Short answer: both are discontinued, so this only matters if you are buying used. Used, the JBL Partybox 310 is the better pick: it ranks #4 of 46 party speakers by sound quality (rated 4.5/5), against #42 (rated 2.3/5) for the Sony GTK-XB90. If you want one new, the JBL Partybox 330 replaces the JBL Partybox 310 and is rated 4.6/5 at $629.95.
The JBL Partybox 310 is the better-sounding, deeper-bass choice. Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. Its bass reaches about 32Hz before falling 10dB, against 50Hz for the Sony GTK-XB90. It is rated IPX4, while the Sony GTK-XB90 has no water resistance. It has an adjustable EQ, which the Sony GTK-XB90 lacks.
Why pick the Sony GTK-XB90: Deep punchy EXTRA BASS technology for party use. It supports LDAC Bluetooth, which the JBL Partybox 310 lacks. It links with other speakers (Partychain up to 100 speakers), which the JBL Partybox 310 cannot. The tradeoff: Bass is muddy and not deep, weird midrange peak, rolled off treble and overall strange tuning.
Buy the JBL Partybox 310 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, buy the JBL Partybox 330, which replaces the JBL Partybox 310.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Partybox 310 | Sony GTK-XB90 | |
|---|---|---|
| Price | $449.95 Discontinued | $429 Discontinued |
| Ranked | #4 of 46 in Party Size Portable Bluetooth Speakers | #42 of 46 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 32Hz | ~50Hz |
| Battery Life | 18 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Charging Time | 3.5 hours | - |
| EQ | Yes (3 band) | No |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | No | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A, 2.1A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 37.5 lbs (17 kg) | 30.9 lbs (14 kg) |
| Amplifier Power | 240W | - |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters | 12cm drivers + passive radiators |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | - |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) | 13.2” x 26.4” x 13.2” (336 x 670 x 335 mm) |
| Bluetooth Version | 5.1 | - |
| Strap | No | - |
Related Speaker Comparisons
How JBL Partybox 310 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 310
- JBL Partybox 310 vs JBL Partybox 330
- JBL Partybox 310 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox 310
- JBL Partybox 310 vs JBL Partybox Club 120
Prices on this page were last checked October 12, 2026 at 4:13 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
JBL Partybox 310: $449.95 Discontinued Amazon $449.95 eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5, released Jun 2026.
Older model: the JBL Partybox 300 (ranked lower, rated 4.3/5). See every JBL PartyBox generation.
Same family: the JBL Partybox 110 (smaller model, ranked lower, rated 4.4/5) and the JBL Partybox 710 (larger model, rated 4.7/5).
Pros: Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. Increase treble one step in the app EQ to make it more neutral. Customizable color lighting modes. Very close to the JBL Partybox Stage 320 in terms of performance. Measured bass extension of 32Hz (-10dB).
Cons: Very large. Discontinued.
Full JBL Partybox 310 review and specifications →
| Released | Sep 2020 (6 years ago) |
|---|---|
| Amplifier Power | 240W |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 32Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Charging Time | 3.5 hours |
| Digital Aux Input | No |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters |
| EQ | Yes (3 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.5 lbs (17 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: SONY SRS XP700 vs JBL PARTYBOX 310 First Impressions Binaural Sound Sample Sound Comparison More from DLXWillington →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- Jay’s Straight Up Reviews & More: LG XL7 vs JBL Partybox 310 🏠 Indoor Bluetooth Party Speaker Battle. Plugged in🔌
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Jay’s Straight Up Reviews & More: Basement Bass Battle 💣 Sony XV800 ☢️ LG XL7 🔆 JBL Partybox 310 ☣️ All Plugged in, Sound Comparison
- KULAS TECH SHOW: JBL Partybox 310, 100, on the Go Sound comparison More from KULASTECHSHOW20 →
- GYMCADDY: Soundboks Go Vs JBL Partybox 310 Vs Sony XP700 More from GYMCADDY →
- GYMCADDY: LG XBOOM XL7 Vs JBL Partybox 310 Vs Sony XP700
- Flossy Carter: JBL PartyBox 310 vs PartyBox 300 More from FlossyCarter →
- Stereo Specs: JBL PARTYBOX 310 VS SONY GTK XB72 SOUND TEST COMPARISON
- Head-to-Head Comparisons
- JBL Partybox 310 vs JBL Partybox Stage 320
- JBL Partybox 310 vs Sony ULT Tower 5
- JBL Partybox 310 vs JBL Partybox 330
- JBL Partybox 310 vs JBL Partybox Club 120
- JBL Partybox 310 vs JBL Partybox 130
- JBL Partybox 310 vs Sony ULT Tower 7
- JBL Partybox 310 vs JBL Partybox 100
- JBL Partybox 310 vs JBL Partybox 110
- See all 44 comparisons
Sony GTK-XB90: $429 Discontinued eBay
Newer model: the Sony SRS-XP700, ranked higher, rated 4/5, released Apr 2021 (also discontinued). See every Sony GTK, XP and XV generation.
Same family: the Sony GTK-XB60 (smaller model, ranked lower, rated 2.1/5).
Pros: Deep punchy EXTRA BASS technology for party use. 3x 2.36” tweeters + 2x 7.09” woofers, built-in LED lights sync with beat. 16 hours battery claimed (9 hours real-world at moderate volume with lights). Built-in handle, portable one-box design. Fiestable plugin controls party settings and DJ effects. Three-device simultaneous Bluetooth pairing. Measured bass extension of ~50Hz (-10dB).
Cons: Bass is muddy and not deep, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB90 review and specifications →
| Released | Sep 2017 (9 years ago) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~50Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Digital Aux Input | No |
| Dimensions | 13.2” x 26.4” x 13.2” (336 x 670 x 335 mm) |
| Drivers | 12cm drivers + passive radiators |
| EQ | No |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A, 2.1A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 30.9 lbs (14 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons