Get insider access
Preferred headphones store

Ultimate Ears FITS Truly Wireless Headphones Review

Tested using Methodology v1.5
Reviewed Apr 29, 2021 at 10:29 am
Ultimate Ears FITS Truly Wireless Picture
6.8
Neutral Sound
7.1
Commute/Travel
8.3
Sports/Fitness
6.9
Office
5.7
Wireless Gaming
5.6
Wired Gaming
6.5
Phone Calls
Type Earbuds
Enclosure Closed-Back
Wireless Truly Wireless
Noise Cancelling No
Mic Yes
Transducer Dynamic

The Ultimate Ears FITS Truly Wireless come with a lightform technology that's designed to mold the tips to fit the unique shape of your ears while using their companion app to walk you through the fitting process. They have a very comfortable and stable fit, and they even have a graphic EQ and presets to help you customize their sound more to your liking. Unfortunately, their passive noise isolation is disappointing, and even with the ear tips fitted to your ears, they still let in a lot of background noises.

Our Verdict

6.8 Neutral Sound

The Ultimate Ears FITS are adequate for neutral sound. Out-of-the-box, they have a pretty neutral sound profile that's suitable for listening to lots of different audio genres, though sibilants like cymbals can sound a bit sharp and piercing. They also struggle to reproduce a thumpy low-bass. However, there's a graphic EQ and presets available in their companion app to help you customize their sound more to your liking.

Pros
  • Well-built, portable design.
  • Graphic EQ and presets.
Cons
  • Lacks some low-bass.
  • Bad passive soundstage.
7.1 Commute/Travel

The Ultimate Ears FITS are satisfactory for commute and travel. They have a portable design and a comfortable fit that makes them suitable for long days on the go. Unfortunately, their noise isolation performance is disappointing, so you can still hear the sounds of people talking around you as well as the low rumbles of bus and plane engines.

Pros
  • Well-built, portable design.
Cons
  • Disappointing noise isolation.
8.3 Sports/Fitness

The Ultimate Ears FITS are great for sports. These small, lightweight in-ears come with a unique design that lets you mold the ear tips to fit your ears, resulting in a comfortable, stable fit. They're well-built, and thanks to their in-ear design, they shouldn't make you sweat more than usual during your workouts. However, they don't have an advertised IP rating for water resistance, though we don't test for this.

Pros
  • Well-built, portable design.
  • Moldable ear tips help create a comfortable fit.
Cons
  • No advertised IP rating for water resistance.
6.9 Office

The Ultimate Ears FITS are okay for office use. Thanks to their moldable ear tips, you can get a very comfortable fit that's suitable for long days at the office. They don't leak a lot of noise, so you can crank up the volume without really bothering your coworkers. Unfortunately, their noise isolation performance is disappointing, and their 7.8-hour continuous battery life may not last through long shifts.

Pros
  • Well-built, portable design.
  • Moldable ear tips help create a comfortable fit.
Cons
  • Disappointing noise isolation.
  • No multi-device pairing.
5.7 Wireless Gaming

The Ultimate Ears FITS aren't compatible with PlayStation or Xbox consoles. You can use them with Bluetooth-enabled PCs, but their latency is likely too high to be suitable for wireless gaming.

5.6 Wired Gaming

The Ultimate Ears FITS can't be used wired, so they aren't suitable for wired gaming.

6.5 Phone Calls

The Ultimate Ears FITS aren't bad for phone calls. Their integrated microphone has a fair recording quality, so your voice is understandable but also a bit thin and unnatural. The mic can struggle to separate your voice from background noises, though, so they're better suited to taking phone calls from quiet settings.

Pros
  • Well-built, portable design.
Cons
  • Disappointing noise isolation.
  • 6.8 Neutral Sound
  • 7.1 Commute/Travel
  • 8.3 Sports/Fitness
  • 6.9 Office
  • 5.7 Wireless Gaming
  • 5.6 Wired Gaming
  • 6.5 Phone Calls
  1. Updated Jun 29, 2021: Converted to Test Bench 1.5.

Test Results

perceptual testing image
Design
Design
Style

The Ultimate Ears FITS are truly wireless in-ears with a unique design. Their ear tips are a bit large since they're designed to mold to fit your ears for personalized comfort. The earbud is long and skinny, with an Ultimate Ears logo printed on it. They come in three color variants: 'Midnight Blue', 'Grey', and 'Lilac'.

