Short answer: the Vifa Helsinki for midrange and treble. It is generally regarded as having the best midrange and treble sound quality of any battery-powered Bluetooth speaker, though it has no TWS pairing, looks like a purse, and needs a hacked Android-only Vifa app to enable the night mode that makes it sound good. The DALI Katch G2 is pretty neutral but loses bass after 40% volume and is called horribly overpriced.
Buy the DALI Katch G2 if you want one new; the Vifa Helsinki is discontinued, so only look for it used.
If water resistance matters to you, the DALI Katch G2 at IPX7 (brief submersion) holds up far better than the Vifa Helsinki at no water resistance.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A slim 1.1 kg stereo speaker with IPX7 waterproofing, a 30-hour battery, aptX HD Bluetooth and a USB power bank output.
Amazon $750.00 eBay
Generally regarded as the best midrange and treble sound quality of any battery powered Bluetooth speaker.
Amazon $449.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 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
| DALI Katch G2 | Vifa Helsinki | |
|---|---|---|
| Price | $750.00 | $449.00 Discontinued |
| Ranked | #84 of 105 in Large Size Portable Bluetooth Speakers | #1 of 105 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 30 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Charging Time | 2 hours | - |
| Weight | 2.4 lbs (1.1 kg) | 3.1 lbs (1.4 kg) |
| App | No | No (official app is broken, 3rd party android app only) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD | aptX, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | None |
| Party Mode | No | No |
| Power Bank | Yes (USB) | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Partially (shared woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Bluetooth Version | 5.0 | 4.1 |
| Drivers | 2x 89mm woofers, 2x 21mm tweeters | 2x 50mm fullrange, 2x 66mm woofers + 2x passive radiators |
| Dimensions | 10.6” x 5.4” x 1.9” (269 x 138 x 47 mm) | 6.1” x 8.3” x 2.8” (156 x 210 x 70 mm) |
| Frequency Response | 49Hz - 23kHz (Manufacturer specified) | 58Hz - 18kHz (Manufacturer specified) |
| Amplifier Power | 50W RMS | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 48Hz |
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