Get insider access
Preferred store
Your browser is not supported or outdated so some features of the site might not be available.
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Shape
    3. Portability
    4. Build Quality
    5. Weight
    6. Hand Size Recommendation
    7. Wireless Versatility
    8. Cable
    9. Mouse Feet
    10. In The Box
    11. Palm Grip: Hand Size Recommendation
    12. Claw Grip: Hand Size Recommendation
    13. Fingertip Grip: Hand Size Recommendation
  5. Control
    1. Main Button
    2. Additional Buttons
    3. Click Latency
    4. CPI
    5. Sensor Latency
    6. Sensor Specifications
    7. Mouse Wheel
    8. Noise
  6. Operating System And Software
    1. Configuration Software
    2. Mouse Compatibility
  7. Comments

Logitech G903 LIGHTSPEED vs Logitech G900 Chaos Spectrum

Side-by-Side Comparison

Products

Logitech G903 LIGHTSPEED
Logitech G900 Chaos Spectrum

Tested using Methodology v1.5

Updated Jan 27, 2025 07:04 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated Sep 06, 2022 08:39 PM

SEE PRICE
Amazon.com
Logitech G903 LIGHTSPEED Picture
Logitech G900 Chaos Spectrum Picture

Variants

  • G903 Lightspeed (Black)
  • G900 Chaos Spectrum (Black)

Our Verdict

Logitech G903 LIGHTSPEED

Logitech G900 Chaos Spectrum

The Logitech G903 LIGHTSPEED is an updated version of the Logitech G900 Chaos Spectrum. Both mice are very similar, but the G903 LIGHTSPEED has an optional 10g weight you can add to center the weight distribution. It also has better click latency and a more consistent sensor. Both mice are well-suited for all grip types, but small hands may not reach all the buttons with a fingertip grip.

0

Check Price

Black
G903 Lightspeed
SEE PRICE
Amazon.com
Black
G900 Chaos Spectrum
SEE PRICE
Amazon.com

Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our mice test methodology.

Main Differences for

Threshold 

0.10

Work 

8.2
8.2
No major differences between these mice for work. See full list of tests below.

Full Comparison

Design

Style  

Style Picture  

Logitech G903 LIGHTSPEED Style Picture
Logitech G900 Chaos Spectrum Style Picture

Type 
 

Standard
Standard

Coating 
 

Matte
Matte

Lighting Color  

RGB
RGB

Show text

Shape  

3D Model  

Logitech G903 LIGHTSPEED 3D Model
Logitech G900 Chaos Spectrum 3D Model

Length  

5.1" (130 mm)
5.1" (130 mm)

Width  

2.6" (65 mm)
2.6" (65 mm)

Height  

1.6" (40 mm)
1.6" (40 mm)

Grip Width 
 

61 mm
61 mm

Ambidextrous 
 

True Ambidextrous
Yes

Left-Handed Friendly 
 

Yes
No

Finger Rest 
 

No
No

Portability 
 

5.6
5.6

Portability picture  

Logitech G903 LIGHTSPEED Portability picture
Logitech G900 Chaos Spectrum Portability picture

Box Volume 
 

20.08 in³ (329 cm³)
20.08 in³ (329 cm³)

Receiver Storing 
 

No
No

Show text

Build Quality 
 

8.0
8.0

Build quality picture  

Logitech G903 LIGHTSPEED Build quality picture
Logitech G900 Chaos Spectrum Build quality picture

Show text

Weight 
 

5.8
5.9

Minimum Weight Picture  

Logitech G903 LIGHTSPEED Minimum Weight Picture

Lowest Weight 
 

106.7 g
107 g

Default Weight 
 

111.0 g
154 g

Weight Distribution 
 

Front-heavy
Centered

Extra Weights 
 

Yes
No

Maximum Weight Without Wire 
 

107 g

Show text

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

Logitech G903 LIGHTSPEED Palm Grip Hand Recommendation

Claw Grip Hand Recommendation 
 

Logitech G903 LIGHTSPEED Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation 
 

Logitech G903 LIGHTSPEED Fingertip Grip Hand Recommendation

Right-handed 
 

No

Left-handed 
 

Yes
No

Ambidextrous 
 

True Ambidextrous
Yes

Coating 
 

Matte
Matte

Finger Rest 
 

No
No

Show text

Wireless Versatility 
 

7.2
7.0

Maximum Of Paired Devices 
 

1

Bluetooth 
 

No
No

Receiver 
 

Yes
Yes

Battery Type 
 

Rechargeable
Rechargeable

Use When Charging 
 

Yes
Yes

On/Off Activation 
 

Auto Off And On/Off Switch
Auto Off And On/Off Switch

Receiver Extender 
 

Yes
Yes

Battery Indicator  

Yes
Yes

Show text

Cable 
 

8.0
8.0

Cable Video  

Connectivity  

Wireless
Wireless

Cable Length 
 

6.1 ft (1.9 m)
6.1 ft (1.9 m)

Cable Type 
 

Braided
Braided

Permanent Kink 
 

No
No

Port Type: Mouse End 
 

Micro USB
Micro USB

Port Type: PC End 
 

USB
USB

Show text

Mouse Feet 
 

7.5
7.5

Mouse Feet picture  

Logitech G903 LIGHTSPEED Mouse Feet picture
Logitech G900 Chaos Spectrum Mouse Feet picture

Gliding Experience 
 

Good
Good

Material 
 

PTFE
PTFE

Extra Included 
 

No
No

In The Box 
 

In the box picture  

Logitech G903 LIGHTSPEED In the box picture
Logitech G900 Chaos Spectrum In the box picture

Show text

Palm Grip: Hand Size Recommendation 
 

Palm Grip Picture  

Logitech G900 Chaos Spectrum Palm Grip Picture

Small Hand 
 

Yes

Medium Hand 
 

Yes

Large Hand 
 

Yes

X.Large Hand 
 

Yes

Claw Grip: Hand Size Recommendation 
 

Claw Grip Picture  

Logitech G900 Chaos Spectrum Claw Grip Picture

Small Hand 
 

Yes

Medium Hand 
 

Yes

Large Hand 
 

Yes

X.Large Hand 
 

Yes

Fingertip Grip: Hand Size Recommendation  
 

Fingertip Grip Picture  

Logitech G900 Chaos Spectrum Fingertip Grip Picture

Small Hand  
 

No

Medium Hand 
 

Yes

Large Hand 
 

Yes

X.Large Hand  
 

Yes
Control

Main Button 
 

Actuation Graph  

See details on graph tool

Force/Distances Graph  

See details on graph tool

Switch Type 
 

Mechanical

Switch Model 
 

Not Specified

Additional Buttons 
 

8.3
8.6

Buttons Picture  

Logitech G903 LIGHTSPEED Buttons Picture
Logitech G900 Chaos Spectrum Buttons Picture

Buttons Activation 
 

Mechanical

Total Number Of Buttons 
 

13
13

Number Of Side Buttons 
 

4
4

Number Of Programmable Inputs  
 

21
21

Profile Switching Button 
 

Yes
Yes

CPI (DPI) Switching Button 
 

Yes

Gesture Support 
 

No
No

Show text

Click Latency 
 

8.7
8.4

Latency Testing While Gaming  

Latency Data  

See details on graph tool

Expected Connection 
 

5.0 ms

Wired 
 

4.1 ms
12 ms

Receiver 
 

5.0 ms
11 ms

Bluetooth 
 

N/A
N/A

Show text

CPI 
 

9.7

CPI Video  

CPI Graph  

See details on graph tool

SRAV Close-Up  

Logitech G903 LIGHTSPEED SRAV Close-Up

SRAV @ 1600 CPI 
 

-0.15%

SRAV @ 800 CPI 
 

-0.09%

SRAV @ 400 CPI 
 

-0.33%

SRAV @ Fixed CPI 
 

N/A

Precision Error Between Speeds 
 

0.16%

Precision Error Between CPI 
 

0.15%

Worst Tracking Error 
 

2.00%

Minimum CPI 
 

50 CPI
50 CPI

Maximum CPI 
 

12,000 CPI
12,000 CPI

CPI Adjustment Steps 
 

50 CPI
50 CPI

Sensor Latency 
 

8.6

Sensor Latency Demonstration  

Sensor Latency Transition Graph  

See details on graph tool

Sensor Latency CPI Graph  

See details on graph tool

Delay To Start Of Movement 
 

13.2 ms

Delay At Half Movement 
 

5.2 ms

Delay To End Of Movement 
 

6.1 ms

Sensor Specifications 
 

Sensor Technology 
 

Optical (LED)
Optical (LED)

Sensor Model 
 

PixArt PMW3366
PixArt PMW3366

Works On Glass 
 

No
No

Minimum CPI (DPI) 
 

50 CPI
50 CPI

Maximum CPI (DPI) 
 

12,000 CPI
12,000 CPI

CPI (DPI) Adjustment Steps 
 

50 CPI
50 CPI

CPI (DPI) Variation 
 

12%

Minimum Lift Off Distance 
 

1.2 mm
1.2 mm

Maximum Polling Rate 
 

1000 Hz
1000 Hz

Show text

Mouse Wheel 
 

Mouse wheel picture  

Logitech G903 LIGHTSPEED Mouse wheel picture
Logitech G900 Chaos Spectrum Mouse wheel picture

Scroll Wheel Type 
 

Notched Wheel + Free Wheel
Notched Wheel + Free Wheel

Scroll Wheel Steps 
 

24 Steps
24 Steps

Scroll Wheel Tilt 
 

Yes
Yes

Thumb Wheel Type 
 

No
No

Thumb Wheel Steps 
 

No Thumb Wheel
No Thumb Wheel

Show text

Noise  

Noise Video  

Click Noise 
 

Quiet
Quiet
Operating System And Software

Configuration Software 
 

Software Tour  

Software Name  

Logitech G HUB
Logitech G Hub

Software Windows Compatibility 
 

Yes
Yes

Software macOS Compatibility 
 

Yes
Yes

On-Board Memory 
 

Yes
Yes

CPI (DPI) Adjustment  
 

Yes
Yes

Polling Rate Adjustment 
 

Yes
Yes

Profile Configuration 
 

Yes
Yes

Profile Auto-Switching 
 

Yes

Software settings screenshot  

Logitech G900 Chaos Spectrum Software settings screenshot

RGB On/Off 
 

Yes
Yes

Account Needed 
 

No

Show text

Mouse Compatibility 
 

10
10

Windows Compatibility  

Fully
Fully

macOS Compatibility  

Fully
Fully

Show text

Check Price

Black
G903 Lightspeed
SEE PRICE
Amazon.com
Black
G900 Chaos Spectrum
SEE PRICE
Amazon.com

Logitech G903 LIGHTSPEED

Logitech G900 Chaos Spectrum

Comments

  1. Comparison

Logitech G903 LIGHTSPEED vs Logitech G900 Chaos Spectrum: Main Discussion

What do you think of these products? Let us know below.


Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.

PreviewBack to editorFormat guide
No comments yet, refresh to see new ones