The JBL Flip series is one of the most popular lines of Bluetooth speakers for a few reasons. For one, they’re usually not that expensive. In fact, I think every one of them has been priced at less than $100 brand new which isn’t bad at all. They also don’t sound bad and are now completely waterproof. So how much better can they make it without raising the price? We’re taking a look at their newest Flip 4 to find out.

Editor’s note: this review was updated June 7, 2019 to add comparisons, revise length.

What’s Inside

In the box you’ll get the speaker, a bright orange charging cable, and the instruction and warranty information.

Build & Design

At first glance, there isn’t much about the new Flip 4 that sets it apart from the previous Flip 3, and that’s because besides a few minor design changes like the phone button being turned into a more fitting triangle for pause or play, there really isn’t too much different between them. The Flip 4 is still cylindrical in shape with exposed passive bass radiators on either end. That said there is one key difference that makes this a worthy upgrade to the previous model – waterproofing.

The fabric that wraps around the speaker might look fairly similar to the previous model, but it’s actually completely waterproof now. It’s IPX7 waterproof to be exact, which along with being able to be submerged for 30 minutes in up to a meter of water, also means that’s sealed against dust, dirt, and sand. So taking this to the beach was no problem.

I was able to toss it around in the sand and in the water and then just wipe it off, throw it in my bag, and keep on moving. It’s probably not a huge deal for you if you have a Flip 3 and haven’t ever dropped it in water (or even had it near water for that matter), but it’s good knowing that whether you drop it in the pool or in the ocean you won’t have to replace the speaker.

On that note this speaker still doesn’t float like the UE Wonderboom we recently reviewed, so if you do accidentally drop it into a pool that thing is sinking to the bottom. And if you’re in the ocean just kiss it goodbye. But besides that the rest of the speaker hasn’t changed much. You’ll still get the four playback control buttons along the side of the speaker, and the power button and JBL Connect+ along the spine.

That’s also where you’ll get the five indicator lights that show you how much battery life is left along with a small flap to keep water out of the micro USB charging input and the 3.5mm input hidden underneath. The string is also still there so you can hang it from a hook or tie it to your bag if you want. Though I prefer the flexible cord you’ll find on something like the UE Roll, the string here is fine.


Let’s circle back to that JBL Connect+ plus button for a second because this is one of my biggest complaints with this speaker. If you remember the Flip 3 also had a JBL Connect button, but this one is Connect+ and that extra plus sign makes a huge difference. While the old one could only connect two JBL speakers together, this new Connect+ button can connect up to 100. Pretty great, until you realize that you can’t connect to any previous speaker that doesn’t have Connect+.

So if you have another speaker and were hoping to connect the Flip 4 to it you’re out of luck. This is a real bummer because the Flip series isn’t so expensive that it’s impossible to imagine someone buying one every time a new one comes out, and now they can’t even connect them together. Supposedly this is going to be fixed in an update but I don’t think it should have been overlooked in the first place.

Okay rant over. Besides that, I’ve had no issues with the connection aspect of this speaker. The signal stayed strong regardless of where I was in the house, which practically means about 50 feet with a few walls in the way and the playback controls also work very well and give you plenty of control.

You can control volume with the plus and minus sign buttons, pause/play music or access your phone’s personal assistant with the play button, skip to the next song by double tapping the triangular play button, and easily enter Bluetooth pairing mode with a dedicated button. All of this works perfectly and I had no complaints, though I do wish I was able to return to a previous track by triple clicking. That’s always helpful to me since I like to listen to the same songs over and over again during testing.

Battery Life

JBL claims a battery life of about 12 hours, but in our initial testing, we got exactly 4 hours on max volume. Yeah, big difference. But the reason is because I feel like most people using a waterproof Bluetooth speaker is going to be using it outdoors, where it’s probably going to be on max volume. So that’s how I test it.

However, when I lower the volume to between 50-75% it reaches 12 hours easily. So that’s something to keep in mind if you think you’re going to be out somewhere like the beach. For a few hours you won’t have a problem, but if you’re planning a day trip or a day by the pool you might want to avoid high output or the speaker isn’t going to make it.

Sound Quality

If you were looking for the Flip 4 to be a huge improvement in terms of sound quality over the previous model, I’m sorry to disappoint. The Flip 4 sounds very similar to the previous model. Now that isn’t a knock against the Flip 4 in any way because I really liked the sound of the Flip 3. There are only a few subtle differences here as far as I can tell, one of them being in the highs.

On the Flip 3, I found a slight distortion when the speaker was maxed out but that doesn’t seem to be an issue on this new model. The finger slides that used to sound a little harsh in Cinder And Smoke by Iron & Wine is now much more controlled. You can still enjoy it without it bothering your ears which is a plus.

Not much has changed in the mids, with vocals still coming through loud and clear. Background instruments do get pushed off the side a bit but not enough to be an issue. The guitar and percussion in Life is Wonderful by Jason Mraz backs up the vocals perfectly throughout the track.

Another minor change is in the low end, with a slightly beefier bass when compared to the previous model. It’s still not going to replicate the “sub-bass” of your favorite songs but it doesn’t do a bad job at replicating it at a slightly higher frequency it seems. The rolling bass of Mr. Rager by Kid Cudi is consistent throughout the background of the song without muddying up any of the mids.

What you should know

IP ratings

One of the biggest new features of the Flip 4 over its predecessor was the addition of an IPX7 waterproof build. The JBL Flip 3 was only splash-resistant, but that might not mean much to you if you don’t know what the differences between the two are. We have a full explainer piece so you can read up all about it to become an expert, but we also put together this chart for you to hopefully make this clear. Basically, water resistance comes down to the last digit in the series. As you can see from the chart, an IPX7 build means that the product has been tested for up to 30 minutes submerged in 1m of water.

 Water-resistantWaterproofCan withstand
IPX0Not water-resistant
IPX1Dripping water (1 mm/min)
Limit: vertical drips only
IPX2Dripping water (3 mm/min)
Limit: Device max tilt of 15° from drips
Limit: Device max tilt of 60° from sprays
IPX4Splashes, omnidirectional
IPX5Water jets (12.5 L/min)
Example: Squirt guns
IPX6Strong water jets (100 L/min)
Example: Powerful water guns
IPX7Complete submersion
Limit: 1 m. for 30 min
IPX8Complete submersion
Limit: 3 m. for 30 min

Bluetooth quality and codecs

The JBL Flip 4 does have a 3.5mm input if you want to hardwire in a source device, but most people will probably be connecting to it over Bluetooth. The good news is that the JBL Flip 4 does have Bluetooth 4.2, the bad news is that it doesn’t have any support for high-quality codecs. If you don’t know what a codec is, don’t worry we’ve got you covered there too. In layman’s terms, a codec is like a language.

SBC aptX aptX HD AAC LDAC bluetooth codecs profile audio

Represented is the max transfer rate (kbps) of each respective Bluetooth codec (greater is better). Each waveform depicts a transfer rate of 100 kbps.

If two devices share the same language ( or codec) they can transfer data between each other faster. Unfortunately, the JBL Flip 4 doesn’t have any special codecs and just uses the default codec (or language) that all devices speak with is SBC. But don’t worry, it really doesn’t matter in this case because this speaker is meant to be tossed around and taken with you wherever you go, not for high-quality listening. Besides, you probably can’t hear it anyway.



You can find the Flip 4 now for around $80, so is it worth it? Absolutely. If you already have a Flip 3 then you’ll have to figure out if being able to completely submerge your speaker is worth getting another. If it isn’t then you really don’t need this. But if you’re shopping for your first waterproof Bluetooth speaker and don’t want to spend a ton of money, there hasn’t been a better time do so. JBL just keeps marching forward with better and better products every time, and the Flip 4 is the next step for them.

If you’re still not sure this is the right speaker for you, we have an entire list of waterproof Bluetooth speakers you can check out, as well as a few similar option you can choose from down below. If you’re just not ready to commit to something this expensive, give the JBL Clip 3 a try: It’s not as good, but then again, it’s also much cheaper.

Some alternatives

If you’re checking out this review to decide if you want to get a JBL Flip 4 and find that it’s just not for you, don’t worry because there are plenty of other options you can choose from. Here are a few more speakers you might be interested in.

  • Anker Soundcore Flare: Anker consistently surprises with how good their products are for the price you pay, and the Soundcore Flare is a perfect example of this. You’ll get pretty decent sound and battery life in a small package that looks nice and also has LED lights. If you want a waterproof speaker, you can’t go wrong with this. Full Review
  • UE Wonderboom: The Wonderboom is one of our favorite waterproof speakers for one main reason: it floats. A waterproof speaker is great, but chances are it’s only going to end up submerged if you drop it into the water. What good is waterproofing if the speaker sinks to the bottom of a lake? If you don’t want to lose your speaker to Davy Jones’ locker, give this one a chance. Full review
  • UE Roll 2: While the Roll 2 doesn’t float, it’s still a great option for anyone that needs a waterproof speaker for outdoor activities thanks to its bungee cord. You can wrap it around anything and let it hang or just leave it dangling from your pack on a hike. Full review
  • Braven Strude 360: The Braven Stryde 360 doesn’t have the same premium aesthetic of the UE speakers or even the JBL Flip 4, but it’s also less expensive and just as durable thanks to a hard plastic casing that can take a ding or two and live to tell the tale. Full review
  • Bose SoundLink Micro: Bose has a decent option for basically every category in audio, and affordable waterproof speakers are no exception. The sound quality won’t blow you away, but if you want a small and portable speaker definitely check out the SoundLink Micro. Full review

But wait! What about the JBL Flip 5?

If you’re wondering whether you should get the Flip 4 now or just wait for JBL to release the Flip 5 then this section is for you. First of all, let me say that we have absolutely no idea when the JBL Flip 5 will be announced, or even if it will be announced. That said, considering that JBL Flip series is super popular and the company has released a new one at every CES for the last few years, we’re willing to bet that we’ll see a new one at CES 2019 in January.

So if you want to replace a broken cheap waterproof Bluetooth speaker or are looking to get one for the first time, you should probably just get the Flip 4. Chances are the Flip 5 will be better, but not drastically better that it’ll make the Flip 4 irrelevant. The Flip 4 still a great speaker. That said if you have an older Bluetooth speaker that’s still functioning or even a Flip 3, it doesn’t make sense to spend the money now when you can wait a month or two for the newer model (assuming it comes out). Whenever it’s release we’ll be sure to get our hands on it for a full review.

Buy Now

JBL Flip 4
JBL Flip 4 is the next generation in the Flip series; it is a portable Bluetooth speaker that delivers surprisingly powerful stereo sound. This compact speaker is powered by a 3000mAh rechargeable Li-ion battery that offers 12 hours of continuous, high-quality audio playtime. Sporting durable, waterproof fabric materials that are available in 6 vibrant colors, Flip 4 is the all purpose, all weather companion that takes the party everywhere. It also features a built-in noise and echo cancelling speakerphone for crystal clear conference calls, and JBL Connect+ technology that can wirelessly links more than 100 JBL Connect+ enabled speakers together to amplify the listening experience. With a simple button press, you can activate and talk to Siri or Google Now from your JBL Flip 4.