Short answer: the Bose Soundlink Mini 2 if sound quality matters most, the Ultimate Ears Wonderboom 4 if price matters most. The Bose Soundlink Mini 2 ranks #55 of 136 medium speakers at $184. The Ultimate Ears Wonderboom 4 ranks #84 at $59.99, $124.01 cheaper.
What the Bose Soundlink Mini 2 offers: Compact aluminum build feels sturdy and dense. ~10 hour battery life; can pair to two devices at once and remembers up to 8. Watch for: Boosted upper bass like most Bose speakers. Upper treble rolled off. Bass is 2db less boosted than the Mini. Bass doesn’t go as deep as others. Failures of the mainboard are common.
What the Ultimate Ears Wonderboom 4 offers: Small size. Watch for: 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.
Buy the Bose Soundlink Mini 2 if sound quality is the priority over the price, or the Ultimate Ears Wonderboom 4 if the price is the priority over sound quality.
Water resistance is not close: the Ultimate Ears Wonderboom 4 is rated at IP67 (brief submersion), well ahead of the Bose Soundlink Mini 2 at no water resistance.
Specifications Side By Side
| Bose Soundlink Mini 2 | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $184.00 Discontinued | $59.99 |
| Ranked | #55 of 136 in Medium Size Portable Bluetooth Speakers | #84 of 136 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 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 | - |
| Built in Microphone | Yes | No |
| Power Input | Proprietary connector | USB-C |
| App | Yes (Bose Connect) | No |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Bluetooth Latency | - | - |
| Max Volume | - | 87dB |
| TWS | - | Yes |
| Party Mode | - | No |
| EQ | - | No |
| Power Bank | - | No |
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Prices on this page were last checked August 27, 2026 at 10:09 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 eBay
Pros: Compact aluminum build feels sturdy and dense. ~10 hour battery life; can pair to two devices at once and remembers up to 8.
Cons: Boosted upper bass like most Bose speakers. Upper treble rolled off. Bass is 2db less boosted than the Mini. Bass doesn’t go as deep as others. Failures of the mainboard are common. Discontinued.
Full Bose Soundlink Mini 2 review and specifications →
| App | Yes (Bose Connect) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~58Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| Drivers | 2x 33mm fullrange |
| IP Rating | None |
| Omnidirectional | No |
| Power Input | Proprietary connector |
| Stereo | Yes |
| Weight | 1.5 lbs / 680 g |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross: Hall of Fame classic vs latest Bose tech! More from alanrossreviews →
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- techkiste.net: Bose Soundlink Mini 2 vs the world ;) (Denon Envaya DSB250, Vifa Reykjavik, iRoar Go)
- Reddit Search for Bose Soundlink Mini 2 Review
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Ultimate Ears Wonderboom 4: $59.99 Amazon eBay
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 →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Latency | |
| 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 |
| Max Volume | 87dB |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| 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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