Logitech G635 Gaming Headset HEADPHONES REVIEW

Usage Ratings - Version 1.3.1
6.2
Mixed Usage
7.7
Neutral Sound
5.6
Commute/Travel
5.8
Sports/Fitness
6.2
Office
6.1
Wireless Gaming
7.7
Wired Gaming
6.4
Phone Call
Type : Over-ear
Enclosure : Closed-Back
Wireless : No
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The Logitech G635 are decent gaming headphones that have a great sound quality. Their wired connection is versatile and can be used with all platforms, which is convenient. They are comfortable, but their design is fairly bulky and doesn’t isolate any noise. Their microphone is also slightly bright, but people should still hear you clearly. On the upside, their companion software offers plenty of controls and customization options and it is one of the most complete and useful gaming apps we’ve seen so far.

Test Results
Design 6.6
Isolation 4.6
Microphone 6.9
Active Features 9.0
Connectivity 3.9
Pros
  • Great audio reproduction.
  • Amazing app support.
  • Comfortable and durable build.
Cons
  • Very bulky design.
  • Poor isolation performance.
  • Sound delivery varies significantly across different users. Sensitive to glasses.
  1. Update 11/21/2019: Converted to Test Bench 1.3.1.
  2. Update 11/6/2019: Converted to Test Bench 1.3.

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6.6

Design

The Logitech G635 have a very gamer-centric look with a futuristic feel, but their overall design is very bulky. This headset is the wired variant of the wireless Logitech G935. These gaming headphones are comfortable to wear during playing sessions but are very tight on the head, which can be uncomfortable for some. They trap a good amount of heat inside the ear cups and aren’t very portable. On the upside, you have access to great gaming controls and mappable buttons. They can also be used on pretty much any platform, thanks to their 1/8” and USB cables.

Style

The Logitech G635 are very similar in design to the Logitech G935, except they are wired. Both these are new models from the previous Logitech G633 and Logitech G933. Their overall look is still the same, with a bulky design that shows without a doubt that they are gaming headphones. They are not very outdoor-friendly, and when powered by their USB cable, you get RGB lighting on the logo and a strip at the back of the ear cups. Their cups are large and more squared than most other gaming brands. You can also fold the microphone in to hide it, but they still won’t be great to use outside, even if you can use them with your phone.

7.5 Comfort
Weight : 0.77 lbs
Clamping Force
:
1.5 lbs

The G635 are comfortable gaming headphones, but they are one of the tightest headsets we’ve reviewed so far. The padding on this model is made from a breathable mesh and feels soft on the skin. The cups are large and spacious and should fit most ear sizes and shapes. They are comfortable to wear for a while, but if you have a larger sized head, these could become uncomfortable rather quickly.

6.2 Controls
OS Compatibility
:
Not OS specific
Ease of use : Decent
Feedback : Great
Call/Music Control : No
Volume Control : Yes
Microphone Control : Yes
Channel Mixing
:
No
Noise Canceling Control : N/A
Talk-Through
:
N/A
Additional Buttons : Presets

The Logitech G635 have a great control scheme for gamers. You have access to a volume wheel, a mic-mute button, and three mappable buttons that you can set to practically whatever you want inside their app. You also get a switch to choose between when you’re using the headset with a 1/8” connector or with the USB connector. The buttons offer great feedback and the ridges make it easier to distinguish different buttons, but it might take you a second to feel the surrounding buttons to be sure of which one you are about to press.

6.1 Breathability
Avg.Temp.Difference : 6.8 C

Even if the padding is made from a porous and mesh-like fabric, these headphones are not breathable. They are quite tight on the head and create a good seal around your ears, which means they trap a lot of heat inside the ear cups and don’t allow for much airflow. They won’t be suitable for sports as you’d sweat more than usual, and they weren't designed for this use case.

5.5 Portability
L : 8.0 "
W : 7.4 "
H : 3.1 "
Volume : 184 Cu. Inches
Transmitter required : N/A

Like most gaming headsets, especially Logitech ones, the G635 is not very portable. The cups are quite large and the overall build is very bulky. The cups don’t fold into a more portable format, but you can swivel them to make the headset lay flat, which is easier to slide in a bag. Overall, these gaming headphones should stay around your gaming setup and won’t be ideal to use on-the-go.

