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Logitech G915 LIGHTSPEED vs MX Mechanical

Which Keyboard Is Better?

    Top
    Main Differences
    Design
      DimensionsBuild QualityErgonomicsHardware CustomizabilityBacklight FeaturesBacklight ClarityCable & ConnectorWireless VersatilityMacro Keys And ProgrammingExtra FeaturesIn The Box
    Typing Experience
      Typing QualityTyping NoiseKeystrokesAdjustable Input GranularitySwitches
    Performance
      Single-Key LatencyMulti-Key LatencyData TransmissionChord Split
    Software and Operating System
      Configuration SoftwareComputer CompatibilityWireless Mobile Compatibility
    Comments

Products

Logitech G915 LIGHTSPEED
Logitech MX Mechanical

Tested using Methodology v1.4.3

Updated Dec 19, 2025 03:36 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.3.1

Updated May 30, 2025 08:29 PM

SEE PRICE
Amazon.com
Logitech G915 LIGHTSPEED Picture
Logitech MX Mechanical Picture
ConnectivityWireless
Size
Full-size (100%)
Switch Type
Mechanical
N-Key Rollover (NKRO)
Yes
Output Type
Non-Adjustable
Hot-Swappable Switches
No
ConnectivityWireless
Size
Full-size (100%)
Switch Type
Mechanical
N-Key Rollover (NKRO)
No
Output Type
No
Hot-Swappable Switches
No

Our Verdict

Logitech G915 LIGHTSPEED

Logitech MX Mechanical

The Logitech G915 LIGHTSPEED and the Logitech MX Mechanical are both low-profile, wireless mechanical keyboards. However, the G915 LIGHTSPEED is a gaming keyboard, while the MX Mechanical is an office keyboard.

0 

Variants

  • G915 LIGHTSPEED (Black)
  • MX Mechanical (Graphite)

Review

See Logitech G915 LIGHTSPEED Review
See Logitech MX Mechanical Review
5 
4 

Check Price

Black
G915 LIGHTSPEED
SEE PRICE
Amazon.com
Graphite
MX Mechanical
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
SEE PRICE
Walmart.com
Graphite
MX Mechanical
SEE PRICE
BestBuy.com
Black
G915 LIGHTSPEED
SEE PRICE
BestBuy.com
Graphite
MX Mechanical
SEE PRICE
B&H
Black
G915 LIGHTSPEED
SEARCH
B&H
Graphite
MX Mechanical
SEE PRICE
Walmart.com
Black
G915 LIGHTSPEED
SEARCH
Logitech
Graphite
MX Mechanical
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Logitech
Read more

Main Differences for
Gaming

Threshold 

0.10

Gaming 
 

8.6
7.2

Chord Split 
 

8.0
4.2

Multi-Key Latency 
 

8.8
6.9

Single-Key Latency 
 

9.1
7.6

Data Transmission 
 

8.2
5.4

Backlight Features 
 

10
8.0

Full Comparison

Design

Dimensions 
 

Top Picture 
 

Compare High-Res
Logitech G915 LIGHTSPEED Top Picture
Compare High-Res
Logitech MX Mechanical Top Picture

Size 
 

Full-size (100%)
Full-size (100%)

Height 
 

0.8" (2.1 cm)
1.1" (2.7 cm)

Width  

18.7" (47.5 cm)
17.1" (43.4 cm)

Depth 
 

5.8" (14.8 cm)
5.2" (13.2 cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

2.26 lbs (1.027 kg)
1.82 lbs (0.827 kg)
Show Text 

Build Quality 
 

8.0
8.5

Build Quality Close Up 
 

Compare High-Res
Logitech G915 LIGHTSPEED Build Quality Close Up
Compare High-Res
Logitech MX Mechanical Build Quality Close Up

Keycap Material  

ABS
ABS
Show Text 

Ergonomics 
 

7.0
7.0

Side Picture 
 

Compare High-Res
Logitech G915 LIGHTSPEED Side Picture
Compare High-Res
Logitech MX Mechanical Side Picture

