34 facts in comparison
Logitech G915 X LIGHTSPEED vs Corsair K100 AIR
This comparison puts the Logitech G915 X LIGHTSPEED and Corsair K100 AIR side by side — two keyboards measured against the same 34-spec sheet, with every meaningful gap scored and explained. On our weighted VS Score they finish level — the differences are real, but they pull in opposite directions.
The single biggest measurable gap is polling rate: 1,000 Hz vs 8,000 Hz. A transparency note before you dive in: the spec sheets are Logitech G915 X LIGHTSPEED 62% and Corsair K100 AIR 76% complete. Anything unverified shows as Unknown and is left out of the scores — we never estimate a missing value.
Where the Logitech G915 X LIGHTSPEED beats the Corsair K100 AIR
- Much longer battery life ?800 h vs 200 h
- PBT Keycap material ?PBT vs ABS
Where the Corsair K100 AIR beats the Logitech G915 X LIGHTSPEED
- A much higher polling rate ?8,000 Hz vs 1,000 Hz
- A much lower front height ?11 mm vs 23 mm
Key real-world differences
The spec sheet pulls in both directions. These are the gaps big enough to shape the decision — with the actual figures, and what each one means in real-world use.
- Polling ratePerformance1,000 Hz vs 8,000 Hz — 8× more for the Corsair K100 AIR
How often the keyboard reports input; higher can reduce latency.
- Battery lifeConnectivity800 h vs 200 h — 4× more for the Logitech G915 X LIGHTSPEED
Battery life for wireless models.
- Keycap materialBuild & soundPBT vs ABS — advantage Logitech G915 X LIGHTSPEED
Keycap plastic; PBT resists shine and wear better than ABS.
- Front heightLayout & size23 mm vs 11 mm — 52% less for the Corsair K100 AIR
The front case height without keycaps; lower boards can reduce wrist extension.
Which one should you buy?
There is no single answer — it depends on what you will actually use it for. Match your priority to the pick below.
- Best for performance Corsair K100 AIR takes the category 100 to 42 — driven by polling rate (1,000 Hz vs 8,000 Hz).
- Best for connectivity Logitech G915 X LIGHTSPEED takes the category 100 to 68 — driven by battery life (800 h vs 200 h).
- Best for build & sound Logitech G915 X LIGHTSPEED takes the category 100 to 43 — driven by keycap material (PBT vs ABS).
- Best for layout & size Corsair K100 AIR takes the category 100 to 0 — driven by front height (23 mm vs 11 mm).
Where each one falls short
Logitech G915 X LIGHTSPEED
- Polling rate: 1,000 Hz vs 8,000 Hz
- Front height: 23 mm vs 11 mm
- 13 specs are unreported (shown as Unknown) and excluded from its scores.
Corsair K100 AIR
- Battery life: 800 h vs 200 h
- Keycap material: PBT vs ABS
- 8 specs are unreported (shown as Unknown) and excluded from its scores.
What matters to you?
Drag the sliders to weight each category and re-rank the products to suit your priorities.
Score breakdown
Switches & typing
Performance
Layout & size
Connectivity
Build & sound
Features
Specs last verified September 1, 2026Logitech G915 X LIGHTSPEED: 21 of 34 specs verified (62%)Corsair K100 AIR: 26 of 34 specs verified (76%)Unverified specs show as Unknown — never estimated, never scored
What reviewers say
The bottom line
The Logitech G915 X LIGHTSPEED and the Corsair K100 AIR are neck and neck, both scoring around 88 on our VS Score. It leads on Connectivity and Build & sound. The Corsair K100 AIR answers back with stronger Performance and Layout & size. With so little between them, your choice comes down to which strengths matter most to you.
Latest comparisons
Latest Keyboards