0 Case
Type : N/A
L : N/A
W : N/A
H : N/A
Volume : N/A

They don’t come with a case or traveling pouch to protect them.

7.5 Build Quality

There doesn’t seem to be any real improvement in durability from the G633 and G933 when it comes to build quality. These headphones are still well-built but are slightly plasticky. They also squeak a bit when manipulated. On the upside, the headband is flexible, yet sturdy thanks to a reinforcing metal frame. The cups are quite dense and the backplates are magnetic and easily removable. However, this isn't as useful as the G935 since there's no need for storage space for a wireless dongle. You can also fold the microphone in when you’re not using it, which is nice. You can use either a USB or a 1/8” cable, which means both are replaceable if ever they get damaged.

6.0 Stability

These headphones are fairly tight on the head but sway around quite a bit with head movements. They won’t be ideal for sports activities, but this shouldn’t be a problem during a casual gaming session. However, be careful not to get the cable stuck or hooked on something, as it could yank the headphones off your head before detaching itself.

Headshots 1
Headshots 2
Top

Sound

Their bass is extended and accurate, their mid-range is well-balanced and flat, and their treble is virtually flawless. However, their frequency response consistency is sub-par, which means they’ll perform differently on different users. Overall, these headphones are very versatile and will be suited for all music genres and will be great to reproduce video game effects as well.

Sound Profile
Bass Amount
:
0.59 db
Treble Amount
:
-1.61 db
5.3 Frequency Response Consistency
Avg. Std. Deviation
:
1.37 dB

The Logitech G635 have sub-par frequency response consistency. In the bass range, we measured more than 16dB of maximum deviation at 20Hz, which is very noticeable. People with glasses may experience a drop in bass if they create a break in the seal of the headphones around your ears. Their treble consistency is also sub-par, with about 8dB of deviation measured around 2.8kHz; this may be due to the design of the cups.

8.8 Bass Accuracy
Std. Err.
:
1.62 dB
Low-Frequency Extension
:
10 Hz
Low-Bass
:
1.65 dB
Mid-Bass
:
1.36 dB
High-Bass
:
2.16 dB

The G635 have an excellent bass range performance. LFE is extended down to 10Hz, which is great. The entire range's response is virtually flat and within 2dB of our target, which is good. Also, their bass delivery varies significantly across users, and is sensitive to the quality of fit, seal, and whether you wear glasses. The response here represents the average bass response and your experience may vary.

8.7 Mid Accuracy
Std. Err.
:
1.75 dB
Low-Mid
:
1.02 dB
Mid-Mid
:
-0.48 dB
High-Mid
:
-2.04 dB

The mid-range of the G635 is very good. The response throughout the range is well-balanced and flat, which means vocals and leads will be accurately reproduced. There is a small 5dB tilt favoring lower end frequencies that will muddy up the sound slightly, and will also decrease the intensity and projection of vocals/leads. However, this will be barely noticeable.

8.8 Treble Accuracy
Std. Err.
:
2.46 dB
Low-Treble
:
-0.1 dB
Mid-Treble
:
0.77 dB
High-Treble
:
-5.39 dB

Their treble performance is also very good. The response is virtually flawless up to 8kHz but may lack a bit of detail and presence on frequencies after that mark. Also, their treble delivery varies noticeably across users. The response here represents the average response, and your experience may vary.

8.1 Peaks/Dips
Peaks
:
1.27 db
Dips
:
0.89 db
8.3 Imaging
Weighted Group Delay
:
0.21
Weighted Amplitude Mismatch
:
0.42
Weighted Frequency Mismatch
:
2.6
Weighted Phase Mismatch
:
7.41

The imaging performance is great. Weighted group delay is at 0.21, which is very good, but the GD graph shows that the response crosses the audibility threshold around 50-60Hz. This could result in a bass that is a tad slow, but it's subtle enough that most people won't notice it. Additionally, the L/R drivers of our test unit were very well-matched in amplitude and phase response, with a slight frequency mismatch. This is important for the accurate localization and placement of objects (like voice, instruments, and video game effects) in the stereo field. However, these results are only valid for our unit and yours may perform differently.

