Short answer: the two sound very close, so buy on features rather than sound quality alone. They rank #4 and #3 of 53 party speakers, and the 310’s own notes call it very close to the Stage 320 in performance. The JBL Partybox 310 is discontinued; its replacement is the JBL Partybox 330.
The 310 still wins on raw bass. Its pros describe it as having the absolute deepest bass of any battery powered speaker and the most balanced sound in the class, reaching down to 32Hz. The Stage 320 counters by keeping more bass than the 310 at high volume, since the 310 can shelve down under strain, but the Stage 320’s own cons note it gets slightly sibilant in the treble at full blast, something the 310 does not report.
What the Stage 320 adds that the 310 does not:
- Auracast multi-speaker party mode, where the 310 has no party mode at all.
- A removable battery, letting you swap in a fresh one instead of waiting to recharge.
- A 5 band app EQ versus the 310’s 3 band, plus a newer Bluetooth 5.4 radio.
Everything else matches: both run 240W through dual 6.5 inch woofers and dual tweeters, both include guitar and karaoke microphone inputs with echo effect, both offer 18 hours of battery life, and both are large enough that neither is meant to be carried far.
Buy the JBL Partybox Stage 320 if you want Auracast, a swappable battery, and slightly cleaner treble at high volume, and don’t mind paying $10 more.
Buy the JBL Partybox 310 used if you can find one, since its deep bass and balanced sound still hold up even though it is no longer sold new.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| JBL Partybox 310 | JBL Partybox Stage 320 | |
|---|---|---|
| Price | $579.95 Discontinued | $569.95 |
| Ranked | #4 of 53 in Party Size Portable Bluetooth Speakers | #3 of 53 in Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 32Hz | - |
| Battery Life | 18 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Charging Time | 3.5 hours | - |
| EQ | Yes (3 band) | Yes (5 band) |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | No | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Partially |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 37.5 lbs (17 kg) | 36.4 lbs (16.5 kg) |
| Amplifier Power | 240W | 240W |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters | 2x 6.5” woofers, 2x 25mm tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) |
| Bluetooth Version | 5.1 | 5.4 |
| Strap | No | No |
| Removable Battery | - | Yes |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- 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: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To?
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