These sit in different size classes, so this is not a straight ranking comparison. The Soundcore Select 4 Go ranks #23 of 47 small speakers by sound quality at $21.99; the Soundcore Boom 3i ranks #29 of 142 medium speakers by sound quality at $118.99.
What the Select 4 Go gets right: it is inexpensive for what you get, weighs 265 g, is IP67 rated and claims 20 hours of battery. The catch: bass is not deep, it does not get very loud before quality drops, there is some sibilance on snare transients, and playback is mono unless you buy a second unit.
The case for the Boom 3i: a direct competitor to the Charge 5 with a similar warm, bass boosted sound, IP68 protection, 50W of amplification and 56Hz of measured -10dB extension. Watch for: it is not quite as loud or balanced as a Charge 5, and earlier firmware had some bass distortion, so update it in the Soundcore app.
Buy the Soundcore Select 4 Go at $21.99 for a small speaker, or the Soundcore Boom 3i at $118.99 for a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Select 4 Go | Soundcore Boom 3i | |
|---|---|---|
| Price | $21.99 | $118.99 |
| Ranked | #23 of 47 in Small Size Portable Bluetooth Speakers | #29 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| EQ | Yes | Yes |
| IP Rating | IP67 | IP68 |
| Power Bank | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.6 lbs (265 g) | 1.7 lbs (783 g) |
| Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| Built-in Microphone | Yes | Yes |
| Party Mode | No | No |
| Bluetooth Version | 5.4 | 5.3 |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) | - |
| Dimensions | 4.8" x 3.3" x 1.9" (121 x 83 x 48.5 mm) | 8.3" x 3.3" x 3.1" (210 x 85 x 78.5 mm) |
| Charging Time | 4 hours | - |
| Drivers | 1.75" (44mm) full range | 94mm woofer + tweeter |
| Amplifier Power | 5W | 50W |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 56Hz |
| Lights | - | Yes |
Related Speaker Comparisons
More top alternatives to Soundcore Boom 3i:
- Soundcore Boom 3i vs Earfun Uboom L
- Soundcore Motion 300 vs Soundcore Boom 3i
- Soundcore Motion+ vs Soundcore Boom 3i
- Soundcore Boost “upgraded” 2021 vs Soundcore Boom 3i
- Soundcore Boom 3i vs Minirig 4
Prices on this page were last checked September 19, 2026 at 7:15 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Soundcore Select 4 Go: $21.99 Amazon Aliexpress B&H Photo Video eBay
Pros: Quite inexpensive for what you get
Cons: Not as deep of bass as higher ranked speakers. Doesn’t get very loud before sound quality drops; some sibilance on snare/stick transients. No built-in mic; playback is mono unless you buy a second unit.
Full Soundcore Select 4 Go review and specifications →
| Amplifier Power | 5W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Charging Time | 4 hours |
| Digital Aux Input | No |
| Dimensions | 4.8" x 3.3" x 1.9" (121 x 83 x 48.5 mm) |
| Drivers | 1.75" (44mm) full range |
| EQ | Yes |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 0.6 lbs (265 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Select 4 Go vs JBL Go 5
- Soundcore Select 4 Go vs JBL Clip 4
- Soundcore Select 4 Go vs JBL Clip 5
- Soundcore Select 4 Go vs JBL Go 4
- Soundcore Select 4 Go vs JBL Go 3
- Soundcore Select 4 Go vs Tribit PocketGo
- Soundcore Select 4 Go vs Bose Soundlink Micro
- Soundcore Select 4 Go vs Bose Soundlink Micro 2
- See all 33 comparisons
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 |
| 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 Bogasing G4
- 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 Harman Kardon Luna 2
- See all 92 comparisons