Tech Specs

Interval Key Features

Made for Apple Watch: Compatible with ALL Apple Watch Sizes and Series.

Developed for Swimmers: Integrated goggle loops make it easy to attach and remove the case from almost any swim goggle. Short headphone wires make it convenient to contain your personal sound system entirely on your head, keeping your arms free of wires.

The Interval features bass amplified Surge headphones. Ergonomic sheared shape sits flush with the ear and is designed to promote proper alignment of the earbud with the ear canal for superior sound and fit, plus and less drag in the water.

100% Waterproof

Submersible to 12'/3.6m underwater. Waterproof Rating: IPX8.

Bass Amplified Sound

The latest waterproof acoustics technology delivers improved bass quality, while sound-isolating, watertight earplugs provide warm sound and dynamic bass response powered by Surge’s waterproof neodymium drivers.

Personalized Fit
Snug Fit

Includes five sets of Elastomer earplugs (XS-XL) and one set of “Tree Tip” earplugs. Find the size that’s right for you to ensure headphones stay securely in place while swimming.

Music Play Time
MP3

Interval has a rechargeable battery that allows over 6h play time.

Bluetooth 5.0
Bluetooth

Interval connects to the Apple Watch directly via Bluetooth. Simply pair from your Apple Watch. No phone needed.

  • 5 stars: 113 (80%)
  • 4 stars: 26 (18%)
  • 3 stars: 2 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Silvia Bianconcini
Fantastic!

Fantastic!

i
ibrahim jouni
I hoped the sound would be louder

I hoped the sound would be louder, still a good experience, connection is perfect, comfortable to wear

S
Steven Stoller
Swim Longer

I used to swim 20 laps then stop over boredom. With the interval I can swim while listening to music or a podcast. Now I’m motivated and swim a mile instead of 20 laps

K
Katarina Nastos
Nice to be able to run playlists from Spotify

In comparison to Open Shook swim pro it is easier to get music into unit for swimming. You just create a playlist in Spotify and load it to your watch while charging it. Then music is there. You have to make sure to turn off bluetooth on your phone to be able to play music from watch.

You can not use apples training app, it will auto pause since watch is not mounted on wrist. You have to use the app they recommend,. It is OK, you can pause and start by shaking your head. However, in comparison to apple training app you do not get SWOLF-measurement e t c.

Ups and downs ergo.

Sound is better than on shook open swim pro since interval H20 is in ear. Also great not having to use something else to block water from entering your ears.

G
Gerry Robertson
Swim with music

I have bought several different products from H2O. I swim long distance and before music my swims would be very boring. Now I just plug my watch in and swim for hours. I have never had a problem with any of their tech. Very relatable. Their customer service is also top notch. I highly recommend all their products. Thank you

A
Amanda Meir
Impressive

Online chat used and really good, prompt and efficient. App download to Apple Watch and connection without complication. Solid unit that stays put on my goggles and no worries about the the watch coming out the using or it falling off my goggles. Earbuds get coming out the first time used, but changed the size and no issues so far. The sound is good and easy to use the buttons in use. Set the music to start playing when my swim workout begins, perfect…

D
Denise Hart

Easy to set up and use, very happy with this product

R
Robert E Easton
Great Product Great Customer Service

I'm really impressed with the Interval for Apple Watch. Very easy setup, pairing was a breeze. It's awesome to be able to listen to music while I swim. Customer service has been outstanding. Very friendly and professional. Great company to work with.

G
Greg Mercer
Headphones

Great sound when swimming I wish it would warm me of low battery

J
John Montgomery
Works great, easy to use.

It works very well! Wasn’t set up and use. Lots of choices for ear pads. Such a changer to swim with music!
With music!

E
Earl S. McDaniel Jr
Listening while swiming

I use this device every day. I swim (very slow) everyday for 100 min and this allowed me to do audio books in this device. I would be bored if I didn’t have this or music.

Y
Yan Reznik
Love ut

Love it. Using daily

D
Dorra Duensing
Love my H2O headphones!!!

