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Bose SoundLink Flex Review – When sound quality and consistency matter

Bose SoundLink Flex Review – Many have bought portable Bluetooth speakers because of its portability. Being able to listen to music together anywhere while working or partying sounds really good for lifting your spirits, right? But what if you can also get consistently excellent sound quality? Wouldn’t that be nicer?

That’s exactly what Bose SoundLink Flex does. It’s a portable Bluetooth speaker with a compact yet sturdy design, but at the same time, it has the sound quality you’d like to come from Bose.

While Bose is very popular with their active noise canceling headphones (check out my QC45, QC35 II, QC35 review), they also make portable speakers for different needs and situations. In 2017/2018, Bose SoundLink Micro (also check my review) appeared and it is a perfect speaker for outdoor activities like cycling, hiking or climbing. Its dimensions are quite small – hence the name “Micro”.

The SoundLink Flex is bigger and different. It’s still portable enough to carry around easily, but it’s more versatile and flexible. You can position the speaker anywhere or anyhow, and its built-in PositionIQ technology can automatically adjust to optimize sound. You can have it upright on a desk or cabinet at home, clip it to your backpack carabiner while on the go, and then stand upright while you work due to the compact space. The technology will automatically detect and ensure that you get the same consistent sound quality.

Obviously, whether or not you notice the difference depends on your level of listening to the sound. Even though you may notice it, Bose SoundLink Flex has powerful sound and the deep bass you love from Bose audio devices. If you need a speaker to energize your day and improve your mood at work, this is definitely the one. The first thing I noticed when I first turned it on and played a song was how satisfying the bass sounded.

Overall though, the sound is pretty crisp and well-balanced with a bit of bass kick, and manages to fill our small living room and kid’s room quite well. Although the Flex is larger than the Micro, it’s still a compact speaker. So you can’t really compare it to a bigger speaker like my Sonos PLAY:5 for example, or even a smaller (but bigger than the SoundLink Flex) portable speaker like the JBL Xtreme 3 that we often used here at home. The JBL is noticeably louder and more powerful sounding, but I like the balance and tone of the SoundLink Flex more.

Design-wise, the Bose SoundLink Flex has a silicone finish on the back that’s soft to the touch and comes in three different colors: black, smokey white and stone blue (which is my review unit here). It also has an IP67 rating, which means it’s also waterproof and dustproof.

In real world examples, that means it’s safe to take the SoundLink Flex to the beach (it’s even rust, corrosion and UV resistant), pool parties and even kayaking. I haven’t tried this myself, but the speaker can float on water, so if you’re kayaking and there’s an accident, the speaker won’t dive deep to the bottom. ‘ocean. It will float and your music will even continue to play.

All controls are located at the top of the speaker, including playback, volume and Bluetooth pairing.

As for connectivity, the speaker only supports Bluetooth at the moment and there is no AUX port to plug in a 3.5mm cable. Bose is probably trying to keep it simple and really focus on making it a wireless, portable, and rugged speaker. And it’s certainly simple enough to connect to the SoundLink Flex.

If you want, you can get another SoundLink Flex (or another Bose Bluetooth speaker) and pair them in party mode. A built-in microphone means you can also use the speakerphone for audio calls and conferences.

Bose SoundLink Flex review conclusion

Bose SoundLink Flex is a great portable Bluetooth speaker that has it all: rugged, compact design, excellent and well-balanced audio quality, powerful bass when needed, and also waterproof + dustproof.

It’s great to see that Bose isn’t just focusing on portability and ruggedness, but paying more attention to the quality and consistency of its sound output. The SoundLink Flex cares more about sound than just churning out as loud a volume as possible, and its unique PositionIQ technology means you’ll get great sound no matter where and how you place the speaker.

Bose SoundLink Flex is now available for purchase and retails for A$249.95. Also available on

Disclosure: A Bose SoundLink Flex review sample was provided for review

Bose SoundLink Flex review


Bose’s portable Bluetooth speaker that focuses more on sound quality and consistency, and it pays off


  • Portable and compact design
  • Well built, IP67, can float in water
  • Good sound quality, well balanced with punchy bass
  • Unique PositionIQ technology
  • USB-C for charging

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