8.0
Design
Comfort
Weight 0.03 lbs
Clamping Force
0 lbs

The Ultimate Ears FITS are impressively comfortable. Using their app, their lightform technology creates a custom fit by molding the ear tips to your ears in less than a minute. They're lightweight and they don't put a lot of pressure on your ears, even when you make an input on their touch-sensitive controls. They also don't go very deep into your ear canal, which is nice. That said, they're a bit bulky and stick out of your ears, which may be inconvenient for some listeners.

Note: The image shows the headphones after they've been molded to fit our test dummy head.

6.6
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Good
Feedback Decent
Call/Music Control Yes
Volume Control Yes
Microphone Control No
Channel Mixing
No
Noise Cancelling Control No
Talk-Through
No
Additional Controls Voice Assistant

The Ultimate Ears FITS have fair controls. Using the companion app, you can map the four touch-sensitive controls to your liking, but by default, it's play/pause for all commands. Even though the customization is somewhat limited, you can set the controls to play/pause your audio, skip tracks forward/backward, and adjust the volume up and down in any combination, so you can have track skip forward on the left earbud while you can lower the volume on the right earbud if you want. You can set the controls to manage the voice assistant too. However, you can't change the controls that let you answer/end calls.

Overall, the controls are easy to use, but sometimes the commands don't register on the first try. There's some audible feedback when you connect and disconnect the earbuds, reach min/max volume, and make a command. However, the same chime is used for minimum and maximum volume, which may be confusing for some listeners.

9.2
Design
Breathability
Avg.Temp.Difference 0.8 ยฐC

The Ultimate Ears FITS are incredibly breathable. Thanks to their truly wireless design, they don't trap a lot of heat in your ears. You shouldn't really feel a temperature difference while wearing them, and you shouldn't sweat more than usual.

9.3
Design
Portability
L 1.5" (3.8 cm)
W 1.4" (3.6 cm)
H 1.0" (2.5 cm)
Volume 2.10 inยณ (34.41 cmยณ)
Transmitter Required No

The Ultimate Ears FITS are fantastically portable. Their truly wireless design is small and lightweight, and they should easily fit into your pockets. They also come with a small carrying case that should fit into most pockets or bags.

7.0
Design
Case
Type Hard case
L 2.8" (7.1 cm)
W 2.0" (5.1 cm)
H 1.1" (2.8 cm)
Volume 6.20 inยณ (101.60 cmยณ)

The case is decent. It's small and can be used to charge the headphones. There's also a button on the inside of the case that you can use for Bluetooth pairing. Unfortunately, the lid is quite thin, and the case is prone to collecting fingerprints.

7.5
Design
Build Quality

The Ultimate Ears FITS have a good build quality. They're mostly made of a silicone-like plastic, which feels quite solid and durable. However, their case is prone to collecting fingerprints, which can be inconvenient. Also, unlike some of the other truly wireless headphones we've tested, they don't have an advertised IP rating for water resistance, though we don't test for this.

8.0
Design
Stability

These headphones are impressively stable. Though they stick out of your ears a bit, they shouldn't fall off during your workouts. That said, they may accidentally register commands if you're shaking your head intensely.

Design
Headshots 1
Design
Headshots 2
Design
Top
Design
In The Box

  • Ultimate Ears FITS earbuds
  • Charging case
  • USB-C to USB-A charging cable
  • Manuals

Sound
Sound
Sound Profile
Bass Amount
-2.36 dB
Treble Amount
-1.94 dB

The Ultimate Ears FITS have a pretty neutral sound profile. They're lacking a bit of low-bass, so you don't feel the deep thump and rumble in bass-heavy genres like EDM, but there's a little extra warmth and boom in the high-bass that some listeners may enjoy. Vocals and lead instruments are pretty clear and present in the mix, though sibilants like S and T sounds can be honky and harsh. There's also a graphic EQ and presets available in the Ultimate Ears Fits companion app to help you customize their sound.

6.7
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.69 dB

The Ultimate Ears FITS have okay frequency response consistency. There's some inconsistency in the bass and treble delivery, so depending on their fit, seal, and positioning on your head, they may sound a bit different each time you use them. That said, they're a bit difficult to test since they're molded to fit our dummy head's ears. We also can't subjectively confirm our results with this unit. However, we believe they perform a bit more consistently than this test is showing and may actually be an issue with our testing dummy.

