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Head-to-head · Best Waterproof Bluetooth Speakers

Bose SoundLink Flex (2nd Gen) vs JBL Charge 6

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

JBL Charge 6 comes out ahead by a clear margin (3.9 vs 4.5). The gap is mostly about outdoor adventurers needing rugged waterproofing — read the strengths below before deciding.

Bose SoundLink Flex (2nd Gen)
Ranked #4 in Best Waterproof Bluetooth Speakers
Bose SoundLink Flex (2nd Gen)
2 sources$129as of Aug 1

The Bose SoundLink Flex (2nd Gen) keeps the durable, waterproof design of its predecessor and makes minor improvements to the control interface. SoundGuys praised the rugged build and IP67 rating and called it a good match for outdoor use, while noting lackluster EQ options and minimal hardware upgrades from the original. A TechRadar user pointed to its day-to-day reliability and portability. It's a solid choice for anyone who wants a dependable portable speaker for travel or outdoor activities.

Strengths
  • — IP67 rugged build for dust and water resistance
  • — Durable rubberized finish with metal speaker grill
  • — Improved control strip with dedicated Play/Pause button
Watch-outs
  • — Lackluster EQ options
  • — Minimal upgrades from 1st Gen
$129 · Check Price on AmazonFull review →
JBL Charge 6
Higher ratedRanked #1 in Best Waterproof Bluetooth Speakers
JBL Charge 6
7 sources$159.95as of Aug 1

The JBL Charge 6 improves on its predecessor with IP68 water resistance, a 7-band customizable EQ, thicker rubber bumpers, and drop-proof certification. PCMag's Mark Knapp liked the rugged design and the enhanced audio features but found that the Playtime Boost feature compromises sound quality. SoundGuys reviewer Shiun Okada called out the detachable handle and improved bass response, while flagging that it isn't backward compatible with older JBL models. Outdoor users who want a durable, weatherproof speaker with sound they can tune are the audience.

Strengths
  • — IP68 waterproof rating allows submersion up to 1.5 meters for 30 minutes
  • — 7-band customizable EQ available through JBL Portable app
  • — Detachable handle offers dual functionality as traditional handle or carrying loop
Watch-outs
  • — Playtime Boost feature negatively impacts sound quality
  • — No backwards compatibility with older JBL speakers using Party Boost
$159.95 · Check Price on AmazonFull review →

How they stack up

Bose SoundLink Flex (2nd Gen)

The Bose SoundLink Flex offers a rugged IP67 build and improved control strip, but lacks the EQ customization of the JBL Charge 6 and the advanced features of the JBL Boombox 4. Compared to the Soundcore Boom 3, it provides better sound quality and durability, though it has minimal upgrades from its predecessor. Unlike the Bose SoundLink Max, it's more affordable but lacks powerful bass and call functionality.

JBL Charge 6

The JBL Charge 6 stands out with its IP68 waterproof rating and detachable handle, features not found in the Soundcore Boom 3 or Bose SoundLink Flex. While the JBL Boombox 4 offers more playtime and multi-speaker support, the Charge 6's improved durability and customizable EQ via app make it a better choice for rugged outdoor use. Unlike the Bose SoundLink Max, it lacks premium sound transparency but provides superior drop protection and water resistance.

Specs side-by-side

SpecBose SoundLink Flex (2nd Gen)JBL Charge 6
Weight1.3 lb2.18 lb
WaterproofIP67IP68
BatteryUp to 12 hours24 hours (up to 28 hours with Playtime Boost)
ConnectivityBluetooth 5.3, USB-CBluetooth 5.4, USB-C (lossless audio and charging), Auracast
Dimensions7.99 x 1.77 x 3.5 in9.02 x 3.9 x 3.7 in
Color OptionsAlpine Sage, Sandstone, Blue Dust, BlackBlack, White, Pink, Red, Blue, Purple, Squad
Frequency Response—56 Hz - 20 kHz (-6 dB)
Wattage—50W
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