Short answer: the Soundcore Select 4 Go for cheap IP67 protection, the Soundcore Boom 3i for bass and loudness. The Boom 3i at $118.99 matches a Charge 5’s warm, bass-boosted sound with IP68 protection, 50W and 56Hz -10dB extension, but is not quite as loud or balanced and early firmware had bass distortion. The Select 4 Go at $22.99 weighs 0.6 lbs (265 g), is IP67 rated and claims 20 hours, but bass is not deep and it is mono without a second unit.
Buy the Soundcore Select 4 Go at $22.99 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.
A very inexpensive waterproof mini speaker with a strap, a long battery, app EQ, and stereo pairing.
A warm, punchy waterproof speaker that sounds great and is a strong value.
Prices on this page were last checked November 2, 2026 at 11:36 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.
Specifications Side By Side
| Soundcore Select 4 Go | Soundcore Boom 3i | |
|---|---|---|
| Price | $22.99 | $118.99 |
| Ranked | #25 of 62 in Small Size Portable Bluetooth Speakers | #31 of 177 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 | Yes | Yes |
| 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 |
| Strap | Yes (strap) | Yes (detachable strap) |
| Bass Extension (-10dB) | - | 56Hz |
| Lights | - | Yes |
Related Speaker Comparisons
More top alternatives to Soundcore Boom 3i: