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Bluedio U Plus/UFO Wireless Headphones Review

Tested using Methodology v1.3.1
Updated Jul 27, 2017 at 04:00 pm
Bluedio U Plus/UFO Wireless Picture
Test Methodology v1.3.1
6.0
Mixed Usage
5.2
Neutral Sound
6.4
Commute/Travel
6.7
Sports/Fitness
6.1
Office
4.5
Wireless Gaming
6.1
Wired Gaming
5.0
Phone Call
Type Over-ear
Enclosure Closed-Back
Wireless Yes
Noise Cancelling No
Mic Yes
Transducer Dynamic

The Bluedio U Plus are decently sturdy and comfortable wireless headphones with a sleeker design than the rest of the Bluedio lineup. Unfortunately, they have a sub-par sound quality that may be a deal breaker for most, especially at their price range. They're also a bit too bulky for sports and do not block enough noise to use in loud environments.

Our Verdict

6.0 Mixed Usage

The Bluedio UFO are mediocre mixed usage headphones. They have a sleek design, an above-average build quality, and a decently comfortable fit. Unfortunately, their sound quality may be a deal breaker for most especially considering their price range. They also do not block a lot of noise so they won't be the ideal headphones for commuting or loud environments. They're also too bulky and unstable to be suitable for sports.

5.2 Neutral Sound

Poor for neutral listening. Their sound profile overemphasizes the low-end and has a big dip in the mid-range which makes instruments and vocals feel a bit distant on most tracks. Turning on the EQ effect adds even more bass and muddiness to their audio reproduction which is a bit disappointing. Unfortunately, they also have a relatively small Soundstage due to their closed back design. Overall this results in a boomy and muddy sound quality that won't be ideal for most listeners and will most likely be a deal breaker for more neutral listeners.

See our Neutral Sound recommendations
6.4 Commute/Travel

Average-at-best for commuting. They do not block enough noise to be a good option in very loud environments. On the upside, they have an easy-to-use control scheme and they're decently comfortable but won't be the easiest headphone to carry around.

See our Commute/Travel recommendations
6.7 Sports/Fitness

Average for sports. They're big and bulky headphones that aren't the most stable to run with. However, they're wireless and have a fairly simple and straightforward control scheme so that you don't have to pull out your phone or Bluetooth device to skip tracks.

See our Sports/Fitness recommendations
6.1 Office

Average-at-best for office use. They won't block that much ambient noise so you may still be able to hear whats going on around you in a lively office. They also leak a bit at high volumes so they may be distracting to those around you in quieter conditions.

See our Office recommendations
6.1 Wired Gaming
5.0 Phone Call
  • 6.0 Mixed Usage
  • 5.2 Neutral Sound
  • 6.4 Commute/Travel
  • 6.7 Sports/Fitness
  • 6.1 Office
  • 4.5 Wireless Gaming
  • 6.1 Wired Gaming
  • 5.0 Phone Call
Pros
  • Sturdy build quality.
  • Decent wireless range and battery life.
  • Efficient control scheme.
Cons
  • Poor sound quality.
  • Below-average Noise isolation.
  • Bulky design.
  1. Update 11/21/2019: Converted to Test Bench 1.3.1.
  2. Update 11/6/2019: Converted to Test Bench 1.3.
  3. Update 2/16/2018: Converted to Test Bench 1.2.
  4. Update 9/28/2017: The microphone has been tested with our new methodology, as explained here
  5. Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.

Check Price

Test Results

Design
Design
Style

The Bluedio U plus have a very different look to the Bluedio Turbine line up. The hinges rotate instead of folding and do not protrude outwards which give the U-Plus a more sleek design. They look and feel like the Beats Pro and even have the same daisy chain and locking mechanism for the audio cable. They come in two color schemes; black and white, and are they're also considerably larger and stand out more than the other models in the Bluedio lineup.

