Short answer: the Ultimate Ears Boom 4 if sound quality matters most, the Oontz Angle 3 if price matters most, though neither ranks well in its class. The Ultimate Ears Boom 4 ranks #99 of 150 medium speakers, rated 2.9/5, at $109.99. The Oontz Angle 3 ranks #146, rated 2.1/5, at $28, $81.99 cheaper. Both are rated below 3.0/5 among the 150 medium speakers, so if sound quality matters, consider the Earfun Uboom L instead, ranked #1 at $49.79.
What the Ultimate Ears Boom 4 does well: 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.
What the Oontz Angle 3 does well: At 580 g, Oontz Angle 3 combines 2x precision acoustic drivers + 1x passive bass radiator with Bluetooth and aux. Watch for: Bass is limited by its 138Hz specification.
Buy the Ultimate Ears Boom 4 if sound quality is the priority over the price, or the Oontz Angle 3 if the price is the priority over sound quality.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Boom 4 | Oontz Angle 3 | |
|---|---|---|
| Price | $109.99 | $28 |
| Ranked | #99 of 150 in Medium Size Portable Bluetooth Speakers | #146 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Battery Life | 15 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX5 |
| Power Input | USB-C | Micro USB |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 1.4 lbs (620 g) | 1.3 lbs (580 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.0 |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) | 5.3” x 2.6” x 2.8” (133.4 x 66 x 71.1 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators | 2x precision acoustic drivers + 1x passive bass radiator |
| TWS | Yes | No |
| EQ | Yes (via app) | - |
| Built-in Microphone | No | Yes |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Maximum SPL | 85dBC (Manufacturer specified) | 89dB (Manufacturer specified) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| Strap | Yes (built-in loop) | - |
| Bass Extension (-10dB) | - | 138Hz |
| Amplifier Power | - | 12W |
Related Speaker Comparisons
How Ultimate Ears Boom 4 compares with other leading options:
- Ultimate Ears Boom 4 vs Earfun Uboom L
- Soundcore Motion 300 vs Ultimate Ears Boom 4
- Soundcore Motion+ vs Ultimate Ears Boom 4
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Boom 4
- Ultimate Ears Boom 4 vs Minirig 4
Prices on this page were last checked September 30, 2026 at 2:57 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
Ultimate Ears Boom 4: $109.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5).
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 | Yes |
| Bluetooth Codecs | SBC |
| 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 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- 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 DBSONO X-Blast F37
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- See all 133 comparisons
Oontz Angle 3: $28 Amazon eBay
Pros: At 580 g, Oontz Angle 3 combines 2x precision acoustic drivers + 1x passive bass radiator with Bluetooth and aux. Claimed 14 hours (manufacturer specified) battery life, ipx5 protection, up to 89db and single-box playback make its feature set practical for its intended room or portable use. Measured bass extension of 138Hz (-10dB).
Cons: Bass is limited by its 138Hz specification. There is no companion app. No EQ adjustment.
Full Oontz Angle 3 review and specifications →
| Amplifier Power | 12W |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 138Hz |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5.3” x 2.6” x 2.8” (133.4 x 66 x 71.1 mm) |
| Drivers | 2x precision acoustic drivers + 1x passive bass radiator |
| IP Rating | IPX5 |
| Maximum SPL | 89dB (Manufacturer specified) |
| Omnidirectional | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | No |
| Weight | 1.3 lbs (580 g) |
- Links
- 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
- Oontz Angle 3 vs Ultimate Ears Megaboom 4
- Oontz Angle 3 vs Tribit Stormbox Mini+
- Oontz Angle 3 vs Marshall Emberton II
- Oontz Angle 3 vs Marshall Emberton III
- Oontz Angle 3 vs Ultimate Ears Wonderboom 4
- Oontz Angle 3 vs Soundcore 2
- Oontz Angle 3 vs Tribit Xsound Go
- Oontz Angle 3 vs Sony ULT Field 1
- See all 32 comparisons