Updated: October 27, 2026. Added the Razer keyboard’s battery rating, height and weight from Razer’s current pages, and updated the battery wording that depended on them.

Most people pick a keyboard by its switches and only find out later how it connects, how long it lasts on a charge, or that the fast mode needs an extra dongle. Honestly, those details shape everyday use more than the switch colour.

We compared three wireless tenkeyless (TKL) mechanical keyboards from Logitech G and Razer on what the makers publish.

How we chose: research-based. We used the manufacturers’ product pages (cited below). We have not physically tested these keyboards. Battery and polling figures are the makers’ own.

The short answer

• Low-profile and slim: Logitech G515 LIGHTSPEED TKL. 22 mm tall (though not light, at 880 g), LIGHTSPEED wireless, Bluetooth or wired, up to 36 hours [1].
• Longest Logitech battery rating: Logitech G PRO X TKL LIGHTSPEED, up to 50 hours, with tactile, clicky or linear switch options [2].
• Hot-swappable switches: Razer BlackWidow V4 Tenkeyless HyperSpeed. 2.4 GHz, Bluetooth or USB-C; 1,000 Hz polling, or 4K with a dongle sold separately [3].
• Our take: a TKL board leaves more desk room for your mouse. That’s an opinion about layout, not a performance claim.

Side-by-side

	Logitech G515 LIGHTSPEED TKL	Logitech G PRO X TKL LIGHTSPEED	Razer BlackWidow V4 Tenkeyless HyperSpeed
Connections	LIGHTSPEED wireless, Bluetooth, wired [1]	LIGHTSPEED wireless, Bluetooth; detachable 1.8 m cable [2]	HyperSpeed Wireless (2.4 GHz), Bluetooth, or Type C [3]
Polling / report rate	1 ms (max) [4]	1 ms report rate [2]	1,000 Hz; 4K with HyperPolling Wireless Dongle (sold separately) [3]
Switches	Low-profile GL mechanical, tactile or linear; 1.3 mm actuation [1]	Tactile, clicky or linear [2]	Razer Mechanical Switches Gen-3 (Tactile), hot-swappable (3- or 5-pin) [3]
Keycaps	Double-shot PBT [1]	Not listed on product page/datasheet	Doubleshot ABS [3]
Rated battery	Up to 36 hours [1]	Up to 50 h [2]	Up to 980 hours (Razer’s “up to” rating; test conditions not stated) [3]
Height	22 mm [1]	34 mm (support spec) [5]; 38 mm (product page) [2]	Approx. 43.5 mm (listed height, support spec) [6]
Weight	31.04 oz (880 g) [1]	1,010 g [5]	Approx. 974.3 g (support spec) [6]
Price tier	Mid	Premium	Budget

Specs from the maker pages numbered in Sources. Battery figures are the makers’ ratings; none of the three pages states the test settings (Razer says only that its rating applies in HyperSpeed Wireless or Bluetooth mode [3]).

Price tiers are relative to the products in this article. Each tier is based on the maker’s own US store listing, checked October 12, 2026 (ET). We don’t list street or retail prices because they change. “Not assigned” means we couldn’t find a price on the maker’s own US site. Check the current price before you buy.

Logitech G515 LIGHTSPEED TKL: low-profile and slim

• Tri-mode: LIGHTSPEED wireless, Bluetooth and wired; Logitech says you can pair a compatible mouse to the same USB receiver (“2:1 pairing”) [1].
• Low-profile GL mechanical switches, tactile or linear, with a 1.3 mm actuation point [1].
• Double-shot PBT keycaps; 22 mm tall [1].
• Up to 36 hours of battery life [1].
• USB report rate: max 1 ms, per Logitech’s support spec [4].
• Trade-off: at 880 g it isn’t a light board, despite the slim profile [1]. Our view: a 22 mm low-profile board suits some typists more than others.

See the Logitech G515 LIGHTSPEED TKL on Logitech G

Logitech G PRO X TKL LIGHTSPEED: the longest Logitech battery rating

• LIGHTSPEED wireless and Bluetooth, per Logitech’s page; a 1.8 m detachable charging and data cable [2].
• “1 ms report rate”; up to 10 m wireless range [2].
• Tactile, clicky or linear switch options [2].
• Up to 50 hours of battery life [2].
• Weight 1,010 g, per Logitech’s support spec [5]. Height: 34 mm on Logitech’s support spec [5], 38 mm on the product page [2].
• Trade-off: the highest tier of the three, and heavier than the G515 by Logitech’s figures [1][5].

See the Logitech G PRO X TKL LIGHTSPEED on Logitech G

Razer BlackWidow V4 Tenkeyless HyperSpeed: hot-swappable switches

• HyperSpeed Wireless (2.4 GHz), Bluetooth (switch between 3 devices) or USB Type-C [3].
• Pre-loaded Razer Orange Tactile Switches Gen-3; the socketed PCB takes 3- or 5-pin switches [3].
• “1,000 Hz Polling Rate”, N-key rollover, aluminum alloy top case [3].
• Trade-off: Razer’s 4K polling needs the HyperPolling Wireless Dongle, which is “sold separately” [3]. Razer’s page rates the battery at “Up To 980 Hours” and says that applies in HyperSpeed Wireless or Bluetooth mode, but it states no test conditions [3].

See the Razer BlackWidow V4 Tenkeyless HyperSpeed on Razer

How to choose

If you…	Consider
Want a slim, low-profile board	Logitech G515 LIGHTSPEED TKL
Want the longest Logitech battery rating	Logitech G PRO X TKL LIGHTSPEED
Want to swap switches later	Razer BlackWidow V4 Tenkeyless HyperSpeed

Our take: don’t pay for 4K or 8K polling unless you’ve decided you want it. Our 8K polling explainer covers the trade-offs. (Opinion, not a test result.)

FAQ

What does “1 ms report rate” mean?
It means the keyboard reports to your PC every 1 ms, which works out to 1,000 times a second (1 ÷ 0.001 s; our calculation) [2].

Will a TKL keyboard fit better with a monitor arm setup?
It frees up desk width. If you’re also rearranging a big screen, see Best Monitor Arms for Ultrawide Monitors.

Related: Is 8K Polling Worth It? · Best Monitor Arms for Ultrawide Monitors

Real gear for a better everyday.

---

Sources (checked October 12, 2026, ET, unless a later date is shown)

1. Logitech G, G515 LIGHTSPEED TKL product page (specs and features): https://www.logitechg.com/en-us/shop/p/g515-tkl-wireless-keyboard
2. Logitech G, PRO X TKL LIGHTSPEED product page (specs and features): https://www.logitechg.com/en-us/shop/p/pro-x-tkl-wireless-keyboard
3. Razer, BlackWidow V4 Tenkeyless HyperSpeed product page (Tech Specs, features, FAQ): https://www.razer.com/gaming-keyboards/razer-blackwidow-v4-tenkeyless-hyperspeed (battery rating rechecked October 27, 2026, ET)
4. Logitech Support, “Specification – G515 LIGHTSPEED TKL”: https://support.logi.com/hc/en-us/articles/23600704280087-Specification-G515-LIGHTSPEED-TKL
5. Logitech Support, “Specification – PRO X TKL Gaming Keyboard (Tactile)” (LIGHTSPEED wireless model): https://support.logi.com/hc/en-us/articles/14433180096023-Specification-PRO-X-TKL-Gaming-Keyboard-Tactile
6. Razer Support, “Razer BlackWidow V4 Tenkeyless HyperSpeed | RZ03-0548 Support & FAQs” (specs, checked October 27, 2026, ET): https://mysupport.razer.com/app/answers/detail/a_id/15142