Short answer: the Teufel Rockster Cross, if you are buying new. The Vifa Oslo ranks higher than it (#8 vs #23 of 120 large speakers, 4.5/5 vs 4.2/5) but is discontinued, so only consider it used; the Teufel Rockster Cross is still sold new at $199.99.
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. The catch: Dip at 270Hz.
The Teufel Rockster Cross is the longer-running, tougher option. A splash resistant speaker with fairly neutral, vocal focused sound and punchy, controlled bass that suits rock and jazz. It is rated for 16 hours of battery against 8 for the Vifa Oslo. It is rated IPX5, while the Vifa Oslo has no water resistance. Watch for: Outdoor mode can sound somewhat harsh due to the 4kHz peak.
Buy the Teufel Rockster Cross, since the Vifa Oslo is discontinued and only worth hunting down 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
| Vifa Oslo | Teufel Rockster Cross | |
|---|---|---|
| Price | $549.00 Discontinued | $199.99 |
| Ranked | #8 of 120 in Large Size Portable Bluetooth Speakers | #23 of 120 in Large Size Portable Bluetooth Speakers |
| App | No (official app is broken, 3rd party android app only) | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 50Hz | 51Hz |
| Battery Life | 8 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, SBC | SBC, aptX |
| IP Rating | None | IPX5 |
| Power Input | AC Power brick | DC barrel jack |
| Stereo | Partially (1 woofer) | Partially |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 5.3 lbs (2.4 kg) | 5.3 lbs (2.4 kg) |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | No | Yes (USB-A) |
| Bluetooth Version | 4.1 | 5.0 |
| Dimensions | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) | 15” x 6.3” x 5.1” (380 x 160 x 130 mm) |
| Drivers | 2x 50mm fullrange, 2x 80mm woofers + passive radiators | 5” woofer, 2x textile dome tweeters + 2x passive radiators |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Digital Aux Input | No | No |
| Amplifier Power | 50W | 30W |
| Strap | - | Yes (detachable shoulder strap) |
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