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Audio technology has advanced over the years. Not only have prices dropped on portable wireless Bluetooth speakers, but we've also seen an improvement in the quality of products. Regardless of the cost, the sound quality across the board is pretty darn good. True, some limitations might be set by the size of the speaker (typically an inferior bass quality), but the convenience offered by a portable speaker offsets these minor quibbles.

We'd have to say that a portable Bluetooth speaker is the best way to take your music with you anytime and anywhere you want. Not only can you stream your tunes from a phone, tablet or computer, but you can also use a small speaker as a speakerphone for calls or meetings where you actually want to tune in with that all-important Bluetooth connection.

We continue to review mini Bluetooth speakers at a steady clip here at CNET, so we update this list often. This buyer's guide offers a look at our current favorites, with a focus on small and lightweight models that are well-suited for travel and still have excellent sound output. We're also highlighting the models that produce great sound, have a solid battery life, and don't cost too much. If you're looking for the best portable Bluetooth speaker for you, read on.

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The JBL Bluetooth speaker that received the biggest improvements for 2021 is among the company's smallest. The JBL Go 3 has a completely new look -- it's now covered in durable fabric instead of having the naked plastic design of its Go predecessors -- and that new design, coupled with surprisingly decent sound for its small size, makes the Go 3 ($40, £35, AU$70) one of the top micro Bluetooth speakers out there.

Available in multiple color options, it has an IPX 67 water-resistance rating (it can be dunked in water and is dustproof). Battery life is rated at up to 5 hours.

Read more: The best Bluetooth wireless speaker for 2021

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Tribit's StormBox Micro is one of the best sounding pocket-sized Bluetooth speakers I've tested, with bigger bass and volume than most other tiny speakers. It lists for $50 but often gets discounted to $40 or less.

Aside from its great design, Bose's SoundLink Micro stood out because it was able to deliver more bass than every Bluetooth speaker in its size class, and it also managed to have limited distortion at higher volumes. And it's the Tribit's bass and overall volume level for its tiny size that allows it to stand out. 

It's IP67 dustproof and water-resistant (it can be fully submerged in shallow water for a short time) and has up to eight hours of battery life at moderate volume levels with USB-C charging. Like the Bose, this portable Bluetooth speaker has an integrated strap so you can clip it to your backpack or bike's handlebars. 

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Bose SoundLink Micro is arguably the best-sounding speaker for its tiny size. Although this Bose SoundLink is a little pricey, Bose did shave $10 off its list price, bringing it down to $99 and sometimes it's discounted to $79. It's a fully waterproof Bluetooth speaker and available in three Bose SoundLink color options.

Read our Bose SoundLink Micro review.

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Anker's Soundcore Motion Plus came out in 2019 and managed to slip beneath my radar, which is a shame because it's arguably one of the best-sounding speakers under $100, if not the best. A little larger than many mini Bluetooth speakers, it's still compact and manages to sound quite a bit fuller than much of the competition under $100, with bigger bass, more volume and better clarity. It's also fully waterproof (IPX7 rated) and has support for the aptX streaming codec for devices like Samsung's Galaxy phones that support it.

Read our Anker Soundcore Motion Plus review.

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With its new canister-like design, perfectly sized to fit in a chair cup holder, Sony has created a portable Bluetooth speaker that has a design you're probably familiar with from popular speakers like the UE Boom and JBL Flip, which have been upgraded over the years with improved bass and battery life. 

An Extra Bass model, the SRS-XB23 definitely has a warmer sound. It delivers better sound with more bass and volume than many of the cheaper generic Bluetooth speakers you can find on Amazon in the $40-$70 range on Amazon. It's also a sleeker looking Bluetooth speaker that's available in five different color options: black, taupe, coral red, light blue and olive green. Some colors are available for less.

Equipped with two new full-range drivers and passive bass radiator, it delivers 12 hours of battery life at moderate volume levels and is waterproof, dustproof, rustproof and shockproof with an IP67 rating. It has USB-C charging and can connect with up to 100 other Sony speakers using Sony's Party Connect feature.

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For its first three generations, JBL's Clip micro Bluetooth speaker had a circular design. But for the fourth-gen Clip 4, JBL has moved to a more oval shape, bulked up the speaker slightly and added USB-C charging. It does seem more durable, with a sturdier integrated carabiner "clip." Also, it sounds a little better, with more volume, clearer sound and more bass. With an IP67 water-resistance rating, it's not quite fully waterproof (the Clip 3 is), but it's now dustproof.

