These are not really the same size class, and that is the honest framing here. The Hisense FlexBoom ranks #78 of 120 large speakers by sound quality at $119.99; the JBL Charge 6 ranks #12 of 179 medium speakers by sound quality at $149.95.
The case for the Hisense FlexBoom: A compact waterproof speaker with a 20 hour battery, a detachable strap and Auracast. It keeps a wired aux input, which the JBL Charge 6 lacks. The catch: No trustworthy listening comparison or measurement of this model exists yet, so its rating is an estimate from its price class and the larger Hisense VoyageBoom, which disappointed in direct comparison.
The JBL Charge 6 is the lighter pick. A waterproof medium speaker with a long battery and a power bank output, with more balanced sound than older Charge models. At 2.2 lbs (990 g) it weighs noticeably less than the Hisense FlexBoom at 3.3 lbs (1.5 kg). The tradeoff: Still some boosted bass by default.
Buy the Hisense FlexBoom at $119.99 if you want a large speaker. Buy the JBL Charge 6 at $149.95 if you want a medium speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A compact waterproof speaker with a 20 hour battery, a detachable strap and Auracast.
A waterproof medium speaker with a long battery and a power bank output, with more balanced sound than older Charge models.
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
| Hisense FlexBoom | JBL Charge 6 | |
|---|---|---|
| Price | $119.99 | $149.95 |
| Ranked | #78 of 120 in Large Size Portable Bluetooth Speakers | #12 of 179 in Medium Size Portable Bluetooth Speakers |
| Amplifier Power | 40W | 45W |
| App | Yes (ConnectLife) | Yes |
| Aux Input | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 6.0 | 5.4 |
| Built-in Microphone | Yes | No |
| Charging Time | 3 hours | - |
| Dimensions | 9.5” x 4” x 4.2” (241 x 102 x 107 mm) | 9” x 3.9” x 3.7” (228.8 x 98.5 x 94 mm) |
| Drivers | 1x woofer + 1x tweeter + 2x passive radiators | 53mm x 93mm woofer, 20mm tweeter |
| EQ | Yes (App EQ) | Yes (7 band) |
| IP Rating | IP67 | IP68 |
| Lights | No | - |
| Omnidirectional | No | No |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | No | Yes (USB-C, 5V/2.4A) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Strap | Yes (detachable strap) | Yes (detachable strap) |
| TWS | Yes | Yes |
| Weight | 3.3 lbs (1.5 kg) | 2.2 lbs (990 g) |
| Bass Extension (-10dB) | - | 53Hz |
| Digital Aux Input | - | Yes (USB-C) |
| Maximum SPL | - | 102dB (measured by Alan Ross Reviews) |
| Frequency Response | - | 56Hz - 20kHz (-6dB) (Manufacturer specified) |
| Bluetooth Codecs | - | SBC, AAC |
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