Short answer: the Vifa Oslo for build and sound, the Soundcore Motion X600 at $159.99. The Oslo pairs extreme treble detail and rich bass from opposing 65mm woofers with a premium Kvadrat wool and aluminum build and 10 hours of battery, against a 270Hz dip and a cheaper, more neutral Helsinki. The X600 improves greatly on firmware 4.2.9, but its stock response is wavy, its bass is not very deep, and it needs a different EQ per volume.
The appeal of the Vifa Oslo: extreme treble detail paired with decent bass, full natural accurate sound at higher volumes, rich bass from its opposing 65mm woofers, and a premium Kvadrat wool and aluminum build with 10 hours of battery life. That’s offset by: a dip at 270Hz, and the fact that the cheaper Vifa Helsinki is generally more neutral if you specifically want a Vifa, while the Uboom L offers 95% of the sound quality for a lot less money.
Buy the Soundcore Motion X600 if you want one new; the Vifa Oslo is discontinued, so only look for it used.
Water resistance is not close: the Soundcore Motion X600 is rated at IPX7 (brief submersion), well ahead of the Vifa Oslo at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| Soundcore Motion X600 | Vifa Oslo | |
|---|---|---|
| Price | $159.99 | $549.00 Discontinued |
| Ranked | #19 of 120 in Large Size Portable Bluetooth Speakers | #8 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 52Hz | 50Hz |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IPX7 | None |
| Bluetooth Latency | 83ms | - |
| Maximum SPL | 104dB (measured by Alan Ross Reviews) | - |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 5.2 lbs (2.35 kg) | 5.3 lbs (2.4 kg) |
| App | No | No (official app is broken, 3rd party android app only) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | LDAC, SBC | aptX, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | Yes (PartyCast up to 100 speakers) | No |
| Bluetooth Version | 5.3 | 4.1 |
| Dimensions | 11.8” x 4.8” x 3.2” (300 x 121 x 81 mm) | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) |
| Drivers | 2x 60mm woofers, 2x 27mm tweeters, 1x 50mm upward-firing driver | 2x 50mm fullrange, 2x 80mm woofers + passive radiators |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) | 55Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 50W | 50W |
| Digital Aux Input | No | No |
| Strap | No | - |
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