At a glance, these two Logitech keyboards seem to solve the same problem: both are wireless tenkeyless gaming boards with LIGHTSPEED, Bluetooth and USB connections. The real difference is under your fingers. The G515 is a slim low-profile model; the PRO X TKL uses a more conventional mechanical key height and adds more direct media controls.
G515 vs PRO X TKL at a glance
| G515 LIGHTSPEED TKL | PRO X TKL LIGHTSPEED | |
|---|---|---|
| Layout | Tenkeyless | Tenkeyless |
| Connection | 2.4 GHz LIGHTSPEED, Bluetooth, USB | 2.4 GHz LIGHTSPEED, Bluetooth, USB |
| Switches | Low-profile GL mechanical | GX mechanical; variant depends on listing |
| Key height | Low-profile | Conventional profile |
| Dedicated volume roller | No | Yes |
| Number pad | No | No |
These are manufacturer-stated features and listing details, not findings from our own keyboard testing.
When the G515 makes more sense
Choose the G515 if you know you want a lower-profile typing position and a cleaner, thinner-looking desk setup. It retains the familiar TKL function row and arrow keys, so the reduced height does not force a smaller layout. Its three connection modes also let you use Bluetooth for general devices and LIGHTSPEED for your gaming PC. The trade-off is the absence of the PRO X TKL’s dedicated roller and the different feel of low-profile switches.
Logitech G515 LIGHTSPEED TKL

Layout: Tenkeyless
Connection: LIGHTSPEED 2.4 GHz, Bluetooth, USB
Switches: Low-profile GL mechanical
- Wireless desk setup
- Low-profile keys
- Room for mouse movement
- You want a number pad
- You want adjustable magnetic actuation
When the PRO X TKL makes more sense
Choose the PRO X TKL if your current mechanical keyboard’s key height feels right and you want to keep that familiar profile. The volume roller and media controls are a tangible benefit when you often adjust audio mid-game. Logitech offers GX switch variants, so do not assume every colour or listing will have the same switch feel; read the selected Amazon AU variant carefully.
Logitech G PRO X TKL LIGHTSPEED

Layout: Tenkeyless
Connection: LIGHTSPEED 2.4 GHz, Bluetooth, USB
Switches: Mechanical GX; check listing variant
- Compact competition-style layout
- Dedicated media controls
- Wireless or wired use
- You prefer a lower-profile key height
- You need a number pad
The shorter answer
The G515 is the slim and simpler wireless option. The PRO X TKL is the one to inspect for full-height keys and dedicated media controls. Neither is the right purchase if you require a number pad or adjustable magnetic actuation. Since prices fluctuate, compare the live Amazon listings rather than relying on a fixed price printed in a guide. The comparison uses Logitech’s G515 and PRO X TKL product details.