Short answer: the Harman Kardon Onyx Studio 4 for deeper bass, the Sonos Move for its warm, relaxed treble. The Move sounds warm with somewhat rolled off treble, but it is not stereo and has less bass extension than an Xtreme 2. The Onyx Studio 4 counters with deep resonant bass, crisp treble and a large dynamic range, at $100 versus $292.22, though its 8 hour battery is modest.
Buy the Sonos Move only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Lava instead.
If water resistance matters to you, the Sonos Move at IP56 (powerful water jets) holds up far better than the Harman Kardon Onyx Studio 4 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Onyx Studio 4 | Sonos Move | |
|---|---|---|
| Price | $100 Discontinued | $292.22 Discontinued |
| Ranked | #65 of 102 in Large Size Portable Bluetooth Speakers | #30 of 102 in Large Size Portable Bluetooth Speakers |
| App | Yes (HK Connect) | No |
| Aux Input | Yes | Yes |
| Battery Life | 8 hours (Manufacturer specified) | 11 hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | None | IP56 |
| Party Mode | Yes (Connect+ up to 100 speakers) | No |
| Power Bank | No | No |
| TWS | Yes | Yes |
| Weight | 4.5 lbs (2.06 kg) | 6.6 lbs (3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Power Input | DC Barrel Connector (19V/2.1A) | USB-C (requires USB-C PD 12v minimum) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 4.2 | 4.2 |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator | 1x 3.5” (89mm) mid-woofer + 1x downward-firing tweeter (tweeter size undisclosed by Sonos) |
| Dimensions | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) | 9.4” x 6.3” x 5” (240 x 160 x 126 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 60W | - |
| Digital Aux Input | No | No |
| Strap | No | No |
| Bass Extension (-10dB) | - | 49Hz |
| Wi-Fi | - | Yes |
| Voice Assistants | - | Amazon Alexa or Google Assistant (choose one) plus Sonos Voice Control |
| Maximum SPL | - | 92dB (Manufacturer specified) |
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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
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
- Harman Kardon Onyx Studio 4 vs Tronsmart Halo 100
- Harman Kardon Onyx Studio 4 vs Zealot S97
- Harman Kardon Onyx Studio 4 vs JBL Xtreme
- Harman Kardon Onyx Studio 4 vs JBL Xtreme 2
- Harman Kardon Onyx Studio 4 vs Doss Soundbox XL
- Harman Kardon Onyx Studio 4 vs W-King D8
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- See all 47 comparisons
Sonos Move: $292.22 Discontinued Amazon eBay
Newer model: the Sonos Move 2, ranked higher, rated 4.1/5.
Pros: A well-integrated Sonos portable that combines Wi-Fi multiroom playback, Bluetooth, automatic Trueplay room tuning and a charging base in a sturdy carryable enclosure. Reviews praise its broad, full-bodied sound, warm tonal balance and weightier bass than smaller Sonos speakers, particularly at normal indoor listening levels. Measured bass extension of 49Hz (-10dB).
Cons: It is mono, heavy and less portable than a conventional Bluetooth speaker, while bass pumping and compression become audible at high volume. Deep bass and maximum output trail the strongest speakers in its size class, and the rolled-off treble sacrifices some air and detail. It is discontinued in favor of Move 2, so buy used with battery condition in mind.
Full Sonos Move review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 11 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.4” x 6.3” x 5” (240 x 160 x 126 mm) |
| Drivers | 1x 3.5” (89mm) mid-woofer + 1x downward-firing tweeter (tweeter size undisclosed by Sonos) |
| EQ | No |
| IP Rating | IP56 |
| Maximum SPL | 92dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C (requires USB-C PD 12v minimum) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Voice Assistants | Amazon Alexa or Google Assistant (choose one) plus Sonos Voice Control |
| Weight | 6.6 lbs (3 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Ezekielo: JBL Xtreme 2 vs Sonos Move with Sound Comparison
- NeverEnoughTech: soundcore Motion X600 vs. Sonos Move vs. Bose Soundlink Revolve II
- Smart Home Sounds: Best Premium Bluetooth Speakers: Sonos Move, JBL Xtreme 3, Marshall Middleton & More… More from Smart Home Sounds →
- Smart Home Sounds: Sonos Move 1 Vs Move 2: What’s The Difference?
- Head-to-Head Comparisons