Comparison guide
Logitech G PRO X TKL LIGHTSPEED vs Razer BlackWidow V4 75%: which should you choose?
Logitech G PRO X TKL LIGHTSPEED and Razer BlackWidow V4 75% compared under one framework. One recorded specification difference is Battery life: 50 h on the Logitech G PRO X TKL LIGHTSPEED against 0 h on the Razer BlackWidow V4 75%. Specifications and their sources are recorded alongside.
Published: 2026-08-15 · Updated: 2026-09-21
Keyboards verdict
Undocumented scoring basis · overall score and upgrade ranking withheld. The table records stored representative configurations; confirm the configuration and price on the merchant page before buying.
- Logitech G PRO X TKL LIGHTSPEED: A tournament TKL with LIGHTSPEED, Bluetooth, wired connectivity, and PBT keycaps.
- Razer BlackWidow V4 75%: A wired 75% keyboard with hot-swap sockets, gasket mounting, 8,000Hz polling, and a wrist rest.
- Undocumented quality and performance advantages are not ranked
- Specification field coverage (not accuracy): 100%
Choosing between Logitech G PRO X TKL LIGHTSPEED and Razer BlackWidow V4 75% starts with the real use case and the problem to solve, not with which product is newer. No independent laboratory test is implied.
Core specifications on one baseline
| Item | Logitech G PRO X TKL LIGHTSPEED | Razer BlackWidow V4 75% | Delta |
|---|---|---|---|
| Layout | Tenkeyless 87-key Manufacturer official product page · check date not recorded | 75% with function row and arrows Manufacturer official product page · check date not recorded | Different |
| Switch type | GX Brown tactile mechanical Manufacturer official product page · check date not recorded | Razer Orange tactile mechanical Manufacturer official product page · check date not recorded | Different |
| Hot-swappable | No Manufacturer official product page · check date not recorded | Yes, 3/5-pin Manufacturer official product page · check date not recorded | Different |
| Wireless modes | LIGHTSPEED, Bluetooth, wired Manufacturer official product page · check date not recorded | None (USB-C wired) Manufacturer official product page · check date not recorded | Different |
| Battery life | 50 h Manufacturer official product page · check date not recorded | 0 h Manufacturer official product page · check date not recorded | -100% |
| Weight | 1012 g Manufacturer official product page · check date not recorded | 815 g Manufacturer official product page · check date not recorded | -19.5% |
| Width | 352 mm Manufacturer official product page · check date not recorded | 321 mm Manufacturer official product page · check date not recorded | -8.8% |
| Keycaps | Dual-shot PBT Manufacturer official product page · check date not recorded | Doubleshot ABS Manufacturer official product page · check date not recorded | Different |
| Backlight | LIGHTSYNC per-key RGB Manufacturer official product page · check date not recorded | Razer Chroma per-key RGB and underglow Manufacturer official product page · check date not recorded | Different |
| Color | Black | Black | Same |
| Region | KR | KR | Same |
| Model Code | 920-012127 | RZ03-0500 | Different |
18 of the 24 values in this table carry a source. The rest have no source on record, which is not the same as being wrong.
How to read Same, Different, No data, Unverified and Not applicable is documented on the configuration-level specification screen. If a condition you require is unknown, withhold the decision and match the exact model, sales region and configuration against the sources on that screen.
Differences recorded in the table
2 fields can be ranked on the same basis, listed by weight.
- Battery life · Logitech G PRO X TKL LIGHTSPEED 50 h, Razer BlackWidow V4 75% 0 h (-100%)
- Weight · Razer BlackWidow V4 75% 815 g, Logitech G PRO X TKL LIGHTSPEED 1012 g (-19.5%)
The decision axes and the checking order for the whole category are on the Keyboards comparison page.
The two products this comparison names
Match the listing against these models first. The recorded-field count is catalogue completeness, not product quality.
- Logitech G PRO X TKL LIGHTSPEED · Logitech · model number 920-012127 · released 2023 · recorded fields 12/12
- Razer BlackWidow V4 75% · Razer · model number RZ03-0500 · released 2023 · recorded fields 12/12
Fields the two products share
2 recorded fields hold the same value for both stored representative configurations, so nothing in this list separates them.
- Color · Black
- Region · KR
Who should choose Logitech G PRO X TKL LIGHTSPEED
Logitech G PRO X TKL LIGHTSPEED leads the table on Battery life. A tournament TKL with LIGHTSPEED, Bluetooth, wired connectivity, and PBT keycaps.
Who should choose Razer BlackWidow V4 75%
Razer BlackWidow V4 75% leads the table on Weight. A wired 75% keyboard with hot-swap sockets, gasket mounting, 8,000Hz polling, and a wrist rest.
How to read price and purchase availability
No merchant link is shown: neither product has an approved listing whose name and configuration match the catalogue, and AsKrs does not guess a destination.
- Logitech G PRO X TKL LIGHTSPEED · No verified purchase link currently available
- Razer BlackWidow V4 75% · No verified purchase link currently available
This comparison is built from published specifications and stored representative configurations. The use context, configuration checks, switching costs, and the scope and limits for Keyboards are documented on the Keyboards comparison page.