Bose - SoundLink Flex (2nd Gen)
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Based on 1 year's data from Jan 28, 2026 How it works
Liked most:
411
101
"it sounds fucking amazing. ... I was blown away at Best Buy. I thought this was fake somehow like there is no way this thing is producing that bass and that level. ... The speaker is phenomenal. ... At first it was almost too bass heavy; but after an hour or two of playtime it broke in and the mids came alive, without loosing any bass. ... it still sounds fucking incredible."
"DIRAC which is like Dolby sound, so the soundstage is immersive and incredible. ... I could hear the orchestra turning the pages of their music. I could hear the hair of the bow as it glided across the bridge of a violin. It was like being in the middle of a concert hall. It was a little insane for this price range. ... The music had a broader soundstage back then in the studio...they took their time. Tweak your streaming service to lossless quality too, and then close your eyes and imagine the music happening TO YOU. Music should be a whole experience, not a time killer."
"still have quality sound and bass ... With a slight adjustment in the bass on Spotify + spatial sound, the Airpods fly! The bass and quality of the Airpods almost reach the same level as the XM4!"
422
104
"It's also absolutely unbreakable ... I have it since 3 years, done ton of afters, street parties, beach parties, etc, with it. Saltwater, beers, dust, sand, falling on the ground, etc, nothing broke or deteriorated it the slightest, and I am a pro for breaking anything technological."
"will last you forever as they are absolute tanks"
"amazed how the quality resembles logitech g pro 1"
117
14
"If you want portable that you can take outdoors and get wet, check out the Bose Soundlink Max and Soundlink Flex. I have the flex and take it paddleboarding and camping and love it! Bonus: it floats!"
"they are by far the loudest small size speakers"
"The 4 sounds phenomenal given it's size - if I put it next to my hifi speakers you wouldn't realise that the sound was coming from that little cylinder rather than the hifi"
27
4
"Also, you can get a 2nd one and play them in stereo. ... I am not exaggerating: if I got another, I could put them on either side of my tv and that would be my home theater."
"you can link two of them to run in stereo which sounds way better and louder than a single speaker"
"I liked mine so much that I bought a second one to pair with my original. They're pretty stupendous! ... so you can afford to buy two and pair them up. They're damned detailed, go loud, and a pair really opens up the soundstage."
26
2
"I use it on a construction site clipped on to my tool belt so it’s pretty much perfect"
"I'm currently using them on a sailboat (Ericson 30+), and they sound great in the cabin down below as well as up in the cockpit when I'm sailing offshore (Pacific) or in San Francisco Bay."
"Plus, it’s water resistant so I put it in the bathroom while I shower!"
Disliked most:
5
10
"It sucks that both the Flex 2 and the Home are mono speakers. ... It's ridiculous to charge these prices and not even having stereo."
"the mono audio is really obvious. ... JBL doesn’t do as good of a job however."
"Yeah, I got in on that deal too. I bought two, in the hopes that the "audio link" feature could make them work in proper stereo. However, that wasn't the case, so I returned one set. ... Audio link works, but it simply duplicates the mono audio to each speaker. I was hoping it could be setup somehow for proper stereo mode, where one is the left speaker, and one is the right speaker."
2
10
"Avoid the Bose Flex Gen 2 and Bose Max. They have parisitic battery drain of 10-20% per week. ... These Bose will be dead in 2 months after a full charge. ... The units I have are brand new and no firmware update, because the previous returns had the new firmware updated and the drain was even worse. ... This is about as scientific as you can make it. Test every 7 days from 100% and watch it deplete to unuseable in 2 months. ... There's a huge thread about this subject from many Bose customers. Bose knows about it. Acknowledges it. Does NOTHING about it except offer you an exchange. ... Never seen anything like this in other BT brands. I have an old Sony BT speaker that I haven't touched in 2 years and can still play music!"
"The Bose Flex has a standby battery drain issue. It'll eat 30% a week"
"The battery drains 25% per week while turned OFF!"
14
14
"Levoit Core 300 was decent on specs, but it hummed just enough to wake the youngest every other night."
"cant hear the damn thing unless its at max volume, which kills my battery in like 3.5hrs."
"The Bose is just better. It gets louder, stays clearer at high volume, produces more and clearer bass, and sounds more detailed and refined across the board."
7
150
"The battery life is a literal joke. ... Do an activity? There goes 75% of your battery."
"after having it die on a couple seven mile/1.5 hour runs WITH the battery freshly charged and battery saving options on"
"I had a full charge on my AWU2 before bed last night, went for a 2h hike this morning (using a third party app called Footpath because the built in Workouts app is garbage for hiking), and I'm at 44% battery at this moment at 1:22pm in the afternoon. ... If you start using GPS, it's like 4-6h. ... I hate micromanaging my watch. This is the last AW one I own for sure. ... I’m sorry, but I 100% don’t believe you’re getting 42h while tracking 2h GPS activities on your AWU2 without severely affecting functionality (battery saver, turning off AOD, etc)."
5
1
"I tried the Bose sound link flex gen 2 with USB aptX adaptive I could still see the video was out of sync."
Agreeable_Bill9750 1.0Why only 3 options? I'm a fan of the bose flex 2 currently. Its very portable, its durable, has good bass, gets loud and you can link two of them to run in stereo which sounds way better and louder than a single speaker.