7.0
Design
Comfort
Weight 0.9 lbs
Clamping Force
1.1 lbs

The Bluedio U Plus are above-average comfortable headphones. They're well padded and have sufficiently large ear cups to fit most listeners. However, they're a bit tight on the head and relatively heavy so they may get fatiguing after a while.

7.1
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Decent
Feedback Okay
Call/Music Control Yes
Volume Control Yes
Microphone Control No
Channel Mixing
N/A
Noise Cancelling Control N/A
Talk-Through
N/A
Additional Buttons Bass Effect

The Bluedio U Plus have a much better control scheme than on previous models. The buttons are clicky and ergonomically laid out on the right ear cup. They provide the essential functions; call/Music, track-skipping and volume controls. They also have an additional feature that lets you switch between EQ effects by holding the track skipping buttons. Forward to turn on the effect and Rewind to turn off.

6.7
Design
Breathability
Avg.Temp.Difference 5.2 C
5.8
Design
Portability
L 4.8 "
W 7.3 "
H 3.6 "
Volume 126 Cu. Inches
Transmitter Required N/A

The Bluedio U Plus are somewhat portable thanks to their folding design. However, they're still quite large headphones compared to other mid-sized over-ear models. They're not the easiest to carry around on your person but when folded they take up less space and should easily fit in your bag.

7.5
Design
Case
Type Hard case
L 8 "
W 8.6 "
H 3.9 "
Volume 268 Cu. Inches

Comes with a sturdy hard case that will protect the U Plus against scratches drops and minor water damage. However, the case does add quite a bit of bulk making the already large headphones a little less portable.

7.0
Design
Build Quality

The Bluedio U are decently well-built but not as durable as the much cheaper Bluedio T4. They have a sturdy metal frame to reinforce the headband and the ear cups are decently dense. They won't break easily from a couple of drops but the enclosures of the ear cups feel a lot cheaper than that of the T4s. The revolving hinges are also potential weak points that may loosen over time.

6.5
Design
Stability

The Bluedio UFO have a tight fit that prevents them from being too unstable. They're also wireless so they won't get yanked off your head because the audio cable got caught on something. However, they are bulky and heavy headphones so they sway a lot when running so they won't be the ideal headphones for sports.

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

  • Bluedio U (UFO) Plus  headphones
  • Audio cable
  • Carrying Case
  • USB charging cable

Sound
Sound
Sound Profile
Bass Amount
6.07 db
Treble Amount
0.16 db
6.6
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.73 dB

Average Consistency performance. In the Bass Range, these headphones perform quite consistently across our multiple human subjects, except for our subject who wears glasses. It seems that glasses could break the air-tight seal that these headphones need for creating their Bass and cause more than 3dB of drop in Bass below 200Hz. In the Treble Range, their consistency is good.

Sound
Raw Frequency Response
5.4
Sound
Bass Accuracy
Std. Err.
6.52 dB
Low-Frequency Extension
10 Hz
Low-Bass
6.96 dB
Mid-Bass
7.94 dB
High-Bass
6.18 dB

Poor Bass Range performance. The response is relatively flat, but consistently over our target by more than 7dB. This makes the Bass of these headphones quite overpowering and boomy.

3.3
Sound
Mid Accuracy
Std. Err.
8.95 dB
Low-Mid
-8.03 dB
Mid-Mid
-10.9 dB
High-Mid
1.17 dB

Poor Mid Range performance. Low-mid and mid are practically missing, due to the 15dB dip surrounding 500Hz. This significantly pushes vocals and leads to the back of the mix. On the other hand, high-mid is relatively flat and well-balanced.

4.5
Sound
Treble Accuracy
Std. Err.
6.46 dB
Low-Treble
2.44 dB
Mid-Treble
-4.94 dB
High-Treble
-6.08 dB

Poor and inconsistent Treble Range performance. Low-treble is slightly overemphasized, adding a bit of tinny quality to the sound. The dip around 7KHz hurts some of the sibilances (S and T sounds) to the point of making the sound lispy. Conversely, the peak around 10KHz will have the opposite effect on some higher frequency sibilances, making them sharp and piercing.