Curved/Angled 
 

No
No

Split Keyboard 
 

No
No

Key Alignment 
 

Staggered
Staggered

Minimum Incline 
 

0°
3.5°

Medium Incline 
 

4°
N/A

Maximum Incline 
 

8°
8°

Home Row Height 
 

21.5 mm (0.8")
23.3 mm (0.9")
Show Text 

Hardware Customizability 
 

3.7
5.7

Customizability Overview 
 

Compare High-Res
Logitech G915 LIGHTSPEED Customizability Overview
Compare High-Res
Logitech MX Mechanical Customizability Overview

Replaceable Cherry Stabilizers 
 

Yes
Yes

Stabilizer Fixation 
 

Plate-Mounted
Plate-Mounted

Spacebar Stabilizer Size 
 

Non-Customizable Design
Non-Customizable Design

Size Of Right Mod Keys 
 

Non-Standard
1.25u

Hot-Swappable Switches 
 

No
No

Switch Stem Shape 
 

Kailh Low Profile Choc
Low Profile Cherry MX Style

Mechanical Switch Compatibility 
 

Soldered
Soldered

Magnetic Switch Compatibility 
 

No Magnetic Switch Support

North-Facing Cherry MX Interference 
 

Non-Customizable Design
No

Backlight Features 
 

10
8.0

Backlighting Picture 
 

Compare High-Res
Logitech G915 LIGHTSPEED Backlighting Picture
Compare High-Res
Logitech MX Mechanical Backlighting Picture

Brightness Max 
 

Compare High-Res
Logitech G915 LIGHTSPEED Brightness Max
Compare High-Res
Logitech MX Mechanical Brightness Max

Backlighting  

Yes
Yes

Brightness Min 
 

Compare High-Res
Logitech G915 LIGHTSPEED Brightness Min
Compare High-Res
Logitech MX Mechanical Brightness Min

RGB 
 

Yes
No

Per-Key Backlighting 
 

Yes
Yes

Effects 
 

Yes
Yes

Software Controllable 
 

Yes
Yes
Show Text 

Backlight Clarity 
 

8.0
8.0

White Shot 
 

Compare High-Res
Logitech G915 LIGHTSPEED White Shot
Compare High-Res
Logitech MX Mechanical White Shot
Show Text 

Cable & Connector  

Connectivity  

Wireless
Wireless

Detachable 
 

Yes (Wired Mode and Charge)
Yes (Charge Only)

Length  

6.1 ft (1.9 m)
3.4 ft (1.0 m)

Connector (Keyboard side) 
 

Micro USB
USB type-C
Show Text 

Wireless Versatility 
 

7.5
10

Bluetooth 
 

Yes
Yes

Bluetooth Multi-Device Pairing 
 

No
3

Proprietary Receiver 
 

Yes
Yes

Battery Type 
 

Rechargeable
Rechargeable
Show Text 

Macro Keys And Programming 
 

8.7
4.0

Dedicated Macro Keys Count  

5
0

Onboard Macro Programming 
 

Yes
No

Macro Programming With Software 
 

Yes
Yes
Show Text 

Extra Features 
 

Extra Features 
 

Compare High-Res
Logitech G915 LIGHTSPEED Extra Features
Compare High-Res
Logitech MX Mechanical Extra Features

Media Keys 
 

Dedicated
Non-Dedicated

Trackpad / Trackball  

No
No

Scroll Wheel 
 

Yes
No

Control Knob 
 

No
No

USB Passthrough 
 

No
No

Numpad  

Yes
Yes

Windows Key Lock 
 

Yes
Yes

Lock Indicator  

Caps Lock
Caps Lock
Show Text 

In The Box  

Bundle Picture 
 

Compare High-Res
Logitech G915 LIGHTSPEED Bundle Picture
Compare High-Res
Logitech MX Mechanical Bundle Picture
Show Text 
Typing Experience