Sound
Raw Frequency Response
7.7
Sound
Bass Accuracy
Std. Err.
2.78 dB
Low-Frequency Extension
92.43 Hz
Low-Bass
-4.64 dB
Mid-Bass
-1.94 dB
High-Bass
1.82 dB

The Ultimate Ears FITS have good bass accuracy. Although the ear tips are molded to your own individual ear, they still lack a bit of low and mid-bass, so you don't really feel the deep thump and punch in bass-heavy genres like EDM. That said, there's a slight overemphasis in the high-bass that adds some warmth to the mix.

8.5
Sound
Mid Accuracy
Std. Err.
2 dB
Low-Mid
2.28 dB
Mid-Mid
-1.56 dB
High-Mid
-0.03 dB

These headphones have amazing mid accuracy. The range is pretty neutral and balanced, so vocals and lead instruments are clear and present in the mix.

7.1
Sound
Treble Accuracy
Std. Err.
4.25 dB
Mid-Treble
4 dB
Low-Treble
-2.14 dB
High-Treble
-12.59 dB

The Ultimate Ears FITS have fair treble accuracy. The underemphasized low-treble can hurt the comprehensibility of vocals and lead instruments slightly, while the overemphasized mid-treble makes sibilants like S and T sounds honky and harsh.

6.3
Sound
Peaks/Dips
Peaks
2.91 dB
Dips
0.94 dB

The Ultimate Ears FITS have okay peaks and dips performance. There's some frequency mismatch in the low-bass range, so your audio may be lacking slight rumble in one ear while having extra thump in the other. There's also a peak in the high-bass to low-mid ranges that can add a boomy quality to the mix, which slightly muddies vocals and lead instruments. The dip in the mid-mids nudges those same instruments slightly towards the back of the mix. The peak in the mid-treble makes sibilants like cymbals very harsh and piercing.

8.1
Sound
Imaging
Weighted Group Delay
0.09
Weighted Phase Mismatch
4.4
Weighted Amplitude Mismatch
0.89
Weighted Frequency Mismatch
3.5

The Ultimate Ears FITS have a great imaging performance. Their weighted group delay falls below the audibility threshold, resulting in a tight bass and transparent treble. Also, the L/R drivers of our unit are well-matched in phase and amplitude response, which helps to accurately place and localize objects like footsteps and voices within the stereo image. There's a bit of frequency mismatch, however, so there may be 'holes' in the stereo image at certain frequencies. That said, our results are only valid for our test unit, so your experience may vary.

1.4
Sound
Passive Soundstage
PRTF Accuracy (Std. Dev.)
N/A
PRTF Size (Avg.)
N/A
PRTF Distance
N/A
Openness
5.4
Acoustic Space Excitation
1.1

Like most truly wireless in-ears, these headphones have a terrible passive soundstage performance. Due to their design, they don't interact with the outer ear, which is one of the key factors in creating a large and out-of-body soundstage. As a result, audio seems like it's coming from inside your head, rather than from speakers placed all around you.

0
Sound
Virtual Soundstage
Head Modeling
No
Speaker Modeling
No
Room Ambience
No
Head Tracking
No
Virtual Surround
No
7.6
Sound
Weighted Harmonic Distortion
WHD @ 90
0.394
WHD @ 100
0.125

These headphones have a good WHD performance. There are a couple of small peaks in the treble range at normal volume levels, but it shouldn't be very noticeable. All frequencies otherwise fall within good limits, which results in clear and pure audio reproduction.

Sound
Test Settings
Firmware
1.1.8
Power
On
Connection
Bluetooth 5.0
Codec
aptX, 16-bit, 48kHz
EQ
UE Signature
ANC
No ANC
Tip/Pad
Silicone (Custom Molded)
Microphone
Integrated

These are the settings we used to test these headphones. Our results are only valid when using these settings.

Isolation
4.4
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-12.61 dB
Bass
-0.04 dB
Mid
-9.01 dB
Treble
-29.49 dB

The Ultimate Ears FITS have a disappointing noise isolation performance. Even when the tips are molded to fit the unique shape of your ears, they still struggle to block out bass-heavy background noises like bus and plane engines as well as mid-range sounds like people talking around you. They do a better job reducing higher-frequency noises, like the hum from AC units.

