard storage for five profiles. Current EU page says None. Manual is preferred, with conflict reported for human review.

Onboard profilesiProfiles stored on the keyboard, including fixed defaults when the maker counts them. Software-only profiles are excluded.

34Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026"Three onboard profiles can be saved to G915 X LS", selected with FN+F2, F3, F4 in onboard mode

52Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 5 states hybrid storage for up to five profiles. Current EU tech table says onboard memory None, while the exact original manual says five. Manual is preferred under source hierarchy. No verified later hardware change found.

Macros

Yes1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Macros stored onboardiRecorded command sequences run from keyboard storage without the configuration app. Onboard lighting or remapping alone does not establish this.

Not available

Not available

Key remapping

Yes1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

Yes2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

LayersiTotal key mapping layers including the base layer. Lighting effect layers and profile slots are excluded.

Not available

22Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 13 Hypershift is a secondary key assignment set in addition to standard mapping.

User firmware updates

Not available

Yes3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026Exact RZ03-0470 firmware updater is listed as article 14183.

Ergonomics

0 of 4 differ

Wrist rest

None4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Box contents and keyboard diagram show no separate wrist rest. The maker box list does not include one.

None3Maker product pagemysupport.razer.com/app/answers/detail/a_id/13223Read 23 October 2026

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

2 of 6 differ

DimensionsiKeyboard body dimensions with fitted keycaps, without wrist rest and with feet folded. Any different measurement condition is stated in the source note. Width is the longest side, depth runs front to back and height is the thickness. Map by size when the maker's labels differ.

Width475Depth150Height22.6mm(18.7 × 5.9 × 0.9 in)1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Published as Height 22.6 mm, Width 150 mm, Length 475 mm. Stored as width 475, depth 150. The feature text and press release say 23 mm high, the spec value is kept3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026

Width466Depth152.5Height39.6mm(18.3 × 6 × 1.6 in)2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 5 approximate size 466 x 152.5 x 39.6 mm. Current support page gives 43.9 mm height. Manual takes priority.

Dimensions with wrist rest

Not available

Not available

Keyboard weightiKeyboard without cable or wrist rest. Weights that include accessories cannot be stored here. A cable that cannot be removed is included. Replaceable batteries are included, as built-in batteries are.

1,080g(2.4 lb)1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"Weight (w/o cable): 38.09 oz (1080 g)"3Maker product pagesupport.logi.com/hc/en-us/articles/25605931386007-Specification-G915-X-LIGHTSPEEDRead 30 September 2026

1,087g(2.4 lb)2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 5 approximate weight 1087 g. Cable is permanently attached and included. Current support page gives 1136.3 g. Manual takes priority.

Weight including wrist restiKeyboard plus supplied wrist rest, excluding packaging. The source note identifies any included cable.

Not available

Not available

Box dimensions

Not available

Not available

Box weightiOne retail package including its contents. A multi-unit shipping carton weight is excluded.

Not available

Not available

Certifications

None of 2 known

Platform certifications

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 3 differ

In the box

G915 X LIGHTSPEED gaming keyboard, LIGHTSPEED USB receiver, USB extender, USB-C data/charging cable, User documentation1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026Verbatim from the In the Box panel

Razer BlackWidow V4 X, Important Product Information Guide2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026Printed page 3 lists keyboard and Important Product Information Guide. Fixed cable is part of keyboard.

Cables included

ALogitech G915 X LIGHTSPEED

Type	Count
USB-C data/charging cable (USB-A to USB-C, 1.8 m)	1

Source1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026One USB-C data/charging cable in the box. The support page calls it "USB A to C charging, data cable", length 1.8 m

BRazer BlackWidow V4 X

Not available

Spare switches

Not available

Not available

Links

Not compared

Product page

www.logitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.html1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026

www.razer.com/gaming-keyboards/razer-blackwidow-v4-x5Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-x/RZ03-04700200-R3U1Read 23 October 2026

Spec sheet

Not available

www.razer.com/gaming-keyboards/razer-blackwidow-v4-x2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

Manual

www.logitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdf4Owner's manuallogitech.com/assets/70208/g915_x_lightspeed_qsg_amr.pdfRead 30 September 2026Setup guide for the Americas (English, French, Spanish, Portuguese)

dl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdf2Owner's manualdl.razerzone.com/master-guides/RazerSynapse3/BLACKWIDOWV4X-00000659-en.pdfRead 23 October 2026

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

0 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.

2years1Maker product pagelogitechg.com/en-us/products/gaming-keyboards/g915-x-wireless-mechanical-gaming-keyboard.htmlRead 30 September 2026"2-Year Limited Hardware Warranty" (US page)

2years1Maker product pagerazer.com/gaming-keyboards/razer-blackwidow-v4-xRead 23 October 2026

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