Short answer: the Soundcore Boom 3i on measured sound quality, the JBL Flip 4 on price. The Soundcore Boom 3i ranks #27 of 136 medium speakers at $110. The JBL Flip 4 ranks #63 at $70, $40 cheaper.
What the Soundcore Boom 3i offers: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. Better value for the money than the Charge 5. Watch for: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close. An earlier firmware version had some bass distortion, update your firmware in the Soundcore App
What the JBL Flip 4 offers: Less bass than a Flip 5. Peaky lower treble. Watch for: Battery failures are common.
Buy the Soundcore Boom 3i if sound quality is the priority over the price, or the JBL Flip 4 if the price is the priority over sound quality.
Specifications Side By Side
| Soundcore Boom 3i | JBL Flip 4 | |
|---|---|---|
| Price | $110 | $70 Discontinued |
| Ranked | #27 of 136 in Medium Size Portable Bluetooth Speakers | #63 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 56Hz | 66Hz |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes | - |
| IP Rating | IP68 | IPX7 |
| Party Mode | No | Yes (Connect+ up to 100 speakers) |
| Power Input | USB-C | Micro USB |
| Stereo | No | - |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 8.3" x 3.3" x 3.1" (210 x 85 x 78.5 mm) | 6.9" x 2.8" x 2.6" (175 x 70 x 65 mm) |
| Drivers | 94mm woofer + tweeter | 2x 40mm fullrange |
| Weight | 1.7 lbs / 783 g | 1.1 lbs / 510 g |
| Output Power | 50W | 16W RMS |
| Bluetooth Codecs | SBC, AAC | - |
| Built in Microphone | Yes | - |
| Digital Aux Input | No | No |
| Bluetooth Latency | - | 300ms |
| Frequency Response | - | 70Hz - 20kHz (Manufacturer specified) |
| Discontinued | - | Yes |
| Max Volume | - | 92dB |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- Soundcore Glow vs Sony XB23
- Sony XB23 vs JBL Charge 3
- Sony XB23 vs Ultimate Ears Wonderboom 2
- Soundcore Boom 3i vs Tribit Stormbox 2
- Sony XB33 vs JBL Flip 4
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 Boom 3i: $110 Amazon B&H Photo Video eBay
Pros: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. Better value for the money than the Charge 5.
Cons: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close. An earlier firmware version had some bass distortion, update your firmware in the Soundcore App
Full Soundcore Boom 3i review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.3" x 3.3" x 3.1" (210 x 85 x 78.5 mm) |
| Drivers | 94mm woofer + tweeter |
| EQ | Yes |
| IP Rating | IP68 |
| Omnidirectional | No |
| Output Power | 50W |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.7 lbs / 783 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Boom 3i vs JBL Charge 5
- Soundcore Boom 3i vs JBL Charge 5 Wifi
- Soundcore Boom 3i vs Teufel Rockster XS
- Soundcore Boom 3i vs Tribit Xsound Plus 2
- Soundcore Boom 3i vs Harman Kardon Luna
- Soundcore Boom 3i vs Bose Soundlink Flex 2nd gen
- Soundcore Boom 3i vs Tribit Maxsound Plus V1/V2/Thunderbox Plus
- Soundcore Boom 3i vs Tribit Xsound Mega
- See all 77 comparisons
JBL Flip 4: $70 Discontinued Amazon eBay
Pros: Less bass than a Flip 5. Peaky lower treble.
Cons: Battery failures are common. Discontinued.
Full JBL Flip 4 review and specifications →
| Aux Input | Yes |
|---|---|
| Bass Extension (-10dB) | 66Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 300ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 6.9" x 2.8" x 2.6" (175 x 70 x 65 mm) |
| Discontinued | Yes |
| Drivers | 2x 40mm fullrange |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 92dB |
| Omnidirectional | No |
| Output Power | 16W RMS |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Input | Micro USB |
| TWS | No |
| Weight | 1.1 lbs / 510 g |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: JBL Flip 5 vs Flip 4 :Sound Battle: Almost to the size of the JBL Charge 3? More from DLXWillington →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2 More from GYMCADDY →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2
- Reddit Search for JBL Flip 4 Review
- Head-to-Head Comparisons