9.1
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
26.74 dB

The Ultimate Ears FITS have an incredible leakage performance. They don't leak a lot of audio, and escaping sound is quite thin. If you're listening to audio at a high volume, it shouldn't really bother those around you unless you're in a very quiet setting like a library.

Microphone
Microphone
Microphone Style
Integrated
Yes
In-Line
No
Boom
No
Detachable Boom
No
6.7
Microphone
Recording Quality
Recorded Speech
LFE
223.03 Hz
FR Std. Dev.
3.97 dB
HFE
6,177.3 Hz
Weighted THD
2.551
Gain
1.1 dB

The integrated microphone has an alright recording quality. Your voice sounds clear to whoever's on the other end of the line, but also a bit thin and unnatural.

6.8
Microphone
Noise Handling
SpNR
15.56 dB
Noise Gate
Always On
Speech + Pink Noise Handling
7.0
Speech + Pink Noise Audio Sample
Speech + Subway Noise Handling
6.5
Speech + Subway Noise Audio Sample

The mic has a passable noise handling performance. It can struggle to separate your voice from background noises, even if you're in a moderately noisy environment.

Active Features
6.5
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
7.8 hrs
Additional Charges
1.5
Total Battery Life
19.5 hrs
Charge Time
1.2 hrs
Power-Saving Feature
No
Audio While Charging
Yes
Passive Playback
No
Charging Port USB-C

These headphones have an alright battery performance. They last for almost eight hours off of a single charge. Also, their portable charging case offers around 1.5 extra charges for when you're on the go. You can also use one earbud while the other one charges, which is handy. Keep in mind that battery life can vary depending on usage, so your real-world experience may vary.

8.0
Active Features
App Support
App Name Ultimate Ears Fits App
iOS Yes
Android Yes
macOS No
Windows No
Equalizer
Graphic + Presets
ANC Control
No
Mic Control No
Room Effects
No
Playback Control
No
Button Mapping Yes
Surround Support
No

The Ultimate Ears Fits App is great. You can use the app to mold the earbud tips to the unique shape of your ears for the best possible fit. You can only mold the earbuds once, but you can also ask the company to send you another pair if something happens during the molding process. There's also a graphic EQ and presets available to help you customize their sound more to your liking.

Connectivity
6.8
Connectivity
Bluetooth
Bluetooth Version
5.0
Multi-Device Pairing
No
NFC Pairing
No
Line Of Sight Range
148.00 ft (45.11 m)
PC Latency (SBC)
281 ms
PC Latency (aptX)
282 ms
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
80 ms
Android Latency
53 ms

The Ultimate Ears FITS have a fair Bluetooth performance. They don't support multi-device pairing, which can be inconvenient if you like to switch your audio source frequently. Also, their latency with PCs is likely too high to be suitable for gaming or streaming videos. That said, they perform better with iOS and Android devices. However, some apps compensate for latency differently, so your real-world experience may vary.

0
Connectivity
Non-Bluetooth Wireless
Non-BT Line Of Sight Range
N/A
Non-BT Latency
N/A
0
Connectivity
Wired
Analog Audio
No
USB Audio
No
Detachable No
Length N/A
Connection
No Wired Option
Analog/USB Audio Latency
N/A

The Ultimate Ears FITS are wireless-only. They come with a USB-C to USB-A cable, but it's just for charging their case.

Connectivity
PC Compatibility
Analog
No
Wired USB
No
Non-BT Wireless
No
Connectivity
PlayStation Compatibility
PS4 Analog
No
PS4 Wired USB
No
PS4 Non-BT Wireless
No
PS5 Analog
No
PS5 Wired USB
No
PS5 Non-BT Wireless
No
Connectivity
Xbox Compatibility
Xbox One Analog
No
Xbox One Wired USB
No
Xbox One Non-BT Wireless
No
Xbox Series X|S Analog
No
Xbox Series X|S Wired USB
No
Xbox Series X|S Non-BT Wireless
No

These headphones aren't compatible with Xbox One or Xbox Series X consoles.

2.2
Connectivity
Base/Dock
Type
Charging Case
USB Input
No
Line In
No
Line Out
No
Optical Input
No
RCA Input
No
Dock Charging
Yes
Power Supply
USB-C

The Ultimate Ears FITS charging case offers around 1.5 extra charges. You can charge the case using the included USB-C to USB-A cable.