My Apple Watch compatible H2O swim headphones (bone conduction) are great for my distance swim workouts. This is my second one. The first one lasted just over a year before the left headphone went bad. But I was given a discount to purchase a new one. We will see how long it lasts. But I really love it! I can set the intervals for timing feedback and listen to music. It can be slightly off sometimes and it occasionally will miss time and I haven’t figured out why. But most of the time it works very well and my swim workouts are recorded and are comparable so the data is useful feedback. It makes swims workouts fun and enjoyable!!!!

c
cindy belperio
Swim with music

My only issue with the interval is it doesn’t last very long always seems after a couple a months it loses the connection. I think the wires should be thicker that connects to headphones

S
Sandy Scott
Thank god for music

It stays in place on my googles. I can’t swim 2,000 yards in a pool without music. Was easy to pair. Apple Watch holds well in place. I have already recommended it. You can listen to anything from your watch. Spotify, iTunes, audiobooks, downloads

C
Con Psarras
So far so good, mostly

A very clever and innovative product. With some tinkering, listening to downloads offline on Pandora, etc. is pretty simple. Apple Music a bit more of a headache. Would give five stars except for two things: 1) None of the earpiece options seem to fit me well and, 2), the app that is intended to measure laps, time, etc., is balky and generally not accurate in my experience.

m
michael sayles

I had to replace my last one because the left earbud stopped working

A
Andre sandor
No success.

Not successful so far. I could not connect my apple watch thst has a grest deal of music supposedly downloaded from Apple Music onto it.
I am also worried about this device coming off from the goggle strap and sinking to the bottom of the pool.

J
J.L.
Excellent product

Easy to use. Downloads quick from iphone. Durable

J
Johnny Wagener
Interval for Apple Watch - great product

Simple to use, Bluetooth syncs straight away, headphone wires are the perfect length, big easy buttons. This is a really well thought-out product, exactly what I was looking for to listen to music while swimming.
My only slight concern is that the 2 connectors holding the wires on either side are thin- I hope they can stand the test of time because I’m really enjoying using the interval.
If you own an apple watch and want to listen to audio while swimming the interval is brilliant.

L
Lisa Wilkins
Highly recommended

I really enjoy my headphones. I use them about 4x’s a week and have 2 sets. They really help to break up the monotony of back & forth staring at the tile below. I’ve had my original one ( that has the little rubber closure on the back) for around 3+ years. I only recently upgraded to the magnetic charging set because of the great sale. I use them not only in the pool but, the hydro pool & sauna. I’ve recommended many times to fellow swimmers. I’ve only had one incident where my watch came out and luckily an awesome young man dove down 20ft and retrieved it.

G
Gail Desjardins
Apple Watch with interval

Still having problems with watch and Spotify on unit

G
Gail Desjardins
Apple Watch with interval

Still having problems with watch and Spotify on unit

J
Jill Low
Not yet

I’m having trouble connecting Apple Watch to iPhone right now. I’m sure after I do I will enjoy the product.

E
Ethan Magid
BC better than in-ear

After having to return the in-ear version because the sound quality was terrible, I’m happy to say that the bone conductor version of the headphones work really well. They clip on and stay in place (which is what I was worried about) and the sound quality is great so long as you’re wearing ear plugs. The return process for the in-ear version wasn’t entirely straightforward but they got it sorted in the end.

C
Cameron Robinson
Bone conduction ideal for swimming.

Sound quality is excellent.

j
jill esrock
Interval

I love my H2O Interval. On my daily swim I listen to Audible books and can hear clearly. I can't wait until my next swim to listen to my book. Customer Service has been wonderful.

D
David Horton
H20 interval

Excellent. Works really well

B
Barry Behrstock
Can again listen to books on tape

So far so good rubber bands seem subject to drying and breaking over time

R
Ronald Carter
Just Works

The Swim Headphones work perfectly! The new charging system is sooo much better! If you sim breast stroke or back stroke, you do not even need an Apple watch--the iPhone works just fine! Just wear the headset on your fore

A
Andrew Balaity
Eat swim head phones I’ve owned, by far.

Preferred design.

S
Steven Stoller
Making swimming fun again

I have been using the Interval Swim Headphones for the Apple iWatch for several years now. I had to recently replace it with the newer model. It may not be 💯 % accurate however I went from swimming 20 laps to swimming over a mile.Listening to a playlist while the app tracks the distance and time keeps me motivated. Getting older I am transitioning to more low impact activities to reduce stress on my joints. This has made it easier.