4.4
Sound
Peaks/Dips
Peaks
3.62 db
Dips
4.7 db
8.1
Sound
Imaging
Weighted Group Delay
0.39
Weighted Amplitude Mismatch
0.65
Weighted Frequency Mismatch
1.76
Weighted Phase Mismatch
12.2
4.5
Sound
Soundstage
PRTF Accuracy (Std. Dev.)
3.83 dB
PRTF Size (Avg.)
-0.7 dB
PRTF Distance
9.79 dB
Openness
4.5
Acoustic Space Excitation
4.7
7.6
Sound
Weighted Harmonic Distortion
WHD @ 90
0.158
WHD @ 100
0.207
Isolation
5.3
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-14.16 dB
Bass
0.91 dB
Mid
-9.75 dB
Treble
-34.46 dB

Poor Isolation performance. The Bluedio U headphones don't have active noise-cancellation and isolate only passively. They achieve no isolation in the Bass Range. In the Mid Range they achieve about 9dB of reduction, which is decent. In the Treble Range they reduce the outside noise by more than 34dB which is good.

6.2
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
43.87 dB

Mediocre Leakage performance. The significant portion of the leakage sits between 500Hz and 5KHz which is a relatively broad range. The overall level of the leakage is also relatively high, especially around 3KHz.

Microphone
Microphone
Microphone Style
Integrated
Yes
In-line
No
Boom
No
Detachable Boom
N/A
6.1
Microphone
Recording Quality
Recorded Speech
LFE
375.09 Hz
FR Std. Dev.
3.42 dB
HFE
3272.31 Hz
Weighted THD
7.237
Gain
25.06 dB
3.4
Microphone
Noise Handling
Speech + Pink Noise
Speech + Subway Noise
SpNR
3.68 dB
Active Features
7.8
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
20.6 hrs
Additional Charges
0
Total Battery Life
20.6 hrs
Charge Time
3.4 hrs
Power Saving Feature
No
Audio While Charging
Yes
Passive Playback
Yes
Charging Port micro-USB

The Bluedio UFO have an above-average battery life of 20 hours but take a considerably long time to charge. They don't have an auto off feature but can charge while playing. They can also be used completely passively with the audio cable, which makes them a decent option for the office.

0
Active Features
App Support
App Name N/A
iOS N/A
Android N/A
macOS N/A
Windows N/A
Equalizer
N/A
ANC Control
N/A
Mic Control N/A
Room effects
N/A
Playback Control
N/A
Button Mapping N/A
Surround Sound N/A
Connectivity
7.0
Connectivity
Bluetooth
Bluetooth Version
4.1
Multi-Device Pairing
No
NFC Pairing
No
Line of Sight Range
123 ft
Default Latency
148 ms
aptX Latency
N/A
aptX(LL) Latency
N/A

The Base Latency of the Bluedio U Plus is a bit better than most Bluetooth headphones. However, it's still a bit too laggy for watching movies and gaming. You may get used to it during long videos but it won't be the most pleasurable viewing experience.

0
Connectivity
Non-Bluetooth Wireless
Non-BT Line of Sight Range
N/A
Non-BT Latency
N/A
9.5
Connectivity
Wired
Analog Audio
Yes
USB Audio
No
Detachable Yes
Length 4.5 ft
Connection 1/8" TRS
Wired Latency
0 ms
Connectivity
PC / PS4 Compatibility
PC / PS4 Analog
Audio Only
PC / PS4 Wired USB
No
PC / PS4 Non-BT Wireless
No
Connectivity
Xbox One Compatibility
Xbox One Analog
Audio Only
Xbox One Wired USB
No
Xbox One Wireless
No
0
Connectivity
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

Bluedio U Plus/UFO Wireless Price

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