Short answer: the Soundcore Flare 2. It ranks #105 of 136 medium speakers by sound quality at $80; the Ultimate Ears Megaboom 4 ranks #132 and costs $200, which makes this an easy call rather than a real tradeoff.
What the Soundcore Flare 2 offers: Try Alan Ross’s EQ for it Watch for: Rolled off treble. Thuddy bass. Not technically a 360 speaker, only front and rear.
What the Ultimate Ears Megaboom 4 offers: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together. Watch for: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Buy the Soundcore Flare 2. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, which settles it without a real tradeoff to make.
If sound quality matters at all to you, skip both of these and look higher up the 136 medium speakers instead.
There is a real battery-life gap here: the Ultimate Ears Megaboom 4 is rated for 20 hours, the Soundcore Flare 2 only 12 hours.
Specifications Side By Side
| Soundcore Flare 2 | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $80 | $200 |
| Ranked | #105 of 136 in Medium Size Portable Bluetooth Speakers | #132 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| EQ | Yes | Yes (via app) |
| Bluetooth Latency | 80ms | - |
| Max Volume | 99dB | 91dB |
| Party Mode | Yes (PartyCast up to 100 speakers) | Yes (PartyUp up to 50 speakers) |
| Weight | 1.3 lbs / 600 g | 2.4 lbs / 1.1 kg |
| IP Rating | IPX7 | IP67 |
| Bluetooth Version | 5.0 | 5.1 |
| Bluetooth Codecs | SBC | - |
| Drivers | 2x full-range drivers + 2x passive radiators | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| TWS | Yes | Yes |
| Built in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | Pointing up | Yes |
| Power Input | USB-C | USB-C |
| Output Power | 20W | - |
| Digital Aux Input | No | No |
| Dimensions | - | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) |
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Prices on this page were last checked August 27, 2026 at 10:09 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 Flare 2: $80 Amazon eBay
Pros: Try Alan Ross’s EQ for it
Cons: Rolled off treble. Thuddy bass. Not technically a 360 speaker, only front and rear.
Full Soundcore Flare 2 review and specifications →
| App | Yes |
|---|---|
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 80ms |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Drivers | 2x full-range drivers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IPX7 |
| Max Volume | 99dB |
| Omnidirectional | Pointing up |
| Output Power | 20W |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 600 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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Ultimate Ears Megaboom 4: $200 Amazon eBay
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| App | Yes |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Version | 5.1 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Max Volume | 91dB |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.4 lbs / 1.1 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs Sony ULT Field 1 😧 $200 vs $128 Cylinder Bluetooth Speaker Matchup More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧
- Reddit Search for Ultimate Ears Megaboom 4 Review
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