AlfalfaFamous3420 1.0Uboom X, it now on sale for only 92 dolar. Its a great speaker. Especially for this price. If you like deep bass, good mids and highs this is a great pick. Fast charging trough ucb c. Powerbank for your phone. Great eq possibilities. Loud sound with deep bass. Ip67. Pair it till 50 speakers. Aux in. The bose soundlink flex 2 is a great speaker. Portable, good deep sound. It will sound a lot bigger than it is. Ip67. Usb c charging. Great build quality. 3 band eq trough the bose app. Durable rock solid design. Fantastic color options.
Bose soundlink flex 2 has great bass for on the go. Especially for it's size. If you play with the eq in the bose app and put it in the corner. It sounds way bigger that it's size. Earfun Uboom X is also great. Its larger but almost the same price as the bose. The bass on it is fantastic. Devialet Mania is an wonderful sounding speaker. Big bass, great highs, and a big price haha 😉 Jbl flip 7 or charge 6 are great for outdoor usage.
amarevy97 1.0I love my bose SoundLink flex 2
Amazing-Stock-9412 1.0Bose Soundlink Max... I have the little Soundlink Flex 2 and it already sounds serious for its size... I can't imagine the Max...
Xiaomi Sound Pocket is a bit amazing (for my scooter 🛴) Bose SoundLink Flex 2 also, for a small house 🏠 I'm happy with both, excellent sound 🙀🤗👍
Very happy with the UE Boom 2 for 10 years but replaced by the Bose SoundLink Flex 2 which delivers very pleasant sound (if you lower the bass a notch with the 3-band equalizer) and a small Xiaomi Sound Pocket 5w for less than €20, very satisfactory for my electric scooter 🛴
I find it hard to say bad things about one or the other. I've always liked the neutrality, spaciousness and lack of distortion of the UE Boom 2. The Bose SoundLink Flex is characterized by a very rich sound, including the bass (which in my opinion should be lowered a notch in the equalizer as already mentioned in a previous comment). Still, listening to Pink Floyd's "The Wall" on it for example is pure joy, even at high volume...It almost feels like you have hi-fi speakers in the room, it's very impressive compared to the size of the speaker. Its main fault is its very weak autonomy, we end up using it almost always plugged in but what a sound! Very pleasant (but the EU was far from unpleasant but only more neutral, therefore less flattering) That's basically my opinion 🤗
Any-Demand-4687 1.0The Chinese speaker has strong bass, but it becomes annoying over long listening sessions. Overall, the JBL Flip 6 is worth a try. If I were to recommend one, go for the Bose Flex 2 – its bass sounds more authentic.
asjad878 1.0Bro motion 300 doesn't come close to Flip 6 in the terms of clarity, instrument separation and bass, but still jbl is a little bit harsh. My first Bluetooth speaker was tribit stormbox micro 2, a bit smaller than average portable speakers and I love it's sound profile it was best to my ears. Later on I tried tribit sound plus, JBL flip 6, motion 300, and currently I'm having Bose SoundLink flex Gen 2. Bose is not everyone it doesn't have a bright sound. And the soundstage is narrow but still somehow it's favorite to Many. I didn't try tribit stormbox flow but I heard it has same sound profile as tribit stormbox micro 2. Tribit sound plus is also called audiophile level speaker so you can try sound plus 2. Motion 300 bass some time so bad that unbearable.
Available-Cicada-282 1.0Bose soundlink Flex 2 or the Marshall Emberton 2 I guess! Amazing sound, and experience!
bigtwisteronjupiter 1.0The box flex is the model I’ve been eyeing hard. I really like the Bose tuning and own a pair of QC. If and when the UE kick the bucket, I’ll probably the flex 💪 How would you describe the sound profile between the boom 2 and flex 2 ?
btcguardian 1.0Newer version actually does sound better. It has better midrange and treble. Plus you the new one has EQ
bunihe 1.0If you would trust the frequency response graph so much, what about the +6dB crest at 150Hz and -6dB troughs at 100 and 80Hz, and the bass roll-off below 62Hz? I'm measuring from the brighter sloped blue line btw, to minimize the deltas, but +-6dB is a huge range, and that's before you accommodate the THD+N. +3dB is double the loudness, +6dB is quadruple, and all these are very sudden changes thus quite perceivable to the human ear. This is definitely not THE best Bluetooth speaker by any stretch of the imagination.
You never specify a size, you only say Bluetooth speaker. Along these lines, JBL Boombox 3 should be in the comparison, and if you really mean THE BEST, an actual HiFi system that coincidentally has Bluetooth support is definitely better than the SoundLink Flex. Also, you seemed to be disregarding the role DSP plays in modern portable speakers. I've been making a few DIY speakers myself with the BP1048B2 DSP chip and it's ACP Workbench tool, and when you get this kind of control over signal processing, you can nearly compensate for all peaks and troughs on the frequency response graph digitally, but you can't make the drivers perform better on transient response or improve directionality performance for a specific use case. That's some of what's missing from you claiming about how good these speakers are by just referring to a frequency response graph. Again, I understand that you really like their performance from 500Hz and above, and I don't disagree with you, but we don't buy a portable Bluetooth speaker to use it just as the satellite speakers of a 2.1 system, not that you can do that with Bose anyway.
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