Differences Between Sizes And Variants

The Ultimate Ears FITS come in three different color variants: 'Grey', 'Lilac', and 'Midnight Blue'. We tested the 'Midnight Blue' variant, and you can see the label for the model we tested here. We expect the other color variants to perform similarly.

If you come across another version of these headphones, let us know in the discussions so we can update our review.

Compared To Other Headphones

The Ultimate Ears FITS are impressively comfortable and stable truly wireless in-ears that come with unique moldable ear tips to help get the best possible fit. They also come with a graphic EQ and presets to help you customize their sound, which is handy. However, their noise isolation performance is disappointing, and they lack some low-bass out-of-the-box.

See also our recommendations for the best truly wireless earbuds, the best earbuds and in-ears, and the best wireless Bluetooth earbuds.

Samsung Galaxy Buds+ Truly Wireless

The Samsung Galaxy Buds+ Truly Wireless are better headphones than the Ultimate Ears FITS Truly Wireless. The Samsung have a more neutral sound profile out-of-the-box and a more consistent audio delivery across different users. They isolate against more background noise, and they have longer continuous battery life. However, the Ultimate Ears are more comfortable thanks to their moldable ear tips, and they come with a graphic EQ for more sound customization.

SteelSeries Arctis Pro Wireless

The Ultimate Ears FITS Truly Wireless and the SteelSeries Arctis Pro Wireless are very different headphones, so you may prefer one over the other. The Ultimate Ears are truly wireless in-ears with a smaller, more portable design and a more comfortable, stable in-ear fit. However, the SteelSeries are gaming-oriented over-ears with a better microphone performance and built-in support for non-Bluetooth wireless. They're better-built with a more neutral out-of-the-box sound profile, and they're compatible with PS4 and Xbox One consoles.

Apple AirPods 2 Truly Wireless 2019

The Ultimate Ears FITS Truly Wireless are better headphones than the Apple AirPods 2 Truly Wireless 2019. The Ultimate Ears have a more balanced sound profile out-of-the-box, and thanks to their graphic EQ and presets, they offer more sound customization options. They have better noise isolation and a more stable fit thanks to their moldable ear tips, too. However, the Apple are better-built.

JBL Reflect Mini 2 Wireless

Depending on your listening habits, you may prefer either the JBL Reflect Mini 2 Wireless or the Ultimate Ears FITS Truly Wireless. The JBL have a longer continuous battery life and a better noise isolation performance. However, the Ultimate Ears are better-built with a more comfortable fit thanks to their moldable ear tips. They also come with a graphic EQ and presets to help you customize their sound.

JBL CLUB PRO+ TWS True Wireless

The JBL CLUB PRO+ TWS True Wireless are better headphones than the Ultimate Ears FITS Truly Wireless. The JBL are better-built with a more neutral sound profile out-of-the-box. They also have better noise isolation. However, thanks to their moldable ear tips, the Ultimate Ears have a more comfortable and stable fit.

Anker Soundcore Liberty Air 2 Pro Truly Wireless

Depending on your listening habits, you may prefer either the Anker Soundcore Liberty Air 2 Pro Truly Wireless or the Ultimate Ears FITS Truly Wireless. The Ultimate Ears have a more comfortable and stable fit thanks to their moldable ear tips. However, the Anker have a more neutral sound profile out-of-the-box, with a more consistent audio delivery and better noise isolation.

Skullcandy Dime True Wireless

The Ultimate Ears FITS Truly Wireless are better headphones than the Skullcandy Dime True Wireless. The Ultimate Ears come with moldable ear tips that offer a more comfortable and stable fit. Their continuous battery life is longer, and they come with a graphic EQ and presets to help you customize their sound. That said, the Skullcandy have better noise isolation.

Jabra Elite Active 75t Truly Wireless

The Jabra Elite Active 75t Truly Wireless are better headphones than the Ultimate Ears FITS Truly Wireless. They have better noise isolation and a more consistent audio delivery across different listeners. Some users may also prefer their bass-heavy sound profile out-of-the-box. However, thanks to their moldable ear tips, the Ultimate Ears have a more comfortable and stable fit.

+ Show more

Recommended Articles

Discussions