Bose SoundLink Flex (2nd Gen) Review: Rugged but Pricey?

This Bose SoundLink Flex Portable Speaker (2nd Gen) review looks at a compact Bluetooth speaker built for people who take their music outdoors, on trips and into wet places. It is aimed at travelers and anyone who wants a rugged, compact speaker with balanced sound rather than maximum volume. It is mid-range within the group of speakers we compared, though reviewers call it pricey versus rivals, so the question is whether its mix of toughness and tuning justifies the cost.

This review is based on Bose's published specifications and on what independent expert reviews report. It is not based on hands-on testing.

What the SoundLink Flex 2nd Gen is

The SoundLink Flex 2nd Gen is a single-speaker Bluetooth unit. Bose pitches it as big, bold sound with deep bass from a packable size. It has Bluetooth 5.3, a built-in microphone for speakerphone calls, and an IP67 dust and water rating. A silicone-wrapped body and a nylon utility loop show that it is meant to be carried around and clipped to a bag, not left on a shelf.

Experts rate it well overall. It averages 7.8/10 across 5 expert reviews. Android Police gives it 8.5/10, MakeUseOf 8/10 and SoundGuys 7.4/10. Tom's Guide scores it 4/5 and TechGearLab 72/100. That is a solid but not glowing spread, and the criticisms reviewers raise are worth understanding before you buy.

Design and build

The body is wrapped in silicone, which Bose says resists drops, shocks and rust. Together with the IP67 rating, that makes it a speaker you don't need to baby. IP67 means it is sealed against dust and can handle immersion in water. It also floats, which helps at a pool, a lake or a boat dock if it slips off a towel.

It weighs 1.291 pounds and measures 2.06" H x 7.93" W x 3.56" D. The nylon utility loop gives you a way to clip it to a bag. It comes in eight colors: Black, Blue Dusk, Sandstone, Alpine Sage, Twilight Blue, Petal Pink, Citrus Yellow and Fog Grey.

The IP67 rating and the silicone-wrapped body that resists drops, shocks and rust are listed among the speaker's strengths.

Features and what they mean day to day

PositionIQ

PositionIQ senses the speaker's orientation and tunes the audio to match.

The Bose app and shortcut button

The Bose app gives you EQ control and a customizable shortcut button. The app's EQ and customizable shortcut button are listed among the speaker's strengths.

Pairing two speakers

Two identical speakers can pair in Stereo Mode or Party Mode. You do need two identical speakers, so this is a plan-ahead feature.

Multipoint and calls

Multipoint support covers two source devices. That lets you keep two source devices connected at once. The built-in microphone allows speakerphone calls.

Sound, battery and connectivity

Sound

The consistent expert praise is for clean, balanced sound with strong bass for such a small speaker. That fits Bose's pitch of big, bold sound with deep bass from a packable size. It is a single speaker, so don't expect wide stereo separation from one unit. Pairing a second speaker in Stereo Mode is the way to get that.

The frequent criticism is at the other end of the volume dial. Reviewers say the sound can turn harsh or compressed at top volume. If you plan to use it as a party speaker in a large open space, this is a real consideration. The Flex is aimed at travelers wanting a rugged, compact speaker with balanced sound, rather than at maximum volume.

Battery life

Bose lists 12 hours at moderate volume, with less at maximum volume. Reviewers call out that battery life tops out there. It is not a speaker to take on a multi-day trip without a way to recharge. Charging takes 4 hours with a 1.5A USB power supply, so overnight charging is the practical approach.

Connectivity and ports

Bluetooth 5.3 gives a range of up to 33 feet (10 meters). The charging port is USB-C, but it is charge-in only. That means you can't use the speaker as a power bank for your phone. There is also no aux input, so it only works wirelessly. If you want to plug in a wired source, this is not the right speaker.

What experts like and what they criticise

The praise falls into a few clear areas:

• Reviewers like the clean, balanced sound and strong bass relative to the speaker's size.
• The IP67 dust and waterproof rating, plus the fact it floats, is a regular highlight.
• The silicone-wrapped body that resists drops, shocks and rust gets credit for durability.
• The Bose app, with its EQ and customizable shortcut button, adds control.
• Stereo and Party Mode pairing gives a way to expand the system.

The criticisms are just as consistent:

• Battery life tops out at 12 hours, and drops further at maximum volume.
• Sound can turn harsh or compressed when pushed to top volume.
• There is no aux input, and the USB-C port is charge-in only.
• Experts see few upgrades over the 1st Gen, and consider it pricey versus rivals.

The last point matters most to existing owners. If you already have the first-generation Flex, reviewers don't see a strong reason to upgrade. For a first-time buyer, the lack of a big step forward matters less, but the value question still applies.

Who should buy it

The SoundLink Flex 2nd Gen suits travelers who want a rugged, compact speaker with balanced sound. It also works for anyone who spends time near water, since it is IP67-rated and floats. It is a good fit if you value a speaker that you can drop in a bag without worrying, and you want the option of EQ tweaks through an app. If you think you might want a stereo pair later, the Stereo Mode option adds flexibility.

Who should skip it

Skip it if you own the original Flex, since experts see few upgrades. Skip it if you need long battery life beyond 12 hours, or if you want a speaker that stays clean at very high volume. It is not for buyers who need an aux input, or who want to charge other devices from the speaker, since the USB-C port is charge-in only. If price is the main concern, reviewers note it is pricey against rivals, so a lower-cost model may serve you better.

How it fits in the portable speaker category

Portable Bluetooth speakers generally trade off size, battery life, loudness and durability. The Flex 2nd Gen puts its weight on durability, a compact shape and balanced tuning. Its battery tops out at 12 hours, and reviewers say the sound can turn harsh or compressed at top volume. That focus makes it a considered pick rather than an all-rounder. If you care most about ruggedness and sound quality at moderate volumes, it is easy to understand why it appeals. If you care most about sheer output or a long runtime, those are the areas where experts say it falls short.

Verdict

The Bose SoundLink Flex 2nd Gen does what it sets out to do: a tough, packable speaker with clean, balanced sound and strong bass for its size. The IP67 build, floating design, app-based EQ and two-speaker pairing give it a lot of practical appeal. The compromises are clear too: 12 hours of battery at best, sound that can turn harsh at top volume, no aux input and a charge-only USB-C port. With a 7.8/10 average across 5 expert reviews, it is a good speaker with some real limits. Buy it if durability and balanced sound matter most. Look elsewhere if you need more battery, more volume or a lower price.

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