Typing Quality 
 

6.5
8.0

Key Spacing 
 

19.0 mm (0.748")
19.0 mm (0.748")
Show Text 

Typing Noise 
 

8.8
8.2

Typing Sample  

Average Loudness 
 

46.5 dBA
49.1 dBA

High Pitch Clicks 
 

No
No
Show Text 

Keystrokes 
 

Key Switch Actuation Graph  

See details
See details
 Compare in Graph Tool

Initial Force 
 

42 gf

Peak Tactile Force 
 

53 gf
48 gf

Actuation Force 
 

51 gf
46 gf

Bottom-Out Force 
 

68 gf

Pre-Travel Distance 
 

1.6 mm
1.4 mm

Total Travel Distance 
 

2.6 mm
3.3 mm
Show Text 

Adjustable Input Granularity 
 

0.0

Input Linearity Graph  

See details

Analog Output Graph  

Logitech G915 LIGHTSPEED Analog Output Graph

Top Deadzone 
 

N/A

Bottom Deadzone 
 

N/A

Detection Ratio 
 

N/A

Minimum Step Depth 
 

N/A
Show Text 

Switches 
 

Wobble Video  

Switch Name 
 

GL Tactile
Kailh Choc V2 Low Profile Brown

Switch Type 
 

Mechanical
Mechanical

Feel 
 

Tactile
Tactile

Output Type 
 

Non-Adjustable
No
Performance

Single-Key Latency 
 

9.1
7.6

Single-Key Latency Graph  

See details
See details
 Compare in Graph Tool

Best Connection 
 

3.7 ms
12.4 ms

Best Connection Std Dev  

±0.5 ms
±2.9 ms

Wired 
 

3.7 ms
N/A

Receiver 
 

4.4 ms
12.4 ms

Bluetooth 
 

10.7 ms
16.4 ms

PCB (Estimated) 
 

2.4 ms
11.2 ms
Show Text 

Multi-Key Latency 
 

8.8
6.9

Latency Video  

Multi-Key Latency Graph  

See details
See details
 Compare in Graph Tool

Connection Evaluated  

Receiver
Receiver

Key Press 
 

4.3 ms
15.1 ms

Key Release 
 

40.4 ms

Data Transmission 
 

8.2
5.4

Multi-Key Raw USB 
 

Compare High-Res
Logitech G915 LIGHTSPEED Multi-Key Raw USB
Compare High-Res
Logitech MX Mechanical Multi-Key Raw USB

Connection Evaluated  

Wired
Receiver

USB Polling Rate 
 

1,000 Hz
1,000 Hz

Effective Update Rate 
 

1,000 Hz
143 Hz

N-Key Rollover (NKRO) 
 

Yes
No

Multiple Keys Per USB Report 
 

No
No

Chord Split 
 

8.0
4.2

Chord Split Graph  

See details
See details
 Compare in Graph Tool

4 Chord Split Delay 
 

5.0 ms
22.1 ms

8 Chord Split Delay 
 

14.6 ms
N/A
Software and Operating System

Configuration Software 
 

Software Tour  

Software Name  

Logitech G HUB
Logi Options+

Software Windows Compatible 
 

Yes
Yes

Software macOS Compatible 
 

Yes
Yes

Onboard Memory 
 

Yes
No

Profiles 
 

6+
6+
Show Text 

Computer Compatibility 
 

10
10

Windows 
 

Fully Compatible
Fully Compatible

macOS 
 

Fully Compatible
Fully Compatible

Linux 
 

Fully Compatible
Fully Compatible

Media Key Compatibility 
 

Windows, MacOS & Linux
Windows, MacOS & Linux
Show Text 

Wireless Mobile Compatibility 
 

10
9.2

Android 
 

Fully Compatible
Fully Compatible

iOS 
 

Fully Compatible
Fully Compatible

iPadOS 
 

Fully Compatible
Partially Compatible

Media Key Compatibility 
 

Android, iPhone & iPad
Android, iPhone & iPad
Show Text 

Check Price

Black
G915 LIGHTSPEED
SEE PRICE
Amazon.com
Graphite
MX Mechanical
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
SEE PRICE
Walmart.com
Graphite
MX Mechanical
SEE PRICE
BestBuy.com
Black
G915 LIGHTSPEED
SEE PRICE
BestBuy.com
Graphite
MX Mechanical
SEE PRICE
B&H
Black
G915 LIGHTSPEED
SEARCH
B&H
Graphite
MX Mechanical
SEE PRICE
Walmart.com
Black
G915 LIGHTSPEED
SEARCH
Logitech
Graphite
MX Mechanical
SEARCH
Logitech
Back to Top

Logitech G915 LIGHTSPEED

Logitech MX Mechanical

Comments

  1. Comparison
 • Posted 1 year ago

Logitech G915 LIGHTSPEED vs Logitech MX Mechanical: Main Discussion

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