Short answer: the Tribit Stormbox Lava. It ranks #3 of 120 large speakers by sound quality (rated 4.6/5) at $139.99 and is still sold new; the Vifa Oslo ranks #8 (rated 4.5/5) and is discontinued, so it is only an option used.
The Tribit Stormbox Lava is the deeper-bass, longer-running option. A loud, waterproof large speaker with strong bass, a long battery and an aux input, for far less than its rivals. Its bass reaches about 44Hz before falling 10dB, against 50Hz for the Vifa Oslo. It is rated for 24 hours of battery against 8 for the Vifa Oslo. It is rated IP67, while the Vifa Oslo has no water resistance. Watch for: XBass can make the low end muddy and obscure vocals, while the deepest notes lose authority and clarity falls at maximum volume.
The case for the Vifa Oslo: A premium wool covered portable with full, natural, highly accurate sound and rich bass, now discontinued but worth buying used. It supports aptX Bluetooth, which the Tribit Stormbox Lava lacks. The tradeoff: Dip at 270Hz.
Buy the Tribit Stormbox Lava. It is rated higher for sound quality, and the Vifa Oslo is discontinued, so it is only available used.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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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Specifications Side By Side
| Tribit Stormbox Lava | Vifa Oslo | |
|---|---|---|
| Price | $139.99 | $549.00 Discontinued |
| Ranked | #3 of 120 in Large Size Portable Bluetooth Speakers | #8 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No (official app is broken, 3rd party android app only) |
| Aux Input | Yes | Yes |
| Aux Latency | 20ms | - |
| Bass Extension (-10dB) | 44Hz | 50Hz |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | aptX, SBC |
| Bluetooth Latency | 128ms AAC, 144ms SBC | - |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band) | No |
| IP Rating | IP67 | None |
| Maximum SPL | 108dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-A) | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 5.2 lbs (2.37 kg) | 5.3 lbs (2.4 kg) |
| Bluetooth Version | 5.4 | 4.1 |
| Dimensions | 12.2” x 5.8” x 6” (310 x 147 x 152 mm) | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) |
| Drivers | 2x 70mm woofers, 2x 30mm tweeters | 2x 50mm fullrange, 2x 80mm woofers + passive radiators |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | 55Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 80W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | - |
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