Notice: Your browser is not supported or outdated so some features of the site might not be available.
Notice: We're proud to introduce Test Bench 2.0, which overhauls our audio measurements, with new tests and usages. There's even a brand new multi-target graphing tool! You can read all about this in our changelog, featuring commentary from our Test Designer, Pierre.
- Table of Contents
- Top
- Main Differences
- Sound
- Design
- Isolation
- Microphone
- Active Features
- Connectivity
- Comments
Bose Sport Open Earbuds Truly Wireless vs Bose Ultra Open Earbuds
Side-by-Side Comparison
Products
Bose Sport Open Earbuds Truly Wireless
Bose Ultra Open Earbuds
Tested using Methodology v1.5
Updated Oct 17, 2024 04:00 PM
SEE PRICE
Amazon.comTested using Methodology v2.0
Updated Apr 23, 2025 06:30 PM
SEE PRICE
Amazon.com
TypeEarbuds
Noise CancellingNo
EnclosureOpen-Back
WirelessTruly Wireless
TransducerDynamic
MicYes
TypeEarbuds
Noise CancellingNo
EnclosureOpen-Back
Bass AmountVery Underemphasized (-18 dB)
WirelessTruly Wireless
TransducerDynamic
Treble AmountBalanced (-1 dB)
MicYes
Sound SignatureBright
Variants
- Sport Open Earbuds (Triple Black)
- Ultra Open Earbuds (Black)
- Ultra Open Earbuds (Carbon Blue)
- Ultra Open Earbuds (Chilled Lilac)
- Ultra Open Earbuds (Diamond 60th Edition)
- Ultra Open Earbuds (Lunar Blue)
- Ultra Open Earbuds (Moonstone Blue)
- Ultra Open Earbuds (Sandstone)
- Ultra Open Earbuds (Steve Lacy)
- Ultra Open Earbuds (Sunset Iridescent)
- Ultra Open Earbuds (White Smoke)
Our Verdict
Bose Sport Open Earbuds Truly Wireless
Bose Ultra Open Earbuds
The Bose Ultra Open Earbuds represent the next generation of the Bose Sport Open Earbuds Truly Wireless. Both have similarly long-lasting batteries and IPX4 ratings. The Ultra Open Earbuds are a completely different fitting design that clips on the bottom of your ears and is very stable. They sound brighter by default and have a virtual surround sound function in-app. The Sport Open Earbuds use a less comfortable and not quite as stable over-ear hook design. Their sound isn't as piercing in the highs. They also lack high-quality aptX Adaptive codecs, virtual surround sound, as well as a graphic EQ and presets in their companion app.
Check Price
Triple Black
Sport Open Earbuds
Searching
Finding storeBlack
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeCarbon Blue
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeChilled Lilac
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeDiamond 60th Edition
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeLunar Blue
Ultra Open Earbuds
Searching
Finding storeMoonstone Blue
Ultra Open Earbuds
Searching
Finding storeSandstone
Ultra Open Earbuds
Searching
Finding storeSteve Lacy
Ultra Open Earbuds
Searching
Finding storeSunset Iridescent
Ultra Open Earbuds
Searching
Finding storeWhite Smoke
Ultra Open Earbuds
Searching
Finding storeMain Differences forNeutral Sound
Neutral Sound
Threshold
Neutral Sound
5.5
Full Comparison
Sound
Sound Profile
Sound Profile
Normalization Frequency
600 Hz
Bass Amount
Very Underemphasized (-18 dB)
Bass Amount
-17.56 dB
Treble Amount
-2.6 dB
Treble Amount
Balanced (-1 dB)
Sound Signature
Bright
Frequency Response Consistency
8.5
6.1
Consistency L
Consistency R
Avg. Std. Deviation
0.3 dB
1.27 dB
Raw Frequency Response
Bass Profile: Target Compliance
1.0
0.8
Bass Profile: Target Compliance
RMS Deviation From Target
16.16 dB
26.7 dB
Low-Frequency Extension
100.79 Hz
118.15 Hz
Low Bass
-32.16 dB
-37.73 dB
Mid Bass
-8.48 dB
-14.66 dB
High Bass
3.18 dB
-2.41 dB
Mid-Range Profile: Target Compliance
8.9
9.7
Mid-Range Profile: Target Compliance
RMS Deviation From Target
1.45 dB
0.63 dB
Low Mid
1.27 dB
0.3 dB
Mid-Mid
0.26 dB
-0.28 dB
High Mid
1.62 dB
-0.82 dB
Treble Profile: Target Compliance
8.0
6.2
Treble Profile: Target Compliance
RMS Deviation From Target
3.05 dB
5.01 dB
Low Treble
1 dB
2.83 dB
Mid Treble
-4.8 dB
2.92 dB
High Treble
-6.51 dB
-5.78 dB
Peaks/Dips
5.4
5.7
Peaks/Dips Graph
Peaks
3.42 dB
2.82 dB
Dips
2.04 dB
2.86 dB
Stereo Mismatch
8.6
Frequency Response Mismatch
Phase Response Mismatch
Weighted Amplitude Mismatch
1.33
0.1 dB
Weighted Frequency Response Mismatch
2.98
1.0 dB
Weighted Phase Mismatch
42.2
1.6°
Cumulative Spectral Decay
CSD
PRTF
3.4
0.0
PRTF
PRTF Accuracy (RMS Deviation)
N/A
N/A
PRTF Size (Avg.)
