Short answer: the Ultimate Ears Boom 4. It ranks #88 of 136 medium speakers by sound quality at $105; the Bose SoundLink Color II ranks #98 and costs $139, so there is not much of a tradeoff to weigh.
What the Bose SoundLink Color II offers: Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes. Set against that: Boosted bass on Color II.
The case for the Ultimate Ears Boom 4: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. The catch: Not much improvement over the old ones.
One note: the Bose SoundLink Color II is discontinued, but it still ranks #98 of 136 medium speakers by sound quality, ahead of most of what is still sold new, so it is worth considering used.
Buy the Ultimate Ears Boom 4. It ranks higher for sound quality than the Bose SoundLink Color II and costs less, so there is no real case for the other one.
If battery life is a priority, the Ultimate Ears Boom 4 is rated for 15 hours versus 8 hours for the Bose SoundLink Color II.
If water resistance matters to you, the Ultimate Ears Boom 4 at IP67 (brief submersion) holds up far better than the Bose SoundLink Color II at IPX4 (splashing).
Specifications Side By Side
| Bose SoundLink Color II | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $139.00 Discontinued | $105 |
| Ranked | #98 of 136 in Medium Size Portable Bluetooth Speakers | #88 of 136 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 8 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Party Mode | Yes (Bose Party mode) | - |
| TWS | Yes | Yes |
| Weight | 1.3 lbs / 600 g | 1.4 lbs / 620 g |
| IP Rating | IPX4 | IP67 |
| Bluetooth Version | 4.2 | 5.1 |
| Dimensions | 5.2" x 5" x 2.2" (132 x 127 x 56 mm) | 7.2" x 2.9" x 2.9" (184 x 73 x 73 mm) |
| Drivers | 2x 40mm full-range drivers | 2x 1.57" (40mm) active drivers + 2x 1.81" x 2.57" (46.1 x 65.2mm) passive radiators |
| App | Yes (Bose Connect) | Yes |
| EQ | No | Yes (via app) |
| Built in Microphone | Yes | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Power Input | Micro USB | USB-C |
| Power Bank | No | No |
| Aux Input | No | No |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Max Volume | - | 85dBC |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Ultimate Ears Boom 3 vs Sony SRS-XE300
- Ultimate Ears Megaboom 3 vs Ultimate Ears Wonderboom
- Marshall Emberton II vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- Bose SoundLink Color II vs Ultimate Ears Boom 3
The Two Speakers In Full
Bose SoundLink Color II: $139.00 Discontinued Amazon
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 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) |
| Discontinued | Yes |
| 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 |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Bose SoundLink Color II vs Marshall Emberton III
- Bose SoundLink Color II vs Marshall Emberton II
- Bose SoundLink Color II vs Yamaha True X Speaker 1A
- Bose SoundLink Color II vs Cabasse Swell
- Bose SoundLink Color II vs Sony SRS-XB20
- Bose SoundLink Color II vs Tribit Stormbox
- Bose SoundLink Color II vs Teufel Rockster Go
- Bose SoundLink Color II vs Sony SRS-XE300
- See all 22 comparisons
Ultimate Ears Boom 4: $105 Amazon
Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.
Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Full Ultimate Ears Boom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Version | 5.1 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2" x 2.9" x 2.9" (184 x 73 x 73 mm) |
| Drivers | 2x 1.57" (40mm) active drivers + 2x 1.81" x 2.57" (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Max Volume | 85dBC |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs / 620 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Boom 4 vs Ultimate Ears Boom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Klipsch Groove/Heritage Groove
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- Ultimate Ears Boom 4 vs Tribit Stormbox
- See all 23 comparisons