Short answer: the Soundcore Boom 3i. It ranks #29 of 150 medium speakers by sound quality (rated 4.0/5); the Boat Stone 350/352/358 ranks #130 (rated 2.3/5).
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. The tradeoff: 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 Boat Stone 350/352/358 does well: Long battery life (12 hours), IPX5 water resistant, compact and portable, sturdy build, dual passive radiators. The tradeoff: Some midrange peaks, treble slightly rolled off.
Buy the Soundcore Boom 3i. It is rated higher for sound quality than the Boat Stone 350/352/358.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boom 3i | Boat Stone 350/352/358 | |
|---|---|---|
| Price | $118.99 | $15 |
| Ranked | #29 of 150 in Medium Size Portable Bluetooth Speakers | #130 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 56Hz | 87Hz |
| Battery Life | 16 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| EQ | Yes | Yes (multiple modes) |
| IP Rating | IP68 | IPX7 |
| Party Mode | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) | 3.5” x 7.1” (90 x 180 mm) |
| Drivers | 94mm woofer + tweeter | 2x 20mm tweeters + 2x 45mm drivers |
| Weight | 1.7 lbs (783 g) | 0.9 lbs (426 g) |
| Amplifier Power | 50W | 10W |
| Bluetooth Codecs | SBC, AAC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | Yes |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | - |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
How Soundcore Boom 3i compares with other leading options:
- 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 30, 2026 at 2:57 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 | Yes |
| 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
- Soundcore Boom 3i vs JBL Charge 5 Wifi
- Soundcore Boom 3i vs Cleer Audio Scene
- 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
- See all 139 comparisons
Boat Stone 350/352/358: $15 Amazon eBay
Pros: Long battery life (12 hours), IPX5 water resistant, compact and portable, sturdy build, dual passive radiators. Measured bass extension of 87Hz (-10dB).
Cons: Some midrange peaks, treble slightly rolled off. Not much bass. Same hardware as the Dayton Audio Boost
Full Boat Stone 350/352/358 review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 87Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.5” x 7.1” (90 x 180 mm) |
| Drivers | 2x 20mm tweeters + 2x 45mm drivers |
| EQ | Yes (multiple modes) |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.9 lbs (426 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Boat Stone 350/352/358 vs Doss Soundbox Pro
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- Boat Stone 350/352/358 vs Ultimate Ears Boom 4
- Boat Stone 350/352/358 vs Ultimate Ears Wonderboom 4
- Boat Stone 350/352/358 vs Soundcore 2
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- Boat Stone 350/352/358 vs JBL Grip
- See all 28 comparisons