One of the best wireless Bluetooth speakers for its tiny speaker size, the Clip speaker sells for $70 but should come down in price a bit later in the year. The older Clip 3 is frequently discounted.

Read our review of JBL Clip 4.

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The Tribit MaxSound Plus is about 30% bigger than its sibling XSound Go and costs about $25 more, but it performs substantially better and is one of the best sounding speakers in its size and price class. It has a long-lasting rechargeable battery and superior audio quality for a Bluetooth speaker.

Read our Tribit MaxSound Plus review.

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JBL's Flip 5 ($100) is slightly bigger than the older Flip 4, which now costs around $80, with improved sound that features a little more bass. It has an IPX7 waterproof certification, which means this small speaker can be submerged in a meter of water for up to 30 minutes and survive. Tribit's StormBox is about $30 less and plays louder, but I like the tonal balance of the Flip 5 better. It also offers USB-C charging.

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Bang & Olufsen has upgraded its dome-shaped aluminum-clad A1 speaker with improved battery life, better speakerphone performance (it now has a three-microphone array) and slightly improved sound. It's not only the smallest wireless speaker from the Danish company, but also the most affordable at $249 (you can get certain colors for $225).

While the speaker drivers remain the same, the Qualcomm chipset that powers the speaker has been upgraded (the speaker uses Bluetooth 5.1), bumping the sound quality up a tad, particularly at higher volumes, with better digital signal processing. It remains one of the best-sounding mini Bluetooth speakers, with richer more tonally balanced sound than other Bluetooth speakers its size -- and it should sound good, considering its elevated price point.

It's also worth noting that the A1 has multipoint Bluetooth pairing so you can connect this to your PC and smartphone at the same time and easily switch back and forth between the two if a call comes in on your phone. Additionally, the speaker is Alexa-enabled, meaning you can activate Amazon's voice assistant by just saying "Alexa." 

Battery life is rated at up to 18 hours at 50% volume (the earlier A1 didn't live up to its battery life claims, but this number is more accurate) and if you can afford it, you can link two A1 speakers to create a stereo pair. The speaker is waterproof with an IPX 67 rating that allows it to be submerged briefly in shallow water.

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The Sony XB01 is a splashproof mini wireless speaker (that doesn't mean that it's a waterproof bluetooth speaker -- don't take this one in the shower or anything), and is available in multiple colors. And it offers great sound for the price. (It lists for $35 but is regularly discounted to less than $25 and sometimes even less than $20.)

Read our Sony SRS-XB01 review.

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We liked Ultimate Ears' original Wonderboom Bluetooth speaker, which sounded good for its compact size and was also waterproof. Now the company has released the Wonderboom 2, which is a touch bigger than the original and sounds slightly better, with more bass and a special Outdoor Boost mode that boosts treble.

Like its predecessor, the fully waterproof Wonderboom 2 is a compact speaker that carries a list price of $100 but often sells for less. What's different is the IP67 rating that means it's dustproof, more shock-resistant and also able to float. It also has 30% better battery life -- up to 13 hours at moderate volume levels, according to Ultimate Ears -- and you can link two together to create a stereo sound pairing by simply pressing a button on each speaker.

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At around $35, the Tribit XSound Go is one of the top speakers with Bluetooth connectivity for the money. Besides sounding decent, it's also fully waterproof. It also has excellent battery life -- up to 24 hours at 50% volume levels.

Read our Tribit XSound Go review.

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Tribit's StormBox speaker looks like a cross between a UE and a JBL speaker. We suspect that's not an accident. Fully waterproof, it costs about $30 less than the JBL Flip 5 and produces bigger sound and has up to 20 hours of battery life. Tribit's XSound speakers are probably a better value, but the Stormbox is more stylish. It also has a rechargeable li-ion battery able to power up to 20 hours of continuous playtime.

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1More is known for its well-priced in-ear headphones. But its first Bluetooth speaker is also quite decent. Its strength is its bass performance for a speaker this size. While this mini speaker doesn't have the clarity of the Flip 5 or UE Wonderboom, its bass has a bigger sound. It can be laid flat or hung vertically using a built-in lanyard. I preferred its sound when the speaker was facing me (not up). 

Full disclosure: This is the only product on this list we didn't test in person. But we found much to admire in its predecessor, the Oontz Angle Plus, back in 2017. This one has marginally better battery life, slightly bigger sound and is more water-resistant than the Plus, and it offers stereo pairing, too. We'll have a hands-on evaluation soon, but we're including it here based on our positive experience with the Plus and the enthusiastic 4,800-plus user reviews on Amazon, where it sells for $35 to $40. 

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