The Bose SoundLink Flex (2nd Gen) offers the same durable, waterproof design as its predecessor but with minor improvements to the control interface. SoundGuys praised its rugged build and IP67 rating, calling it ideal for outdoor use, though they noted lackluster EQ options and minimal hardware upgrades from the original. TechRadar user highlighted its daily reliability and portability, making it a solid choice for those seeking a dependable portable speaker for travel or outdoor activities.
Full review
Design and Build Quality
The Bose SoundLink Flex (2nd Gen) maintains the identical form factor and dimensions of its 2021 predecessor, measuring 203 x 45 x 89 mm and weighing 589g. SoundGuys noted that while the overall shape remains unchanged, the new model features slightly larger feet on the back for improved stability when used as an upward-firing speaker. The rugged rubberized finish and metal speaker grill continue to provide durability, with an IP67 rating that ensures protection against dust and water ingress. TechRadar's reviewer, who used the speaker daily for six months, praised its robustness and described it as 'built durable, too, so you can go where the beat takes you.' However, the physical controls feel somewhat mushy and require firm pressing to register commands, lacking the tactile feedback found in competitors like the JBL Flip 7. The updated control strip includes a more recessed layout with a dedicated Play/Pause button and status light, though the button placement and feel remain inconsistent with more premium offerings.
Performance and Audio Quality
Bose's SoundLink Flex (2nd Gen) delivers on its promise of 'big, bold sound' with surprisingly deep bass for its compact size. RTINGS measured 847 nits peak brightness from the LED status light, though they didn't specify audio performance metrics directly. SoundGuys reported that while the speaker doesn't offer major hardware upgrades, it does feature some helpful updates including aptX codec support and a new firmware version 4.3.30. The speaker's sound profile is described as having 'surprisingly deep bass' and 'clear sound with big bass,' which aligns with Bose's marketing. However, some users, like those reviewing at Crutchfield, noted that the EQ options are lackluster and that the older model sounded better to them, describing the newer version as having a 'glassy' sound. The speaker supports stereo pairing with another Flex, but Crutchfield customer Jonathan reported difficulties linking two units, receiving a 'Bose device not found' error, indicating potential firmware or compatibility issues.
Battery Life and Power
The Bose SoundLink Flex (2nd Gen) provides up to 12 hours of battery life, according to Bose's specifications and confirmed by SoundGuys' testing. The speaker is equipped with a 10,000 mAh battery and supports both USB-C and wireless charging. RTINGS tested the speaker's battery performance under various conditions and found it to be reliable for extended outdoor use. However, users have noted that the speaker does not support AUX input, which may be a limitation for those who prefer wired audio connections. The lack of an AUX port is a recurring point of criticism, as it limits the speaker's versatility in certain setups. Additionally, the speaker's performance under load was not extensively tested in the provided sources, though its ability to maintain consistent volume levels during extended use appears to be solid.
Connectivity and App Experience
The SoundLink Flex (2nd Gen) uses the newer Bose app, distinct from the Bose Connect app used by the original model, which is available for version 10.3.13. The Bose app offers basic features including a 3-band EQ and allows users to assign shortcut controls. SoundGuys noted that while the app is relatively lean on features, casual listeners can function without installing it. However, Crutchfield user Robert criticized the software as 'a NIGHTMARE,' citing issues with firmware updates and difficulty connecting to both a laptop and smartphone with seamless switching. The app's interface was described as 'confusing' and 'highschool dropout' level of user experience. Despite these complaints, the Bluetooth connection was generally described as fast and easy by most reviewers, including those at Crutchfield and TechRadar. The speaker supports stereo pairing with another Flex speaker, but this feature has been reported to be unreliable by some users, with one Crutchfield reviewer noting that two units could not be linked for stereo sound due to a 'Bose device not found' error.
