Short answer: the JBL Partybox 310 for bass and balance, the Bose S1 Pro+ for portability. The 310 has the deepest bass of any battery powered speaker and the most balanced sound in its class, plus a handle and wheels, though it is very large. The Bose is extremely compact and light with flexible placement, but distorts above two thirds volume with full range music. The JBL Partybox 310 is discontinued; its replacement is the JBL Partybox 330.
Buy the JBL Partybox 310 at $449.95 if you want a party speaker. Buy the Bose S1 Pro+ at $699 if you want a battery-powered PA speaker instead.
There is a real battery-life gap here: the JBL Partybox 310 is rated for 18 hours, the Bose S1 Pro+ only 11 hours.
Water resistance is not close: the JBL Partybox 310 is rated at IPX4 (splashing), well ahead of the Bose S1 Pro+ at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings and PA & Live Sound rankings.
Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient.
Amazon $449.95 eBay
Extremely compact and light with flexible placement options, and very loud for its size.
Amazon $699.00 eBayPrices on this page were last checked October 17, 2026 at 6:04 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| JBL Partybox 310 | Bose S1 Pro+ | |
|---|---|---|
| Price | $449.95 Discontinued | $699.00 |
| Ranked | #4 of 49 in Party Size Portable Bluetooth Speakers | #6 of 16 in Battery-Powered PA Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 32Hz | 55Hz |
| Battery Life | 18 hours (Manufacturer specified) | 11 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | AAC, SBC |
| Charging Time | 3.5 hours | 5 hours |
| EQ | Yes (3 band) | Yes |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes |
| Party Mode | No | Yes (Bose Party mode) |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 37.5 lbs (17 kg) | 14.3 lbs (6.5 kg) |
| Amplifier Power | 240W | 150W |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters | 1x 6” (152mm) woofer + 3x 2.25” (57mm) tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) | 13.1” x 9.4” x 11” (332.7 x 238.8 x 279.4 mm) |
| Bluetooth Version | 5.1 | 5.0 |
| Strap | No | - |
| Passive | - | No |
| Inputs | - | 2x XLR/6.3mm combo (mic/line/instrument), 6.3mm line, 3.5mm stereo, Bluetooth |
| XLR Input | - | Yes |
| Maximum SPL | - | 109dB |
| Configuration | - | Battery-powered 2-way active PA |
| Cabinet Material | - | Polypropylene |
| Rigging | - | 35mm pole mount; multi-position cabinet |
| DSP | - | 3-channel mixer with EQ, reverb and Auto EQ |
| Bass Extension (-3dB) | - | 62Hz |
| Coverage | - | 120° H x 50° V |
Related Speaker Comparisons
How JBL Partybox 310 compares with other leading options: