Comparison · sourced draft
JBL Charge 6 vs Bose SoundLink Flex (2nd Gen)
Evidence grade: sourced draft
TL;DR
DEPENDS — Charge 6 = runtime + volume + power bank (~$200 MSRP); Flex = packability + ~$150 MSRP + IP67 float.
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Who it’s for
- Charge 6: outdoor use (JBL IP68 + 1 m drop), a built-in power bank, Auracast pairing, and long hangs (up to 24 hours plus 4 hours Playtime Boost, JBL spec sheet).
- Flex: a smaller speaker than Charge 6 (Bose: 2.06" H × 7.93" W × 3.56" D, 1.291 lb), IP67 that floats, and pair-two Stereo Mode or Party Mode via the Bose app.
Who it’s not for
- Universal-winner hunters. There is no “best overall” here.
- Ultralight packers who need Charge-class output (Charge 6 is about 2.11–2.18 lb per JBL) — or all-day backyard volume on Flex (Bose: up to 12 hours typical, about 3 hours at max).
- Anyone who needs an aux jack. Charge 6: USB-C in/out, no aux/USB-A. Flex: no audio cable / no aux (Bose).
Decision-changing specs
Manufacturer claims and published themes. We did not measure these. No owned SPL or battery lab.
| JBL Charge 6 | Bose SoundLink Flex (2nd Gen) | |
|---|---|---|
| MSRP theme | ~$200 MSRP theme — confirm on Amazon | ~$150 MSRP theme — confirm on Amazon |
| Playtime | Up to 24 hours plus 4 hours Playtime Boost, dependent on volume/content (JBL spec sheet) | Up to 12 hours at typical levels, about 3 hours at max (Bose). TechGearLab measured 10.5 h in their test (their number, not ours). |
| IP | IP68 (lab: up to 1.5 m freshwater, 30 min) and drop-proof from 1 m (JBL) | IP67, floats (Bose) |
| Power bank | Yes — USB-C in/out (JBL) | Not listed as a power bank on the Bose.com specs used here |
| Size | Cylinder class; confirm dimensions on the JBL Charge 6 spec sheet. We do not invent mm figures. | 2.06" H × 7.93" W × 3.56" D (Bose) |
| Weight | About 2.11–2.18 lb (0.96–0.99 kg) per JBL | 1.291 lb (Bose) |
| Output theme | 45 W total: 30 W woofer + 15 W tweeter RMS; 53×93 mm woofer, 20 mm tweeter; 56 Hz–20 kHz (−6 dB) (JBL). We did not measure SPL. | No manufacturer wattage listed on the Bose.com specs used here. TechGearLab: sound-for-size (their framing, not our lab). |
| Extras | Auracast pairing with other JBL speakers; Bluetooth 5.4; 34 Wh battery; ~3 hour charge at 12–20 V / 3 A (JBL) | Stereo Mode or Party Mode via Bose app; Bluetooth 5.3; USB-C; ~4 hour charge; PositionIQ orientation EQ (Bose) |
| Cable | USB-C in/out; no aux / no USB-A; reviews note no cable in the box on some packs | USB-C; Bose: no audio cable / no aux |
Review themes (published — not our lab)
- Trusted Reviews on Charge 6: calls it the speaker to beat in class; notes bass could go deeper and highs could stand out more. That is their framing, not a lab result from this site.
- TechGearLab on Flex: praises sound-for-size and durability; notes shorter battery vs some rivals and no aux; they measured 10.5 h in their test (their number, not ours).
The rival is each other — a preference fork (runtime / volume / power bank vs packability / ticket / IP67 float), not a spec knockout. We are not repeating published dollar figures as current prices.
Hidden / recurring cost
USB-C brick: Charge 6 lists a ~3 hour charge at 12–20 V / 3 A (JBL) — do not assume a wall brick is in the box. Flex lists a ~4 hour USB-C charge (Bose). Some Charge 6 packs have no cable in the box (published review note). App lock-in: JBL Auracast pairing with other JBL speakers; Bose Stereo Mode / Party Mode via the Bose app. IP ratings are manufacturer lab claims, not a field test by this site.
Wait for a sale / skip if you own
No sticky dollar figure on this site — use the Amazon check-price links. MSRP themes (~$200 Charge 6 / ~$150 Flex) are themes, not a fake sale cutoff. If you already own either speaker, skip unless runtime + volume + power bank (Charge 6) or packability + IP67 float (Flex) is the reason you would switch. Check color ASINs; limited editions differ.
Bottom line
DEPENDS — Charge 6 = runtime + volume + power bank (~$200 MSRP); Flex = packability + ~$150 MSRP + IP67 float.
Sources: JBL Charge 6 spec sheet PDF / jbl.com Charge 6 page; Amazon White B0DPKYBDDJ, Blue B0DXKMD2NH; Bose.com SoundLink Flex 2nd Gen; Amazon Black B0D6WD2QSQ; Trusted Reviews (Charge 6); TechGearLab (Flex, including their 10.5 h measurement). This page is sourced draft copy — not a hands-on lab test by Actually Worth It. No owned SPL or battery lab.