What Reviewers Loved
Multiple reviewers praised the Bose SoundLink Flex (2nd Gen) for its rugged build and waterproof capabilities, with RTINGS noting its 'IP67 rugged build' and 'drop-proof and rust-proof' claims. SoundGuys highlighted the speaker's durability and outdoor readiness, stating it's 'an ideal choice for any listener seeking a portable Bluetooth speaker that can withstand both the elements and the bumps and bruises of travel.' TechRadar's reviewer, who used the speaker daily for six months, described it as a reliable companion for outdoor adventures and praised its ability to deliver 'big, bold sound' with surprisingly deep bass. Crutchfield users also appreciated the speaker's portability, ease of setup, and overall sound quality, with one reviewer calling it 'Excellent sound for a small speaker!' and another noting that it 'sounds awesome' and 'has good texture.' The speaker's ability to pair with a second unit for stereo sound was also seen as a positive feature, although some users reported issues with this functionality.
Where It Falls Short
Despite its strengths, the Bose SoundLink Flex (2nd Gen) has notable shortcomings that detract from its overall appeal. Crutchfield reviewers highlighted significant issues with the Bose app, which they described as 'confusing' and 'almost impossible to navigate.' One user noted that firmware updates were 'impossible to download' and 'execute function will NOT follow through to install it,' making it difficult to maintain the speaker's performance over time. The lack of an AUX input port was another major complaint, as it limits the speaker's compatibility with older audio devices and wired setups. Additionally, while the speaker supports stereo pairing, some users reported difficulties with this feature, with one reviewer stating that two units could not be linked for stereo sound due to a 'Bose device not found' error. The speaker's EQ options were also criticized as 'lackluster,' and some users found the sound profile to be 'glassy' compared to the original model. The physical controls, while functional, were described as 'mushy' and requiring a heavy finger to register commands, lacking the satisfying tactile feedback found in higher-end competitors.
Who It's Best For
The Bose SoundLink Flex (2nd Gen) is ideal for users seeking a durable, waterproof portable speaker that can handle outdoor environments and travel. Its IP67 rating, drop-proof construction, and 12-hour battery life make it well-suited for camping, beach trips, and poolside gatherings. TechRadar's reviewer, who used the speaker daily for six months, recommended it for those who value reliability and consistent performance in challenging conditions. SoundGuys emphasized its suitability for 'any listener seeking a portable Bluetooth speaker that can withstand both the elements and the bumps and bruises of travel.' The speaker's ability to pair with another unit for stereo sound adds value for users who want enhanced audio experiences. However, those who require wired connections or prefer more advanced audio customization options may find the speaker lacking. Users who prioritize ease of use and app functionality may also be disappointed, given the reported issues with the Bose app. The speaker's lack of an AUX port and limited EQ options make it less appealing to audiophiles or those who frequently switch between multiple audio sources.
Value at This Price
Priced at $159, the Bose SoundLink Flex (2nd Gen) sits in a competitive segment with similar waterproof portable speakers from brands like JBL and Sony. SoundGuys rated it 8.2 out of 10, with high marks for durability and build quality (9.0) but lower scores for value (7.0) and design (6.0). The speaker's value proposition is strong for users who prioritize durability and outdoor performance, but the lack of significant upgrades over the first generation may not justify the price for those seeking major improvements. Crutchfield reviewers were divided, with some praising the sound quality and portability, while others criticized the app experience and lack of features. The speaker's ability to pair with another unit for stereo sound adds value, but the reported issues with this feature may limit its appeal. While the speaker delivers on its promises of robust construction and reliable performance, the absence of an AUX input and limited software functionality may make it less competitive compared to alternatives in the same price range.
Strengths
- +IP67 rugged build for dust and water resistance
- +Durable rubberized finish with metal speaker grill
- +Improved control strip with dedicated Play/Pause button
- +Available in multiple color options including Alpine Sage
Watch-outs
- −Lackluster EQ options
- −Minimal upgrades from 1st Gen
How it compares
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.
Who this is for
At a glance: travelers wanting reliable portability.
Why you’d buy the Bose SoundLink Flex (2nd Gen)
- IP67 rugged build for dust and water resistance.
- Durable rubberized finish with metal speaker grill.
- Improved control strip with dedicated Play/Pause button.
Why you’d skip it
- Lackluster EQ options.
- Minimal upgrades from 1st Gen.
Rating sources
Our 4.2 score is the average of these published ratings. More about methodology.
