ALERT
Ultimate Ears Boom 3 vs Bose SoundLink Flex
Best For
Best for Outdoor Parties
Ultimate Ears Boom 3
Longer Battery Life
Ultimate Ears Boom 3
Better Sound Clarity
Bose SoundLink Flex
Longer Bluetooth Range
Ultimate Ears Boom 3
Best for USB-C Charging
Bose SoundLink Flex
The Ultimate Ears Boom 3 and Bose SoundLink Flex are portable Bluetooth speakers designed for music lovers who want durable, water-resistant audio on the go. The Boom 3 stands out with its claimed 15-hour battery life, Bluetooth 5.0, an impressive 45-meter Bluetooth range, and 360-degree sound. The Bose SoundLink Flex focuses on clear vocals, balanced bass and treble, and flexible listening positions. Both feature IP67 water and dust resistance, making them suitable for outdoor adventures and travel. Your choice comes down to whether you prioritize longer playback and wider connectivity range or Bose's emphasis on balanced sound quality.
Verdict
The Ultimate Ears Boom 3 is the stronger choice for outdoor gatherings, longer listening sessions, and users who want 360-degree sound with a longer claimed battery life. Its 15-hour playback and 45-meter Bluetooth range give it an advantage over the Bose SoundLink Flex on paper. However, the Bose SoundLink Flex is worth considering if clear vocals, balanced audio, and USB-C charging matter more to you. Both offer IP67 protection, so either can suit travel and outdoor use.
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| Specification | ||
|---|---|---|
| Price | 15995.00 |
15900.00 |
| Brand | Ultimate Ears |
Bose |
| Model No | Boom 3 |
SoundLink Flex |
| Wired / Wireless | Bluetooth Speaker Specification |
Bluetooth Speaker Specification |
| Driver Type | Dynamic |
Dynamic |
| Driver Diameter | NA |
NA |
| Impedance | NA |
NA |
| Sensitivity | 90 dBC |
NA |
| Frequency Response | 90 Hz - 20000 Hz |
NA |
| Maximum Power Input | 5 V / 2A |
NA |
| Maximum Power Output | 90 W ( RMS ) Two 2” Drivers Two 2” x 4” Passive Radiators |
High-Quality Audio |
| Wireless / Bluetooth Details | ||
| Wireless Technology | Bluetooth |
Bluetooth |
| Bluetooth Version | 5.0 |
4.2 |
| Compatible Profiles | All Bluetooth Devices |
All Bluetooth Devices |
| Supported Codecs | A2DP |
NA |
| Battery Type | Lithium-Ion Batteries |
Lithium-Ion Batteries |
| Bluetooth Range | 45 Meters |
9 Meters |
| Battery Life | 15 Hours |
12 Hours |
| Charging Time | 2 Hours |
4 Hours |
| Signal to Noise Ratio | NA |
NA |
| Noise Cancelling | Passive |
NA |
| Aux Connectivity | No |
No |
| Weight | 608 Gram |
600 Gram |
| Dimensions | 184 mm X 73 mm X 73 mm |
90 mm X 201 mm X 52 mm |
| Available Colors | Black, Blue, Red, Pink |
Black, White, Blue, Red |
| Accessories | Ultimate Ears Boom 3 Bluetooth Speaker Quick Start Guide |
Bose SoundLink Flex Bluetooth Speaker USB-C To USB-A Charging Cable |
| Other Features | 2-YEAR Limited Hardware warranty. BOOM 3 delivers loud and immersive 360° sound with deep and accurate bass, all carefully balanced so you can hear every note. BOOM 3 runs on the same battery cell technology as some of the most crave-worthy electric cars. BOOM 3 will stay powered and pumping tunes for 15 hours. BOOM 3 is completely waterproof and floats. Boasting an insane IP67 water and dustproof rating, it can be totally submerged in water for up to 30-minutes. The all-new Magic Button on BOOM 3 allows you to play, pause and skip tracks directly on the speaker. Just push for convenient control of any streaming music. Use PartyUp on the Ultimate Ears app to pair 2, 3, 4...and over 150 speakers for the ultimate sound experience. You can pair any generation of BOOM and MEGABOOM together. BOOM 3 is virtually indestructible. It’s passed more than 25 seriously tough durability tests, including thousands of button pushes, 100s of tumbles, multiple drop tests, and more. |
Keeps up with you all day. Incredible sound in any position. Easy to Connect; lightweight but powerful sound. Rigorously tested to meet an IP67 rating, SoundLink Flex is waterproof and dustproof, inside and out. Its innovative transducer ensures the clearest possible sound, meaning you hear distinct instruments, nuances in the vocals, and balanced treble and bass. |
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Frequently Asked Questions
Which speaker is better for outdoor use?
The Ultimate Ears Boom 3 is a strong choice for outdoor use because it offers 360-degree sound, up to 15 hours of claimed battery life, and IP67 water and dust resistance. The Bose SoundLink Flex also has IP67 protection and is suitable for outdoor listening.
Which speaker has better battery life?
The Ultimate Ears Boom 3 offers up to 15 hours of battery life, compared with up to 12 hours for the Bose SoundLink Flex, according to the provided specifications.
Is the Ultimate Ears Boom 3 waterproof?
Yes. The Ultimate Ears Boom 3 has an IP67 rating and can be submerged in water up to 1 meter deep for up to 30 minutes under specified test conditions. It is also dust-resistant.
Which speaker offers better sound quality?
The Bose SoundLink Flex emphasizes clear vocals, distinct instruments, and balanced bass and treble. The Ultimate Ears Boom 3 offers 360-degree sound with deep bass. The better choice depends on listening preferences, as the provided specifications do not establish an objective overall sound-quality winner.
Which speaker has a longer Bluetooth range?
The Ultimate Ears Boom 3 lists a Bluetooth range of up to 45 meters, while the Bose SoundLink Flex lists 9 meters. Actual range can vary with obstacles and wireless interference.
Which speaker is better for charging convenience?
The Bose SoundLink Flex includes a USB-C-to-USB-A charging cable, while the Ultimate Ears Boom 3 uses Micro USB. The Bose may be more convenient for users who prefer USB-C accessories.
Top Differences
- Bluetooth Version: 5.0 vs 4.2
- Frequency Response: 90 Hz - 20000 Hz vs NA
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