Short answer: both are discontinued, so this only matters if you are buying used, though neither ranks well in its class. Used, the Ultimate Ears Wonderboom is the better pick: it ranks #109 of 164 medium speakers by sound quality (rated 2.9/5), against #121 (rated 2.7/5) for the Bose SoundLink Color II. Both are rated below 3.0/5 among the 164 medium speakers; for better sound, the Earfun Uboom L ranks #2 at $49.79.
Buy the Ultimate Ears Wonderboom only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Earfun Uboom L instead.
There is a real gap in water resistance: the Ultimate Ears Wonderboom at IPX7 (brief submersion) against the Bose SoundLink Color II, which has IPX4 (splashing).
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bose SoundLink Color II | Ultimate Ears Wonderboom | |
|---|---|---|
| Price | $139.00 Discontinued | $79 Discontinued |
| Ranked | #121 of 164 in Medium Size Portable Bluetooth Speakers | #109 of 164 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 8 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Party Mode | Yes (Bose Party mode) | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (600 g) | 0.9 lbs (425 g) |
| IP Rating | IPX4 | IPX7 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | - |
| Dimensions | 5.2” x 5” x 2.2” (132 x 127 x 56 mm) | 4” x 3.7” (102 x 93.5 mm) |
| Drivers | 2x 40mm full-range drivers | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| App | Yes (Bose Connect) | No |
| EQ | No | No |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Power Input | Micro USB | Micro USB |
| Power Bank | No | - |
| Aux Input | No | No |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC, AAC | SBC (inferred; additional codecs unverified) |
| Strap | - | Yes (built-in loop) |
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Prices on this page were last checked October 4, 2026 at 9:58 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 Color II: $139.00 Discontinued Amazon eBay
Pros: Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes. IPX4 splashproof. Supports multipoint pairing to two devices at once.
Cons: Boosted bass on Color II. Not as deep of bass as other models. Lacking midrange detail. Rolled off treble. Discontinued.
Full Bose SoundLink Color II review and specifications →
| App | Yes (Bose Connect) |
|---|---|
| Aux Input | No |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5.2” x 5” x 2.2” (132 x 127 x 56 mm) |
| Drivers | 2x 40mm full-range drivers |
| EQ | No |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs (600 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Bose SoundLink Color II vs Marshall Emberton III
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- Bose SoundLink Color II vs Cabasse Swell
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Ultimate Ears Wonderboom: $79 Discontinued eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated and floats. Compact, light, and simple to use.
Cons: Not stereo, barely any bass, recessed treble. Dip at 9kHz. Low mid bass distortion. Not technically a 360 speaker, only front and rear. Discontinued.
Full Ultimate Ears Wonderboom review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4” x 3.7” (102 x 93.5 mm) |
| Drivers | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (425 g) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
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