N/A
N/A
PRTF Distance
N/A
N/A
Openness
9.8
Acoustic Space Excitation
4.9
Harmonic Distortion
6.9
Harmonics Levels
WHD @ 94 dB SPL
0.531
0.77%
WHD @ 104 dB SPL
0.324
0.90%
Electrical Aspects
Impedance
Sensitivity @1kHz-1V
N/A
Bluetooth Max SPL
93.2 dB
Virtual Soundstage
0.0
2.9
Virtual Soundstage
Head Modeling
No
No
Speaker Modeling
No
On/Off
Room Ambience
No
No
Head Tracking
No
On/Off
Virtual Surround
No
No
Test Settings
Firmware
1.1.2-2174+132ebd5
4.0.22
Power
On
On
Connection
Bluetooth 5.0
Bluetooth
Codec
SBC, 16-bit, 48kHz
SBC, 16-bit, 48kHz
Test Instrument
Audio Precision APx517B
EQ
No EQ
Default
ANC
No ANC
No ANC
Tip/Pad
Default
Default
Microphone
Integrated
Integrated
Imaging
4.7
Group Delay
Phase Response Mismatch
Weighted Group Delay
3.18
Weighted Phase Mismatch
42.2
1.6°
Weighted Amplitude Mismatch
1.33
0.1 dB
Weighted Frequency Mismatch
2.98
1.0 dB
Weighted Harmonic Distortion
6.9
Weighted Harmonic Distortion
WHD @ 90
0.531
0.77%
WHD @ 100
0.324
0.90%
Design
Style
Design Picture 2
Type
Earbuds
Earbuds
Enclosure
Open-Back
Open-Back
Wireless
Truly Wireless
Truly Wireless
Transducer
Dynamic
Dynamic
Comfort
7.0
8.0
Comfort Picture
Weight
0.07 lbs
0.03 lbs
Clamping Force
0 lbs
0 lbs
Controls
6.9
6.8
Controls Picture
OS Compatibility
Not OS specific
Not OS specific
Ease Of Use
Great
Good
Feedback
Good
Good
Call/Music Control
Yes
Yes
Volume Control
Yes
Yes
Microphone Control
No
No
Channel Mixing
No
No
Noise Cancelling Control
No
No
Talk-Through
No
No
Additional Controls
Voice Assistant
Presets
Breathability
0.0
Breathability After Picture
Avg.Temp.Difference
N/A
Portability
9.0
9.5
Portability Picture
L
2.5" (6.4 cm)
1.4" (3.5 cm)
W
1.9" (4.8 cm)
1.1" (2.8 cm)
H
0.8" (2.0 cm)
0.7" (1.8 cm)
Volume
3.80 in³ (62.27 cm³)
1.08 in³ (17.64 cm³)
Transmitter Required
No
No
Case
7.5
7.5
Case Picture
Type
Hard case
Hard case
L
4.5" (11.4 cm)
2.6" (6.5 cm)
W
2.8" (7.1 cm)
2.0" (5.0 cm)
H
1.2" (3.0 cm)
1.0" (2.6 cm)
Volume
15.00 in³ (245.80 cm³)
5.16 in³ (84.50 cm³)
Build Quality
8.0
8.0
Build Quality Picture
Stability
8.0
9.0
Stability Picture
Headshots 1
Angled Picture
Side Picture
Headshots 2
Front Picture
Rear Picture
Top
Top Picture
In The Box
In The Box Picture
Isolation
Noise Isolation - Full Range
0.6
0.1
Noise Isolation - Full Range Graph
Noise Cancelling
No
No
Overall Attenuation
-0.56 dB
-0.31 dB
Isolation Audio
Bass
-0.06 dB
0.12 dB
Mid
0.32 dB
0.52 dB
Treble
-1.86 dB
-1.75 dB
Noise Isolation - Common Scenarios
0.2
Noise Isolation - Common Scenarios Graph
Airplane Noise Attenuation
-0.42 dB
Airplane Noise Isolation Audio
Office Noise Attenuation
-0.32 dB
Office Noise Isolation Audio
Street Noise Attenuation
-0.44 dB
Street Noise Isolation Audio
Noise Isolation - Voice Handling
Female Voice 1
Male Voice 1
Female Voice 2
Male Voice 2
ANC Wind Handling
ANC Wind Handling Graph
ANC Wind Noise
N/A
Leakage
5.8
7.3
Leakage Audio
Overall Leakage @ 1ft
46.15 dB
37.68 dB
Microphone
Microphone Style
Integrated
Yes
Yes
In-Line
No
No
Boom
No
No
Detachable Boom
No
No
Mic
Yes
Yes
Recording Quality
7.6
6.9
Microphone Frequency Response
Recorded Speech
LFE
171.98 Hz
87.24 Hz
FR Std. Dev.
