Short answer: the Ultimate Ears Wonderboom 3, though neither ranks well in its class. It ranks #110 of 175 medium speakers by sound quality (rated 2.9/5) at $79.99 and is still sold new; the Harman Kardon Esquire 2 ranks #155 (rated 2.3/5) and is discontinued, so it is only an option used. Both are rated below 3.0/5 among the 175 medium speakers, so if sound quality matters, consider the EarFun Uboom L instead, ranked #2 at $49.79.
The Ultimate Ears Wonderboom 3 is the better-sounding, longer-running pick. IP67 rated, floats, and is rated to survive a 5 ft drop onto hard surfaces. It is rated for 14 hours of battery against 8 for the Harman Kardon Esquire 2. It is rated IP67 against IPX4 for the Harman Kardon Esquire 2. Watch for: Not stereo, barely any bass.
Why pick the Harman Kardon Esquire 2: Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. It keeps a wired aux input, which the Ultimate Ears Wonderboom 3 lacks. The tradeoff: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume.
Buy the Ultimate Ears Wonderboom 3. It is rated higher for sound quality, and the Harman Kardon Esquire 2 is discontinued, so it is only available used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Wonderboom 3 | Harman Kardon Esquire 2 | |
|---|---|---|
| Price | $79.99 | $200 Discontinued |
| Ranked | #110 of 175 in Medium Size Portable Bluetooth Speakers | #155 of 175 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 76Hz | - |
| Battery Life | 14 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth Latency | 166ms | - |
| Maximum SPL | 87dB (measured by Alan Ross Reviews) | - |
| Power Input | Micro USB | Micro USB |
| Stereo | No | No |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 0.8 lbs (0.35 kg) |
| IP Rating | IP67 | IPX4 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 4.1 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 7.5” x 5.1” x 1.3” (190 x 130 x 34 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 4x 1.25” (32mm) full-range drivers |
| TWS | Yes | No |
| Party Mode | No | - |
| App | No | No |
| EQ | No | No |
| Built-in Microphone | No | Yes |
| Power Bank | No | Yes (USB-A) |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| Amplifier Power | - | 16W |
Related Speaker Comparisons
How Ultimate Ears Wonderboom 3 compares with other leading options:
- Soundcore Motion 300 vs Ultimate Ears Wonderboom 3
- Soundcore Motion+ vs Ultimate Ears Wonderboom 3
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Wonderboom 3
- JBL Charge 6 vs Ultimate Ears Wonderboom 3
- JBL Flip 6 vs Ultimate Ears Wonderboom 3
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
Ultimate Ears Wonderboom 3: $79.99 Amazon $79.99 eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5, released Jun 2024.
Older models: 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.
Pros: IP67 rated, floats, and is rated to survive a 5 ft drop onto hard surfaces. 14 hour battery: longer than the Ultimate Ears Wonderboom 2. Measured bass extension of 76Hz (-10dB).
Cons: Not stereo, barely any bass. Boosted 93Hz upper bass. Cuts bass heavily at high volume. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2022. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 3 review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 76Hz |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 166ms |
| 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 (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: The biggest upgrade since time began! 💪 More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: JBL Flip 6 vs Ultimate Ears Wonderboom 3 (Indoor Mode)⚔️ Battle of the Handheld Bluetooth Speakers. More from JaysStraightUpReviews →
- Danny Pops: Best Outdoor Bluetooth Speaker? Wonderboom 3 VS Sony XB-13 More from DannyPops →
- YouTube Review
- YouTube: Ultimate Ears Wonderboom 3 vs Anker Soundcore Mini 2 Sound Comparison
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Wonderboom
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom 3 vs LG Xboom Grab
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Boom 4
- Ultimate Ears Wonderboom 3 vs Ultimate Ears Boom 3
- Ultimate Ears Wonderboom 3 vs Soundcore 2
- See all 76 comparisons
Harman Kardon Esquire 2: $200 Discontinued eBay
Pros: Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. Flat, compact design packs easily. USB charge-out for topping off a phone.
Cons: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume. Discontinued.
Full Harman Kardon Esquire 2 review and specifications →
| Released | 2015 (11 years ago) |
|---|---|
| Amplifier Power | 16W |
| App | No |
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.5” x 5.1” x 1.3” (190 x 130 x 34 mm) |
| Drivers | 4x 1.25” (32mm) full-range drivers |
| EQ | No |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Power Bank | Yes (USB-A) |
| Power Input | Micro USB |
| Stereo | No |
| TWS | No |
| Weight | 0.8 lbs (0.35 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Esquire 2 vs Ultimate Ears Roll 2
- Harman Kardon Esquire 2 vs Tribit Stormbox Mini
- Harman Kardon Esquire 2 vs LG Xboom XG5
- Harman Kardon Esquire 2 vs LG Xboom Go PL5
- Harman Kardon Esquire 2 vs Sony SRS-XE200
- Harman Kardon Esquire 2 vs Tribit Stormbox Mini+
- Harman Kardon Esquire 2 vs Ultimate Ears Megaboom 4
- Harman Kardon Esquire 2 vs Zealot S61
- See all 72 comparisons