6.6 Soundstage
PRTF Accuracy (Std. Dev.)
:
2.74 dB
PRTF Size (Avg.)
:
7.3 dB
PRTF Distance
:
12.68 dB
Openness
:
6.5
Acoustic Space Excitation
:
4.0

The soundstage of the G635 is okay. The PRTF graph shows a good amount of pinna interaction and activation, which is good, but its accuracy isn’t great. There is also not a notch present around the 10kHz region, either. Therefore, their soundstage may be perceived as relatively large but unnatural and located inside the head. Their closed-back design also means they won’t be open-sounding as open-back headphones.

8.0 Weighted Harmonic Distortion
WHD @ 90
:
0.261
WHD @ 100
:
0.090
4.6

Isolation

The Logitech G635 don't block a lot of noise, so they won't be the ideal option if you game in a particularly loud environment. The slightly porous pads let noise seep into your audio, which may be bothersome if you're at a competitive event and need to focus on the multiplayer voice chat or in-game audio. Unfortunately, they're also a bit leaky at higher volumes, so they may be distracting to anyone next to you in quieter conditions. They won't be the ideal headphones to game at night without distracting your friend, roommate, or partner.

3.6 Noise Isolation
Isolation Audio
:
Overall Attenuation
:
-9.36 dB
Bass
:
0.5 dB
Mid
:
-3.69 dB
Treble
:
-25.03 dB

Like most Logitech gaming headphones, the G635's isolation performance is poor. They don’t have a noise cancelling feature and only passively isolate. In the bass range, occupied by the rumble of airplane and bus engines, they achieve no isolation. In the mid-range, important for blocking out speech, they achieve about 4dB of isolation, which is barely noticeable. In the treble range, responsible for sharp sounds like S and Ts and A/C system noises, they isolate by 25dB, which is decent.

6.5 Leakage
Leakage Audio
:
Overall Leakage @ 1ft
:
42.27 dB

The Logitech G635 have an okay leakage performance. The significant portion of their leakage sits between 400Hz and 3kHz, which is a relatively broad range. The overall level of the leakage is a bit loud too. With the music at 100dB SPL, the leakage at 1 foot away averages at 42dB and peaks at around 58dB, which is a bit above the noise floor of most offices.

6.9

Microphone

Integrated
:
No
In-line
:
No
Boom
:
Yes
Detachable Boom
:
No

The Logitech G635 have a decent boom mic. In quiet environments, speech recorded or transmitted with this microphone sounds natural and detailed, but also thin, bright, and slightly piercing. In noisy situations, it is able to separate speech from background noise to a decent degree, but might struggle a bit in extremely loud situations like a big gaming event.

6.5 Recording Quality
Recorded Speech
:
LFE
:
507.97 Hz
FR Std. Dev.
:
3.08 dB
HFE
:
10093.19 Hz
Weighted THD
:
1.745
Gain
:
10.91 dB

The Logitech G635’s boom mic has an okay recording quality. The LFE (low-frequency extension) of 508 Hz indicates a recorded/transmitted speech that sounds quite bright and thin. The HFE (high-frequency extension) is at 10kHz, which results in a full-bodied, clear, detailed speech. The response between the LFE and HFE points is quite flat, but gets elevated in the treble range, resulting in a natural voice that could be slightly sharp.

This microphone performs better than what the score shows since LFE might not as important for everyone. Overall, it definitely has better recording quality than most Bluetooth headphone microphones, which have a similar score but would sound less clear due to a lower HFE.

7.3 Noise Handling
Speech + Pink Noise :
Speech + Subway Noise :
SpNR
:
22.96 dB

The boom microphone of the Logitech G635 is decent at noise handling. It achieved a speech-to-noise ratio of 23dB in our SpNR test. This indicates that it can separate speech from ambient noise to a decent degree in most situations, but may not be suited for the loudest situations.

9.0

Active Features

The Logitech G635 is a wired headset that doesn’t have a battery. However, when plugged into a computer with the USB cable, you get access to the Logitech G Hub app, which offers tons of controls and customization options. This is one of the most complete and useful apps we’ve reviewed so far.

