Short answer: the Bose SoundLink Flex is the smaller floating speaker, while the JBL Charge 5 is the longer-running power-bank option. Bose ranks #36 of 142; JBL ranks #28 of 142.
Flex is IP67, floats, and is easy to carry at 589g. Its warm bass-forward balance can bury midrange detail, but it is a compelling poolside and travel form factor.
Charge 5 is larger and reaches 99dB with a claimed 20-hour battery and USB-A output for a phone. Its tuning is also warm, with shouty upper mids, so the decision is primarily practical.
Buy the Bose SoundLink Flex at $159 if a compact floating speaker is the requirement.
Buy the JBL Charge 5 at $179.95 if you want more runtime, output, and a power bank.
On the Bose Soundlink Flex side: IP67 rated. The tradeoff: Warm sounding with overly boosted bass which drowns out midrange detail.
The case for the JBL Charge 5: Doubles as a power bank (USB-A out) for charging your phone. Set against that: Warm sound.
Battery life favors the JBL Charge 5: rated for 20 hours against 12 hours for the Bose Soundlink Flex.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Flex | JBL Charge 5 | |
|---|---|---|
| Price | $159.00 | $179.95 |
| Ranked | #36 of 142 in Medium Size Portable Bluetooth Speakers | #28 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 56Hz | 53Hz |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes (dual microphones) |
| EQ | No | Yes (3 band) |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 33ms | 125ms |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 99dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Bose Party mode) | Yes (PartyBoost up to 100 speakers) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (589 g) | 2.1 lbs (960 g) |
| Bluetooth Version | 4.2 | 5.1 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 8.8" x 3.8" x 3.7" (223 x 96.5 x 94 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators | 53mm x 93mm woofer, 20mm tweeter |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | AAC, SBC |
| Aux Input | No | No |
| Power Bank | - | Yes (USB-A, 5V/2A) |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 40W |
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Prices on this page were last checked September 23, 2026 at 11:24 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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The Two Speakers In Full
Bose Soundlink Flex: $159.00 Amazon eBay
Pros: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume. Measured bass extension of 56Hz (-10dB).
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Full Bose Soundlink Flex review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 33ms |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs (589 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞 More from alanrossreviews →
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex
- Alan Ross Reviews: Beats Pill vs Harman Luna vs Bose Flex vs Soundcore Motion Plus
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- Alan Ross Reviews: Bose Soundlink Flex vs Soundcore Boost vs Bogasing M4 - cheap or Bose?
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers More from JaysStraightUpReviews →
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Alan Ross Reviews: Bose Soundlink Flex or Beosound A1 (1st gen) - ultimate compact speaker 😇
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- Danny Pops: BEST Bose Speaker?? Bose Soundlink Flex vs micro, Color II, and revolve + More from DannyPops →
- Alan Ross Reviews: Bose Soundlink Flex vs Minirig MK3 and Marshall Emberton - best bluetooth speaker?
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
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JBL Charge 5: $179.95 Amazon B&H Photo Video eBay
Pros: Doubles as a power bank (USB-A out) for charging your phone. IP67 rated, survives a 1m dunk for 30 minutes. ~20 hour battery life. Measured bass extension of 53Hz (-10dB).
Cons: Not stereo. Warm sound. Shouty upper mids. Boosted bass. Slightly rolled off treble. Overly expensive.
Full JBL Charge 5 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 125ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes (dual microphones) |
| Digital Aux Input | No |
| Dimensions | 8.8" x 3.8" x 3.7" (223 x 96.5 x 94 mm) |
| Drivers | 53mm x 93mm woofer, 20mm tweeter |
| EQ | Yes (3 band) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.1 lbs (960 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Charge 6 or the JBL Charge 5? don’t go home till you watch this! More from alanrossreviews →
- Mateusz Cholewa: JBL Charge 6 🎶👌Unboxing 📦vs Jbl Charge 5 Short Test Audio i Hz. More from Mateusz Cholewa →
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- Alan Ross Reviews: JBL Charge 5 vs Motion Plus and Sony XB33 - ultimate travel speaker 2021 🤗
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- Oluv Patreon: JBL Charge 5 - unboxing & first impressions More from Oluv’Sone →
- Alan Ross Reviews: Bogasing M4 Review - vs JBL Charge 5 & Motion Plus - a new contender?
- The Tech Files: JBL CHARGE 5 Vs. CHARGE ESSENTIAL 2 #shorts
- Alan Ross Reviews: Huawei sound joy vs JBL Charge 5 and Flip 6 - top mono speaker! 🤓
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
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- Storytripper HD: Klipsch Nashville vs JBL Charge 5 More from storytripperhd →
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- DIGI-EARS: Xdobo X8 Max vs. JBL Charge 5 vs. Anker Soundcore Motion+ vs. Tribit Stormbox Pro Sound Test Battle More from DigitalSlang →
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