1.7 dB
3.57 dB
HFE
6,544.63 Hz
6,267.15 Hz
Weighted THD
1.48
28.627
Gain
5.63 dB
-8.63 dB
Noise Handling
6.5
7.0
SpNR
11.56 dB
18.87 dB
Noise Gate
Always On
Always On
Speech + Pink Noise Handling
6.5
7.0
Speech + Pink Noise Audio Sample
Speech + Subway Noise Handling
6.5
7.0
Speech + Subway Noise Audio Sample
Active Features
Battery
7.0
7.9
Battery Type
Rechargable
Rechargable
Continuous Battery Life
9.5 hrs
9.5 hrs
Additional Charges
0.0
2.8
Total Battery Life
9.5 hrs
26.6 hrs
Charge Time
1.2 hrs
0.8 hrs
Power-Saving Feature
Auto-Off Timer
Auto-Off Timer
Audio While Charging
No
Yes
Passive Playback
No
No
Charging Port
Proprietary
USB-C
App Support
7.0
7.0
App Picture
App Name
Bose Music
Bose Music
iOS
Yes
Yes
Android
Yes
Yes
macOS
No
No
Windows
No
No
Equalizer
No
Graphic + Presets
ANC Control
No
No
Mic Control
No
No
Room Effects
No
Yes
Playback Control
Yes
Yes
Button Mapping
Yes
Yes
Surround Support
No
No
Connectivity
Wired Connection
0.0
0.0
Cable Picture
Analog Audio
No
No
USB Audio
No
No
Detachable
No
No
Length
N/A
N/A
Connector
No Wired Option
No Wired Option
Latency - Analog
N/A
Latency - USB
N/A
N/A
Recorded Latency
N/A
Recorded Latency Connection
No Wired Audio
Bluetooth Connection
6.7
6.9
Bluetooth Version
5.1
5.3
Multi-Device Pairing
No
No
NFC Pairing
No
Quick Pair (Android)
No
Quick Pair (iOS)
No
Line Of Sight Range
153.00 ft (46.63 m)
334.65 ft (102.00 m)
Latency - SBC
329 ms
303 ms
Latency - aptX
N/A
N/A
Latency - aptX Adaptive (High Quality)
372 ms
Latency - aptX Adaptive (Low Latency)
95 ms
Latency - LDAC
N/A
Recorded Latency
Recorded Latency Codec
aptX Adaptive (Low Latency)
AAC Support
Yes
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
86 ms
Android Latency
120 ms
Wireless Connection (Dongle)
0.0
0.0
Line Of Sight Range
N/A
N/A
Latency - Dongle
N/A
N/A
Recorded Latency
N/A
PC Compatibility
Analog
No
No
Wired USB
No
No
Non-BT Wireless
No
No
PlayStation Compatibility
PS4 Analog
No
No
PS4 Wired USB
No
No
PS4 Non-BT Wireless
No
No
PS5 Analog
No
No
PS5 Wired USB
No
No
PS5 Non-BT Wireless
No
No
Xbox Compatibility
Xbox One Analog
No
No
Xbox One Wired USB
No
No
Xbox One Non-BT Wireless
No
No
Xbox Series X|S Analog
No
No
Xbox Series X|S Wired USB
No
No
Xbox Series X|S Non-BT Wireless
No
No
Base/Dock
2.2
2.2
Type
Wired USB dock
Charging Case
USB Input
No
No
Line In
No
No
Line Out
No
No
Optical Input
No
No
RCA Input
No
No
Dock Charging
Yes
Yes
Power Supply
USB
USB-C
Check Price
Triple Black
Sport Open Earbuds
Searching
Finding storeBlack
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeCarbon Blue
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeChilled Lilac
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeDiamond 60th Edition
Ultra Open Earbuds
Searching
Finding storeTriple Black
Sport Open Earbuds
Searching
Finding storeLunar Blue
Ultra Open Earbuds
Searching
Finding storeMoonstone Blue
Ultra Open Earbuds
Searching
Finding storeSandstone
Ultra Open Earbuds
Searching
Finding storeSteve Lacy
Ultra Open Earbuds
Searching
Finding storeSunset Iridescent
Ultra Open Earbuds
Searching
Finding storeWhite Smoke
Ultra Open Earbuds
Searching
Finding store
Bose Sport Open Earbuds Truly Wireless
Bose Ultra Open Earbuds
Comments
Bose Sport Open Earbuds Truly Wireless vs Bose Ultra Open Earbuds: 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.