Short answer: the JBL Xtreme 4 for practicality, the Vifa Helsinki for midrange and treble quality. The Xtreme 4 has a removable battery but is high priced. The Helsinki is generally regarded as having the best midrange and treble of any battery powered Bluetooth speaker, provided you accept no TWS pairing and a hacked Vifa app to enable night mode.
Buy the JBL Xtreme 4 if you want one new; the Vifa Helsinki is discontinued, so only look for it used.
If water resistance matters to you, the JBL Xtreme 4 at IP67 (brief submersion) holds up far better than the Vifa Helsinki at no water resistance.
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.
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Specifications Side By Side
| JBL Xtreme 4 | Vifa Helsinki | |
|---|---|---|
| Price | $309.95 | $449.00 Discontinued |
| Ranked | #43 of 120 in Large Size Portable Bluetooth Speakers | #1 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No (official app is broken, 3rd party android app only) |
| Aux Input | No | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| EQ | Yes (5 band) | No |
| IP Rating | IP67 | None |
| Bluetooth Latency | 220ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | AC Power brick |
| Removable Battery | Yes | - |
| TWS | Yes | No |
| Weight | 4.6 lbs (2.1 kg) | 3.1 lbs (1.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX, SBC |
| Built-in Microphone | Yes | Yes |
| Stereo | Yes | Partially (shared woofer) |
| Omnidirectional | No | No |
| Bluetooth Version | 5.3 | 4.1 |
| Dimensions | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) | 6.1” x 8.3” x 2.8” (156 x 210 x 70 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators | 2x 50mm fullrange, 2x 66mm woofers + 2x passive radiators |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) | 58Hz - 18kHz (Manufacturer specified) |
| Amplifier Power | 100W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 48Hz |
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