Short answer: the Ultimate Ears Wonderboom 4, if you are buying new. The Soundcore Boost “upgraded” 2021 ranks higher than it (#5 vs #109 of 175 medium speakers, 4.4/5 vs 2.9/5) but is discontinued, so only consider it used; the Ultimate Ears Wonderboom 4 is still sold new 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 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Wonderboom 4. 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 4 is the lighter option. At 0.9 lbs (420 g) it weighs noticeably less than the Soundcore Boost “upgraded” 2021 at 1.3 lbs (590 g). The catch: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
Buy the Ultimate Ears Wonderboom 4 if you want one new; the Soundcore Boost “upgraded” 2021 is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boost “upgraded” 2021 | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $60 Discontinued | $74.50 |
| Ranked | #5 of 175 in Medium Size Portable Bluetooth Speakers | #109 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) | 14 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | Yes (9 band) | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 150ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | 87dB (Manufacturer specified) |
| Party Mode | No | No |
| Power Bank | Yes (USB-A, 5V/1A) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (590 g) | 0.9 lbs (420 g) |
| Bluetooth Version | 5.0 | 5.2 |
| Dimensions | 8” x 2.8” x 2.7” (204 x 72 x 69 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 1.75” (44mm) x 2 active drivers and one passive radiator | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| Amplifier Power | 20W (10W × 2) | - |
| Digital Aux Input | No | No |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
How Soundcore Boost “upgraded” 2021 compares with other leading options:
- Soundcore Boost “upgraded” 2021 vs Soundcore Motion 300
- Soundcore Boost “upgraded” 2021 vs Soundcore Motion+
- Denon Envaya DSB-250BT vs Soundcore Boost “upgraded” 2021
- Minirig 4 vs Soundcore Boost “upgraded” 2021
- Soundcore Boost “upgraded” 2021 vs B&O Beosound A1
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: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Alan Ross Reviews: 2x Soundcore Boost (stereo) vs Motion Boom and Motion+ - Best Soundcore speaker? 😋
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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
- Soundcore Boost “upgraded” 2021 vs JBL Flip 6
- See all 77 comparisons
Ultimate Ears Wonderboom 4: $74.50 Amazon $74.50 eBay
Older models: the Ultimate Ears Wonderboom 3 (ranked lower, rated 2.9/5), 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.
Same family: the Ultimate Ears Boom 4 (larger model, ranked lower, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| 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 (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Wonderboom 4 vs LG Xboom Grab
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom
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- Ultimate Ears Wonderboom 4 vs Tribit Stormbox 2
- See all 138 comparisons