Keychron Q3 HE vs Logitech G515 LIGHTSPEED TKL

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Q3 HE compared with G515 LIGHTSPEED TKL
KeychronQ3 HELogitechG515 LIGHTSPEED TKL
Overview
ReleasedSeptember 2024June 2024
Typing
LayoutTenkeylessTenkeyless
SwitchesMagnetic (Hall effect)Low-profile mechanical
Key travel–3.2 mm
BacklightRGBRGB
Keys labelled forMac, Windows and moreWindows
Touch IDNo–
SwitchesGateron Double-Rail Magnetic Nebula switches; hot-swappable with Gateron double-rail magnetic switches only; actuation adjustable from 0.2 to 3.8 mm with 0.1 mm sensitivity; screw-in PCB stabilisersLow-profile GL mechanical switches, factory-lubed; Tactile (45 ± 10 gf) or Linear (43 ± 10 gf); 1.3 ± 0.3 mm actuation
Key travel–3.2 ± 0.25 mm total travel
KeycapsOSA-profile double-shot PBT, not shine-throughLow-profile double-shot PBT
Layouts80% TKL with a knob; ANSI; UK, German, Nordic and Swiss ISO (ISO Layout Collection, keychron.com)English UK, English International, Czech/Slovak, Danish/Norwegian/Swedish/Finnish, French, German, Hungarian, Italian, Spanish and Swiss (UK store)
BacklightSouth-facing RGB LEDs; 22 RGB backlight effectsLIGHTSYNC RGB, about 16.8 million colours
Special keysProgrammable rotary knob; Rapid Trigger; four-in-one Dynamic Keystrokes; N-key rollover wireless and wiredKEYCONTROL with G SHIFT layers (up to 15 functions per key); indicator lights for LIGHTSPEED, Bluetooth, Game Mode, battery and Caps Lock
Connections and battery
Connects byBluetooth, USB receiver and CableBluetooth, USB receiver and Cable
Devices it switches between3–
PowerRechargeableRechargeable
Battery life (maker's claim)Up to 100 hoursUp to 36 hours
Receiver2.4 GHz USB receiver at 1,000 Hz polling; Bluetooth 5.2 at 90 Hz to up to three devices; USB-C wired at 1,000 HzLIGHTSPEED USB-A receiver (1 ms report rate) with 2:1 pairing for a compatible Logitech G mouse; Bluetooth; USB-C wired with the included 1.8 m USB-A to USB-C cable
Battery life detail4,000 mAh lithium-polymer battery; up to 100 hours with the backlight off1,500 mAh rechargeable battery, not user-replaceable; up to 36 hours of continuous play (Logitech doesn't say at what lighting level)
ChargingUSB-C; 1.8 m Type-C cable with a Type-A to Type-C adapterUSB-C, with the included 1.8 m USB-A to USB-C charging and data cable
Works withmacOS, Windows and Linux–
SoftwareQMK firmware; Keychron Launcher web app for actuation, Rapid Trigger, key remapping and macrosLogitech G HUB
Design
Weight1775 g880 g (better)
Width × depth × height–354.75 × 146 × 22.14 mm
Size365 × 137 mm; 22.6 mm high at the front and 35.8 mm at the back without keycaps; 2.4 mm feet; 5.2° typing angle; 1,775 g ± 10 g fully assembled354.75 × 146 × 22.14 mm; 880 g
MaterialsAluminium body and plate; double-gasket designLayered sound-dampening construction
ColoursCarbon Black, Shell White (keychron.com)Black, White (Black only on the UK store)
In the box–Keyboard, LIGHTSPEED USB receiver, USB-A to USB-C charging and data cable, documentation
Warranty–2-year limited hardware warranty

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