Short answer: the Tribit Stormbox Flow. It ranks #62 of 175 medium speakers by sound quality (rated 3.5/5) at $79.99 and is still sold new; the Sony SRS-XB30 ranks #133 (rated 2.6/5) and is discontinued, so it is only an option used. The Sony SRS-XB30’s replacement, the Sony ULT Field 3, is rated 3.4/5 at $208.
The Tribit Stormbox Flow is the better-sounding, deeper-bass pick. Up to 30 hours of battery life: roughly double most rivals (~20-24 hrs with XBass on). Its bass reaches about 47Hz before falling 10dB, against 55Hz for the Sony SRS-XB30. At 1.4 lbs (657 g) it weighs noticeably less than the Sony SRS-XB30 at 2.2 lbs (1 kg). It is rated IPX7 against IPX5 for the Sony SRS-XB30. The tradeoff: Midrange and bass are weirdly recessed about 4db below 700Hz.
Why pick the Sony SRS-XB30: A compact 2.2 lbs (1 kg) portable with IPX5 splash protection, aux input, LDAC/AAC support, Sony’s app, speakerphone capability, power-bank output, stereo pairing and Party Chain linking. It supports LDAC Bluetooth, which the Tribit Stormbox Flow lacks. It keeps a wired aux input, which the Tribit Stormbox Flow lacks. It plays in stereo from a single unit, unlike the Tribit Stormbox Flow. The tradeoff: Independent lab listening rates music fidelity only fair: bass has impact but is boomy and lacks the deepest notes, while the midrange can sound hazy, muffled and grainy.
Buy the Tribit Stormbox Flow. It is rated higher for sound quality, and the Sony SRS-XB30 is discontinued, so it is only available used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Tribit Stormbox Flow | Sony SRS-XB30 | |
|---|---|---|
| Price | $79.99 | $199 Discontinued |
| Ranked | #62 of 175 in Medium Size Portable Bluetooth Speakers | #133 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Music Center) |
| Bass Extension (-10dB) | 47Hz | 55Hz |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes | Yes |
| Bluetooth Latency | 400ms aac, 200ms sbc | - |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| Weight | 1.4 lbs (657 g) | 2.2 lbs (1000 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 25W | 20W |
| Drivers | 60W: 2x 30mm drivers + passive radiators | 2x 48mm full-range drivers + 2x passive radiators |
| IP Rating | IPX7 | IPX5 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC, AAC | SBC, AAC, LDAC |
| Aux Input | No | Yes |
| TWS | Yes | Yes |
| Power Input | USB-C | Micro USB |
| Party Mode | - | Yes (Partychain up to 100 speakers) |
| Built-in Microphone | - | Yes |
| Maximum SPL | - | 95dB (Manufacturer specified) |
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Prices on this page were last checked October 12, 2026 at 4:13 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
Tribit Stormbox Flow: $79.99 Tribit $79.99 eBay
Same family: the Tribit Stormbox Micro 2 (smaller model, rated 4.5/5), the Tribit Stormbox Pro (larger model, ranked higher, rated 3.7/5) and the Tribit Stormbox Blast (larger model, rated 4.5/5). See every Tribit Stormbox generation.
Pros: Up to 30 hours of battery life: roughly double most rivals (~20-24 hrs with XBass on). IP67 rated with a loose handle for carrying/hanging. Pairs with a second Flow for stereo; USB-C port charges your phone too. Measured bass extension of 47Hz (-10dB).
Cons: Not stereo. Midrange and bass are weirdly recessed about 4db below 700Hz. You need xbass mode for it to not sound like a clock radio with missing bass. You also can’t turn up the bass enough in the custom EQ modes to get it neutral, so it will sound bass light. Firmware 1.2.3 fixes the distortion issues with xbass mode on, but bass still sounds wobbly and uncontrolled.
Full Tribit Stormbox Flow review and specifications →
| Released | Oct 2023 (3 years ago) |
|---|---|
| Amplifier Power | 25W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Latency | 400ms aac, 200ms sbc |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) |
| Drivers | 60W: 2x 30mm drivers + passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.4 lbs (657 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Tribit Stormbox Flow - after firmware update More from Oluv’Sone →
- Oluv Patreon: Tribit Stormbox Flow - sound demo
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.3 game changing moment in portable bluetooth history! More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.5 - stuff gets fixed ✔
- Alan Ross - The Anti Shill!: DBSONO X-Blast F37 vs Tribit StormBox Flow - Cheap But Cheerful? 🙈
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs XSound Mega - Sound Comparison, Stock EQ, Both Mono Sound 😶🌫️ A Family Feud More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Head-to-Head Comparisons
- Tribit Stormbox Flow vs JBL Charge 4
- Tribit Stormbox Flow vs Bose Soundlink Revolve
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- See all 90 comparisons
Sony SRS-XB30: $199 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5, released Apr 2025. See every Sony XB and ULT generation.
Pros: A compact 1kg portable with IPX5 splash protection, aux input, LDAC/AAC support, Sony’s app, speakerphone capability, power-bank output, stereo pairing and Party Chain linking. It reaches a useful 95dB maximum level and has a claimed 24-hour battery life at moderate volume, making it a convenient older outdoor option. Measured bass extension of 55Hz (-10dB).
Cons: Independent lab listening rates music fidelity only fair: bass has impact but is boomy and lacks the deepest notes, while the midrange can sound hazy, muffled and grainy. Its micro-USB charging and older Bluetooth 4.2 platform now feel dated, so it is best considered for features and used-market value rather than sound quality. Discontinued.
Full Sony SRS-XB30 review and specifications →
| Released | Mar 2017 (9 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | Yes (Sony Music Center) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) |
| Drivers | 2x 48mm full-range drivers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IPX5 |
| Maximum SPL | 95dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.2 lbs (1000 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XB30 vs Soundcore Flare 2
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- See all 90 comparisons