Short answer: both are discontinued, so this only matters if you are buying used. Used, the Soundcore Boost “upgraded” 2021 is the better pick: it ranks #5 of 175 medium speakers by sound quality (rated 4.4/5), against #112 (rated 2.9/5) for the Ultimate Ears Wonderboom. If you want one new, the Ultimate Ears Wonderboom 4 replaces the Ultimate Ears Wonderboom and is rated 2.9/5 at $74.50.
The Soundcore Boost “upgraded” 2021 is the better-sounding choice. A very neutral good sounding inexpensive small speaker with quite deep bass for the size. It has an adjustable EQ, which the Ultimate Ears Wonderboom lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Wonderboom. It charges over USB-C rather than Micro USB. The tradeoff: Slight DSP tuning issue which makes bass get lighter at times at very low volumes, examples in oluv’s video.
The Ultimate Ears Wonderboom is the lighter choice. IP67 rated and floats. At 0.9 lbs (425 g) it weighs noticeably less than the Soundcore Boost “upgraded” 2021 at 1.3 lbs (590 g). The catch: Not stereo, barely any bass, recessed treble.
Buy the Soundcore Boost “upgraded” 2021 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, buy the Ultimate Ears Wonderboom 4, which replaces the Ultimate Ears Wonderboom.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Boost “upgraded” 2021 | Ultimate Ears Wonderboom | |
|---|---|---|
| Price | $60 Discontinued | $79 Discontinued |
| Ranked | #5 of 175 in Medium Size Portable Bluetooth Speakers | #112 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | No |
| EQ | Yes (9 band) | No |
| IP Rating | IPX7 | IPX7 |
| Bluetooth Latency | 150ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-A, 5V/1A) | - |
| Power Input | USB-C | Micro USB |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (590 g) | 0.9 lbs (425 g) |
| Bluetooth Version | 5.0 | - |
| Dimensions | 8” x 2.8” x 2.7” (204 x 72 x 69 mm) | 4” x 3.7” (102 x 93.5 mm) |
| Drivers | 1.75” (44mm) x 2 active drivers and one passive radiator | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| Amplifier Power | 20W (10W × 2) | - |
| Digital Aux Input | No | No |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
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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
Soundcore Boost “upgraded” 2021: $60 Discontinued eBay
Older model: the Soundcore Boost “original model” pre-2021 (ranked lower, rated 4.2/5). See every Soundcore Boost generation.
Pros: A very neutral good sounding inexpensive small speaker with quite deep bass for the size. This upgraded version has a usb-c port while the old one has micro usb. Measured bass extension of 56Hz (-10dB).
Cons: Slight DSP tuning issue which makes bass get lighter at times at very low volumes, examples in oluv’s video. Discontinued and no longer sold new.
Full Soundcore Boost “upgraded” 2021 review and specifications →
| Released | Jul 2021 (5 years ago) |
|---|---|
| Amplifier Power | 20W (10W × 2) |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 150ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8” x 2.8” x 2.7” (204 x 72 x 69 mm) |
| Drivers | 1.75” (44mm) x 2 active drivers and one passive radiator |
| EQ | Yes (9 band) |
| IP Rating | IPX7 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/1A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs (590 g) |
- Links
- Reviews, Comparisons and Sound Samples
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- Alan Ross Reviews: Sonos Roam Review and specs - vs maxsound plus, soundcore boost and others! 👍
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
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- Alan Ross Reviews: Bogasing G4 spot cheap speaker - I was NOT expecting this!
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- Alan Ross Reviews: Earfun UBoom L Review Speaker tuned by a Geek vs Soundcore Motion Plus $100 dollar best portable?
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- Speakertech: Anker soundcore Boost (Upgraded) vs minirig mini in stereo /2.0 (and changing the equalizer)
- Head-to-Head Comparisons
- Soundcore Boost “upgraded” 2021 vs Denon Envaya DSB-250BT
- Soundcore Boost “upgraded” 2021 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs Minirig 4
- Soundcore Boost “upgraded” 2021 vs Soundcore Motion 300
- Soundcore Boost “upgraded” 2021 vs B&O Beosound A1
- Soundcore Boost “upgraded” 2021 vs B&O Beosound A1 2nd gen
- Soundcore Boost “upgraded” 2021 vs JBL Charge 6
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- See all 77 comparisons
Ultimate Ears Wonderboom: $79 Discontinued eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5, released Jun 2024. See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
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 →
| Released | Nov 2017 (8 years ago) |
|---|---|
| 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
- Head-to-Head Comparisons
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