Short answer: the Bose SoundLink Plus, if you are buying new. The Vifa Oslo ranks higher than it (#8 vs #25 of 120 large speakers, 4.5/5 vs 4.2/5) but is discontinued, so only consider it used; the Bose SoundLink Plus is still sold new at $179.
What the Vifa Oslo does well: 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 Bose SoundLink Plus lacks. It keeps a wired aux input, which the Bose SoundLink Plus lacks. The catch: Dip at 270Hz.
The Bose SoundLink Plus is the longer-running, lighter pick. A waterproof mid size speaker with vibrant sound, booming bass, clean mids, a long battery and premium build. It is rated for 20 hours of battery against 8 for the Vifa Oslo. At 3.3 lbs (1.5 kg) it weighs noticeably less than the Vifa Oslo at 5.3 lbs (2.4 kg). It is rated IP67, while the Vifa Oslo has no water resistance. Watch for: Boosted thuddy bass, but not as deep as the SoundLink Flex and you should probably just buy one of those instead if you want a Bose.
Buy the Bose SoundLink Plus new; the Vifa Oslo is no longer sold new, so it only makes sense as a used find.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| Vifa Oslo | Bose SoundLink Plus | |
|---|---|---|
| Price | $549.00 Discontinued | $179.00 |
| Ranked | #8 of 120 in Large Size Portable Bluetooth Speakers | #25 of 120 in Large Size Portable Bluetooth Speakers |
| App | No (official app is broken, 3rd party android app only) | Yes |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 50Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, SBC | SBC |
| IP Rating | None | IP67 |
| Power Input | AC Power brick | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 5.3 lbs (2.4 kg) | 3.3 lbs (1.5 kg) |
| Built-in Microphone | Yes | No |
| EQ | No | No |
| Party Mode | No | Yes (Bose Party mode) |
| Power Bank | No | Yes (USB-C) |
| Bluetooth Version | 4.1 | 5.4 |
| Dimensions | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) | 9.1” x 3.9” x 3.4” (231 x 99 x 86 mm) |
| Drivers | 2x 50mm fullrange, 2x 80mm woofers + passive radiators | 1x 2.5” (63.5mm) woofer + 1x ~0.78” (20mm) tweeter + 4x passive radiators |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Amplifier Power | 50W | - |
| Strap | - | Yes (built-in loop) |
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