N/A Battery
Battery Type
:
N/A
Continuous Battery Life
:
N/A
Additional Charges
:
N/A
Total Battery Life
:
N/A
Charge Time
:
N/A
Power Saving Feature
:
N/A
Audio while charging
:
N/A
Passive Playback
:
N/A
Charging Port : N/A

These gaming headphones are wired and don’t have battery life. For a wireless headset, take a look at their wireless equivalent, the Logitech G935.

9.0 App Support
App Name : Logitech G Hub
iOS : No
Android : No
macOS : Yes
Windows : Yes
Equalizer
:
Graphic + Presets
ANC control
:
N/A
Mic Control : Yes
Room effects
:
No
Playback control
:
No
Button Mapping : Yes
Surround Sound : DTS 7.1

These gaming headphones are compatible with the new Logitech G Hub app available on Windows and Mac. This software is one of the most complete ones we’ve ever seen. It offers tons of customization options like surround sound, a 10-band EQ, and control over your Lightsync RGB lighting. You also get tons of options and control for the sound and microphone of the headset. You can map the buttons of the headphones to different sound profiles, functions, and commands related to your PC system settings. You can also launch programs, your favorite games, set macros, or even manage your music, which is very convenient. However, you only have three buttons to map.

3.9

Connectivity

The Logitech G635 are wired gaming headphones that can’t be used wirelessly in any way. They are great for watching video content or gaming thanks to their wired connection which gives you no latency. They are very versatile since you can use them with a USB or a normal analog cable on pretty much every gaming platform. However, your range will be limited by their cables’ length.

0 Bluetooth
Bluetooth Version
:
N/A
Multi-Device Pairing
:
N/A
NFC Pairing
:
N/A
Line of Sight Range
:
N/A
Default Latency
:
N/A
aptX Latency
:
N/A
aptX(LL) Latency
:
N/A

The G635 is not Bluetooth compatible. For a gaming headset with Bluetooth compatibility, check out the Turtle Beach Stealth 700, the Turtle Beach Elite 800, or the SteelSeries Arctis Pro Wireless.

Thanks to their wired connection, the Logitech G635 won’t have any delay when watching video content or gaming, which is great.

0 Non-Bluetooth Wireless
Non-BT Line of Sight Range
:
N/A
Non-BT Latency
:
N/A
9.6 Wired
Analog Audio
:
Yes
USB Audio
:
Yes
Detachable : Yes
Length : 5.3 ft
Connection : 1/8" TRRS
Wired Latency
:
14 ms

These gaming headphones are compatible with every platform since they have both audio and microphone support over USB and analog connection. For PC and PS4, you can use both, but the USB one will be needed to get access to the G Hub app on PC. However, you can’t use the USB cable on Xbox and you’ll have to wire the headphones to the controller using the 1/8” TRRS cable.

PC / PS4 Compatibility
PC / PS4 Analog
:
Audio + Microphone
PC / PS4 Wired USB
:
Audio + Microphone
PC / PS4 Non-BT Wireless
:
No
Xbox One Compatibility
Xbox One Analog
:
Audio + Microphone
Xbox One Wired USB
:
No
Xbox One Wireless
:
No
0 Base/Dock
Type
:
N/A
USB Input
:
N/A
Line In
:
N/A
Line Out
:
N/A
Optical Input
:
N/A
RCA Input
:
N/A
Dock Charging
:
N/A
Power Supply
:
N/A

These headphones don't have a dock. For a gaming headset with a dock with tons of customization options, take a look at the SteelSeries Arctis Pro GameDAC. If you want a wireless gaming headset with a charging dock, we suggest the Astro A50.

In the box

  • Logitech G635 headphones
  • 1/8" TRRS audio cable
  • USB audio cable
  • Manuals

Compared to other Headphones

The Logitech G635 are good gaming headphones that set themselves apart by their great audio reproduction and their amazing companion software that offers tons of controls and customization options. However, their microphone is slightly bright when compared to other gaming headsets. See our recommendations for the best gaming headsets, the best gaming headsets for PC, and the best PS4 headsets.

Logitech G933 Wireless Gaming Headset
SEE PRICE
Amazon.com

The Logitech G933 and Logitech G635 are practically identical in design, other than the fact the G933 is wireless and the G635 is wired. Overall, the microphone of the G933 has a better recording quality. The G635 also have better sound quality, but won’t offer the freedom of the G933’s wireless design, although you won’t have to worry about a battery life with the G635.

HyperX Cloud 2/Cloud II
SEE PRICE
Amazon.com

If you don’t care much for customization options and RGB lighting, then the HyperX Cloud II are better gaming headphones than the Logitech G635, especially thanks to their great build quality and comfortable design. They also have a better microphone for online games and offer channel mixing on their in-line remote. However, the G635 has better sound quality, especially in the treble range, and is more customizable thanks to the G Hub app.

Logitech G935 Wireless Gaming Headset
SEE PRICE
Amazon.com

The Logitech G935 and Logitech G635 are practically the same headphones, but the G935 are wireless while the G635 are wired. You get the same design and fit on both headsets, but the G935 have faux leather cup padding and the G635 have a mesh-like fabric. If you want the freedom of a wireless headset, go with the G935, but if you don’t want to manage battery life, the G635 will be a better option. There’s also a difference in the microphone recording quality and by listening to playback, we hear the G635 microphone as better even if it scores lower.

Logitech G533 Wireless Gaming Headset
SEE PRICE
Amazon.com

The Logitech G533 are better gaming headphones than the Logitech G635 if you want a wireless-only headset. Both are built in fairly the same way and have very good audio reproduction. The microphone of the G533 is slightly better, but there’s not that big of a difference. The G533 can’t be used wired, and isn’t compatible with the Xbox One. The G635 can only be used wired but is compatible with all platforms thanks to its USB and analog cables.

Logitech G430 Gaming Headset
SEE PRICE
Amazon.com

Both the Logitech G430 and the Logitech G635 are decent gaming headphones, but the G635 is better-built than the cheap, plasticky G430, and their sound quality is better. The new G Hub app is also better than the previous Logitech Gaming Software and offers more controls. You can also map different actions to the buttons on the G635, which you don’t have on the G430. However, the G430 might offer better value if you don’t mind not having RGB lighting, since they perform really well for budget headphones.

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6.2 Mixed Usage

Okay for mixed usage. The Logitech G635 are designed as gaming headphones, but they have a great audio reproduction that can be used for critical listening as well. The bulky design and poor isolation won’t be ideal to use for commuting or for sports, especially since they aren’t very stable. They don’t isolate much noise and can get a bit leaky as well, so using them at the office isn’t recommended either.

7.7 Neutral Sound

Very good for neutral listening. Their bass is extended and accurate, their mid-range is well-balanced and flat, and their treble is virtually flawless. However, their frequency response consistency is sub-par, which means they’ll perform differently on different users. These headphones are very versatile and will be suited for all music genres and will be great to reproduce video game effects as well. You can also EQ them inside their app, which is very useful and easy to do.

5.6 Commute/Travel

Poor for commuting. These headphones are one of the bulkiest designs we’ve reviewed so far. They also practically don’t isolate any low-end noises like the rumble of engines, which means they won’t be the best option to use in public transit.

5.8 Sports/Fitness

Sub-par for sports. While the Logitech G635 can be tight on the head, they aren’t very stable and will most likely fall off your head during physical exercises. They also trap quite a bit of heat inside the ear cups, which means you’ll sweat noticeably more than usual when wearing these. The G635 are also very bulky and won’t be ideal for this use case.

6.2 Office

Mediocre for the office. They don’t isolate much noise and can get leaky at high volumes, which means you might disturb surrounding colleagues. On the upside, they are fairly comfortable to wear for a while and they have great sound quality. You also won’t have to worry about the battery dying on you in the middle of your workday since they are passive.

6.1 Wireless Gaming

Decent for gaming. The G635 is one of the better sounding gaming headsets we’ve reviewed so far. The G Hub app is also amazing and offers tons of customization options with lots of controls. You won’t get any delay thanks to their wired connection, and they are comfortable to wear for long gaming sessions. However, be sure to take them off from time to time to let your ears cool off, as they trap quite a bit of heat inside the ear cups over time. Their microphone is also a bit bright when comparing it to other gaming headphones.

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