Short answer: the Ultimate Ears Megaboom 4, if you are buying new. The Bose Soundlink Mini 2 ranks higher than it (#72 vs #170 of 175 medium speakers, 3.4/5 vs 2.1/5) but is discontinued, so only consider it used; the Ultimate Ears Megaboom 4 is still sold new at $200.
The Bose Soundlink Mini 2 is the better-sounding, lighter option. Compact aluminum build feels sturdy and dense. ~10 hour battery life; can pair to two devices at once and remembers up to 8. At 1.5 lbs (680 g) it weighs much less than the Ultimate Ears Megaboom 4 at 2.4 lbs (1.1 kg). It keeps a wired aux input, which the Ultimate Ears Megaboom 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Megaboom 4. Watch for: Boosted upper bass like most Bose speakers.
The Ultimate Ears Megaboom 4 is the longer-running, tougher choice. IP67 rated, floats, and finally uses USB-C charging. It is rated for 20 hours of battery against 10 for the Bose Soundlink Mini 2. It is rated IP67, while the Bose Soundlink Mini 2 has no water resistance. It has an adjustable EQ, which the Bose Soundlink Mini 2 lacks. The tradeoff: A lot of distortion at higher volumes.
Buy the Ultimate Ears Megaboom 4 new; the Bose Soundlink Mini 2 is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Mini 2 | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $184.00 Discontinued | $200 |
| Ranked | #72 of 175 in Medium Size Portable Bluetooth Speakers | #170 of 175 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | ~58Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | None | IP67 |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Weight | 1.5 lbs (680 g) | 2.4 lbs (1.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.1 |
| Drivers | 2x 33mm fullrange | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| Dimensions | 7.1” x 2” x 2.3” (180 x 51 x 58 mm) | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| Power Input | Micro-USB or charging cradle | USB-C |
| App | Yes (Bose Connect) | Yes |
| Digital Aux Input | No | No |
| TWS | Yes | Yes |
| EQ | No | Yes (via app) |
| Strap | No | Yes (built-in loop) |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Maximum SPL | - | 91dB (Manufacturer specified) |
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Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Bose Soundlink Mini 2: $184.00 Discontinued Amazon $184.00 eBay
Older model: the Bose Soundlink Mini (ranked lower, rated 3.4/5). See every Bose SoundLink Mini generation.
Pros: Compact aluminum build feels sturdy and dense. ~10 hour battery life; can pair to two devices at once and remembers up to 8. Measured bass extension of ~58Hz (-10dB).
Cons: Boosted upper bass like most Bose speakers. Upper treble rolled off. Bass is 2db less boosted than the Bose Soundlink Mini. Bass doesn’t go as deep as others. Failures of the mainboard are common. Discontinued.
Full Bose Soundlink Mini 2 review and specifications →
| Released | Jul 2015 (11 years ago) |
|---|---|
| App | Yes (Bose Connect) |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~58Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.1” x 2” x 2.3” (180 x 51 x 58 mm) |
| Drivers | 2x 33mm fullrange |
| EQ | No |
| IP Rating | None |
| Omnidirectional | No |
| Power Input | Micro-USB or charging cradle |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 1.5 lbs (680 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Megaboom 4: $200 Amazon $200 eBay
Older model: the Ultimate Ears Megaboom 3 (ranked higher, rated 3/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Boom 4 (smaller model, ranked higher, rated 2.9/5).
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs Sony ULT Field 1 😧 $200 vs $128 Cylinder Bluetooth Speaker Matchup More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧
- Smart Home Sounds: UE Everboom Review PLUS All-New Wonderboom 4, Boom 4 & Megaboom 4 More from Smart Home Sounds →
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