Short answer: the Brane X. It ranks #4 of 120 large speakers by sound quality (rated 4.6/5) at $549 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 Brane X is the deeper-bass, longer-running option. A portable speaker with extraordinarily deep bass for its size, plus Wi-Fi, AirPlay, Alexa and a low latency aux input. Its bass reaches about 31Hz before falling 10dB, against 50Hz for the Vifa Oslo. It is rated for 12 hours of battery against 8 for the Vifa Oslo. It is rated IP57, while the Vifa Oslo has no water resistance. The catch: The front-facing design has only moderate dispersion, so sound changes noticeably off to the sides or behind it.
The Vifa Oslo is the lighter option. A premium wool covered portable with full, natural, highly accurate sound and rich bass, now discontinued but worth buying used. At 5.3 lbs (2.4 kg) it weighs noticeably less than the Brane X at 7.7 lbs (3.5 kg). Watch for: Dip at 270Hz.
Buy the Brane X. It is rated higher for sound quality and still sold new, while the Vifa Oslo is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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
| Brane X | Vifa Oslo | |
|---|---|---|
| Price | $549.00 | $549.00 Discontinued |
| Ranked | #4 of 120 in Large Size Portable Bluetooth Speakers | #8 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 295ms default, 33ms with aux pass-through | - |
| Bass Extension (-10dB) | 31Hz | 50Hz |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX HD, aptX, AAC, SBC | aptX, SBC |
| IP Rating | IP57 | None |
| Bluetooth Latency | 100ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Brane app, up to 8 speakers) | No |
| Power Input | AC Power brick | AC Power brick |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 7.7 lbs (3.5 kg) | 5.3 lbs (2.4 kg) |
| Wi-Fi | Yes | - |
| App | Yes (Brane app) | No (official app is broken, 3rd party android app only) |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Amazon Alexa | - |
| EQ | Yes (5 band) | No |
| Power Bank | No | No |
| Dimensions | 9.3” x 7” x 6.1” (236 x 178 x 155 mm) | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) |
| Drivers | 2x 2.5” midrange, 2x 0.75” tweeters + 6.5”x9” subwoofer | 2x 50mm fullrange, 2x 80mm woofers + passive radiators |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | 55Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 200W | 50W |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.1 | 4.1 |
| Strap | No | - |
Related Speaker Comparisons
More top alternatives to Brane X: