These are not really the same size class, and that is the honest framing here. The Soundcore Boom 3i ranks #29 of 144 medium speakers by sound quality at $118.99; the JBL Go 4 ranks #25 of 47 small speakers by sound quality at $49.95.
Why pick the Soundcore Boom 3i: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. 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.
What the JBL Go 4 does well: A little more bass than the Go 3 and they fixed the strange mids peak. Watch for: Not much bass at all, especially with electronic/bass-heavy tracks pushed past ~50% volume.
Buy the Soundcore Boom 3i ($118.99) for a medium speaker; the JBL Go 4 ($49.95) suits a small speaker instead.
If battery life is a priority, the Soundcore Boom 3i is rated for 16 hours versus 7 hours for the JBL Go 4.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Boom 3i | JBL Go 4 | |
|---|---|---|
| Price | $118.99 | $49.95 |
| Ranked | #29 of 144 in Medium Size Portable Bluetooth Speakers | #25 of 47 in Small Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 56Hz | ~82Hz |
| Battery Life | 16 hours (Manufacturer specified) | 7 hours (Manufacturer specified) |
| EQ | Yes | Yes |
| IP Rating | IP68 | IP67 |
| Party Mode | No | Yes (Auracast) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) | 3.7” x 3” x 1.7” (94.3 x 75.7 x 42.2 mm) |
| Drivers | 94mm woofer + tweeter | 45mm |
| Weight | 1.7 lbs (783 g) | 0.4 lbs (190 g) |
| Amplifier Power | 50W | 4.2W |
| Bluetooth Codecs | SBC, AAC | SBC |
| Built-in Microphone | Yes | Yes |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (built-in loop) |
| Power Bank | - | No |
| Frequency Response | - | 90Hz - 20kHz (Manufacturer specified) |
| Charging Time | - | 3 hours |
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Prices on this page were last checked September 26, 2026 at 11:14 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: $118.99 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. Measured bass extension of 56Hz (-10dB).
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 →
| Amplifier Power | 50W |
|---|---|
| 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 |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| 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
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JBL Go 4: $49.95 Amazon B&H Photo Video eBay
Newer model: the JBL Go 5, rated 3.2/5.
Pros: A little more bass than the Go 3 and they fixed the strange mids peak. Measured bass extension of ~82Hz (-10dB).
Cons: Not much bass at all, especially with electronic/bass-heavy tracks pushed past ~50% volume. Midrange can sound grainy and treble a bit sizzly; loses clarity at higher volumes.
Full JBL Go 4 review and specifications →
| Amplifier Power | 4.2W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | ~82Hz |
| Battery Life | 7 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 3.7” x 3” x 1.7” (94.3 x 75.7 x 42.2 mm) |
| Drivers | 45mm |
| EQ | Yes |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Auracast) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.4 lbs (190 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Stereo Specs: JBL GO 4 vs JBL GO 3 : Is there more bass or not?Unboxing,Features,Specs,Sound Test & Comparison !
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