Short answer: the Ultimate Ears Wonderboom 4, if you are buying new. The Bose Soundlink Mini 2 ranks higher than it (#72 vs #109 of 175 medium speakers, 3.4/5 vs 2.9/5) but is discontinued, so only consider it used; the Ultimate Ears Wonderboom 4 is still sold new at $74.50.
The Bose Soundlink Mini 2 is the better-sounding pick. Compact aluminum build feels sturdy and dense. ~10 hour battery life; can pair to two devices at once and remembers up to 8. It keeps a wired aux input, which the Ultimate Ears Wonderboom 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Wonderboom 4. Watch for: Boosted upper bass like most Bose speakers.
The Ultimate Ears Wonderboom 4 is the longer-running, lighter choice. It is rated for 14 hours of battery against 10 for the Bose Soundlink Mini 2. At 0.9 lbs (420 g) it weighs much less than the Bose Soundlink Mini 2 at 1.5 lbs (680 g). It is rated IP67, while the Bose Soundlink Mini 2 has no water resistance. Watch for: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
Buy the Ultimate Ears Wonderboom 4, since the Bose Soundlink Mini 2 is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Mini 2 | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $184.00 Discontinued | $74.50 |
| Ranked | #72 of 175 in Medium Size Portable Bluetooth Speakers | #109 of 175 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | ~58Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| IP Rating | None | IP67 |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Weight | 1.5 lbs (680 g) | 0.9 lbs (420 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.2 |
| Drivers | 2x 33mm fullrange | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| Dimensions | 7.1” x 2” x 2.3” (180 x 51 x 58 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| Power Input | Micro-USB or charging cradle | USB-C |
| App | Yes (Bose Connect) | No |
| Digital Aux Input | No | No |
| TWS | Yes | Yes |
| EQ | No | No |
| Strap | No | Yes (built-in loop) |
| Maximum SPL | - | 87dB (Manufacturer specified) |
| Party Mode | - | No |
| Power Bank | - | No |
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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
- Head-to-Head Comparisons
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Ultimate Ears Wonderboom 4: $74.50 Amazon $74.50 eBay
Older models: the Ultimate Ears Wonderboom 3 (ranked lower, rated 2.9/5), the Ultimate Ears Wonderboom 2 (ranked lower, rated 2.9/5) and the Ultimate Ears Wonderboom (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Boom 4 (larger model, ranked lower, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 3
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