Short answer: the ELAC Nava100 for better sound quality, the Teufel Rockster Go 2 for the lower price. The ELAC Nava100 ranks #87 of 179 medium speakers, rated 3.3/5, at $199.99. The Teufel Rockster Go 2 ranks #93, rated 3.2/5, at $99.99, $100 cheaper.
Why pick the ELAC Nava100: A small hi-fi brand portable with a 3 inch full range driver and two passive radiators. The tradeoff: Alan Ross measured the JBL Charge 6 over 5 dB louder at full volume, with far more bass above half volume.
The Teufel Rockster Go 2 is the lighter, tougher option. A light, rugged waterproof speaker with very long battery life in eco mode, stereo pairing and a tripod mount. At 1.6 lbs (735 g) it weighs much less than the ELAC Nava100 at 3.1 lbs (1.4 kg). It is rated IP67, while the ELAC Nava100 has no water resistance. It supports AAC Bluetooth, which the ELAC Nava100 lacks. The catch: There is no companion app or 3.5 mm input.
Buy the ELAC Nava100 when sound quality outweighs the price for you, and the Teufel Rockster Go 2 when the price outweighs sound quality instead.
Want more options? Browse the full Portable Bluetooth rankings.
A small hi-fi brand portable with a 3 inch full range driver and two passive radiators.
A light, rugged waterproof speaker with very long battery life in eco mode, stereo pairing and a tripod mount.
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
| ELAC Nava100 | Teufel Rockster Go 2 | |
|---|---|---|
| Price | $199.99 | $99.99 |
| Ranked | #87 of 179 in Medium Size Portable Bluetooth Speakers | #93 of 179 in Medium Size Portable Bluetooth Speakers |
| Amplifier Power | 10W | 8W |
| App | No | Yes (Teufel Go) |
| Aux Input | No | No |
| Battery Capacity | 5000mAh | - |
| Battery Life | 15 hours at 25% volume, 6 hours at full volume (Manufacturer specified) | 15 hours, 28 with Eco Mode (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| Bluetooth Version | 5.3 | - |
| Built-in Microphone | Yes | No |
| Charging Time | 4 to 5 hours | 2.5 hours (Manufacturer specified) |
| Dimensions | 5”H x 5.9”W x 3.1”D (128 x 150 x 78 mm) | 8.3” x 4.3” x 2.4” (211 x 109 x 61 mm) |
| Drivers | 1x 3” full range + 2x passive radiators | 2x 50mm wide-band drivers + 1x 64mm passive radiator |
| EQ | No | Yes |
| Frequency Response | 55Hz - 19.6kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | None | IP67 |
| Omnidirectional | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Strap | No | Yes (detachable strap) |
| TWS | Yes | Yes |
| Weight | 3.1 lbs (1.4 kg) | 1.6 lbs (735 g) |
| Party Mode | - | Yes (Party Link, up to 100 speakers) |
| Digital Aux Input | - | Yes (USB-C sound card) |
| Power Bank | - | No |
| USB Playback | - | No |
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