Short answer: the Sonos Move 2. It ranks #28 of 102 large speakers by sound quality (rated 4.1/5) at $480 and is still sold new; the Harman Kardon Onyx Studio 4 ranks #65 (rated 3.3/5) and is discontinued, so it is only an option used.
The Sonos Move 2 is the better-sounding, longer-running option. Warm sounding with somewhat rolled off treble. It is rated for 24 hours of battery against 8 for the Harman Kardon Onyx Studio 4. It is rated IP56, while the Harman Kardon Onyx Studio 4 has no water resistance. The tradeoff: Not very loud.
The Harman Kardon Onyx Studio 4 is the lighter option. Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. At 4.5 lbs (2.06 kg) it weighs noticeably less than the Sonos Move 2 at 6.6 lbs (3 kg). It links with other speakers (Connect+ up to 100 speakers), which the Sonos Move 2 cannot. Watch for: 8 hour battery at medium volume.
Buy the Sonos Move 2. It is rated higher for sound quality and still sold new, while the Harman Kardon Onyx Studio 4 is discontinued.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sonos Move 2 | Harman Kardon Onyx Studio 4 | |
|---|---|---|
| Price | $480.00 | $100 Discontinued |
| Ranked | #28 of 102 in Large Size Portable Bluetooth Speakers | #65 of 102 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IP56 | None |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 6.6 lbs (3 kg) | 4.5 lbs (2.06 kg) |
| Wi-Fi | Yes | - |
| App | No | Yes (HK Connect) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Amazon Alexa (Sonos Voice Control also built in) | - |
| EQ | No | No |
| Party Mode | No | Yes (Connect+ up to 100 speakers) |
| TWS | Yes | Yes |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 9.5” x 6.3” x 5” (242 x 160 x 126 mm) | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | mid-woofer, 2x angled tweeters | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| Digital Aux Input | No | No |
| Strap | No | No |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 60W |
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How Sonos Move 2 compares with other leading options:
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- JBL Xtreme 5 vs Sonos Move 2
- Sonos Move 2 vs Tribit Stormbox Lava
- Brane X vs Sonos Move 2
- Sonos Move 2 vs Minirig 4 with subwoofer
Prices on this page were last checked October 4, 2026 at 9:58 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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The Two Speakers In Full
Sonos Move 2: $480.00 Amazon eBay
Older model: the Sonos Move (ranked lower, rated 4.1/5).
Pros: Warm sounding with somewhat rolled off treble. Slightly better midrange clarity than the Move 1.
Cons: Not very loud. It may share the Move 1’s full-volume issues, though more sound samples at full volume are needed to confirm that.
Full Sonos Move 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.5” x 6.3” x 5” (242 x 160 x 126 mm) |
| Drivers | mid-woofer, 2x angled tweeters |
| EQ | No |
| IP Rating | IP56 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Voice Assistants | Amazon Alexa (Sonos Voice Control also built in) |
| Weight | 6.6 lbs (3 kg) |
| Wi-Fi | Yes |
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Harman Kardon Onyx Studio 4: $100 Discontinued eBay
Newer model: the Harman Kardon Onyx Studio 9, rated 4.1/5.
Pros: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. Multi-host Bluetooth connectivity for 2 phones, daisy chaining up to 100 speakers. Elegant modern design with smooth curves and premium materials.
Cons: 8 hour battery at medium volume. Not at loud as others. Not as deep of bass as the newer Onyx. External AC power brick for charging. Discontinued.
Full Harman Kardon Onyx Studio 4 review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | Yes (HK Connect) |
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 4.5 lbs (2.06 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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