on qualified purchases at our brands now thru 5/4/26.
Highlights
Charges your WHOOP while you're wearing it
24/7 data collection
5 days of use on a single charge
Waterproof
Shipping Information
Sale & Shipping Restrictions.
About This Item
Product Information
Get continuous data for days on a single charge with the waterproof* battery pack that’s designed to charge your WHOOP while you’re wearing it.
Do you have an FSA/HSA? Take advantage and save on your 12-month WHOOP membership. Just purchase the WHOOP 12-month subscription with your credit card and submit a reimbursement through your FSA/HSA provider.
WEAR YOUR WHOOP WHILE CHARGING:
Never miss a moment of data. This battery pack is designed to charge your WHOOP while you’re wearing it for truly 24/7 data collection
Provides up to 5 days of usage on a single charge
WATERPROOF:
Capture data continuously - even while in the shower
ADDITIONAL INFO:
*WHOOP 4.0 is IP68 dustproof and water-resistant up to 10 meters for 2 hours. WHOOP 4.0 Battery Pack is IP68 dustproof and water-resistant up to 1 meter for 2 hours
WHOOP 4.0 and membership not included. Purchase your WHOOP 4.0 and membership separately
I waited seven days for the arrival of the replacement battery and it only worked after first charge and now I have to wait another seven days for a replacement
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Roosje S
7 months ago
Works As Expected
This one gets 3 stars, because it doesn’t hold its charge like the new version of the new whoop does. So there was room for improvement 🙂.
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Luca S
8 months ago
Way Too Expensive
Seems very unfair to charge such a high price especially after the high subscription and product fees already in place. However the product is satisfactory with no issues.
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Mark F
8 months ago
An All Good Overall Review
Everything had been great with the whoop apart from having to charge the battery every 3 day’s roughly, where as on the details it’s says it’s a 14 day life
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Saoirse K
8 months ago
Battery Pack
Very good handy to have a second to keep in my bag
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Benjamim N
8 months ago
Unfortunately Needed
difficult to get along with just one battery for the 4.0 Used to have 1 at home and 1 in the car because I travel quite a lot. Now with 5.0 no need for 2 batteries anymore.
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Tony S
8 months ago
Simple Charging
Remarkable piece of kit. You hardly know that you are wearing it. Brilliant
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Rob H
8 months ago
Disaster 4.0
Not that great. Battery seems to die and lose power after a while. If I were you were I’d buy a few of these to keep it ready but who has that kind of money!!
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Adrian I
8 months ago
Battery Pack
Waterproof and easy to use. Great battery life too
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Thijs M
8 months ago
Disappointed In Whoop
Heart rate tracking is just not good enough for certain activities like the elliptical. Got a new Battery Pack and reset my bluetooth connection to no avail. The balance between branding and product development is off in this company.
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Ferry L
8 months ago
Way More Capacity Then Before
Love the upgrade to Whoop5 with the new battery pack as well. Ow you have power for days without need to plug in a charger as the Whoop goes for days without charging and the battery pack has more then one charge in it to load up. Loving it!
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Ahmed B
8 months ago
Battery
It’s one of the greatest thing is that you charge it while you using it.
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Jonathan S
8 months ago
Dont Bother Upgrading To The Peak Package.
The additional life age data is just regular data you have but regurgitated into a different format
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Johannes R
8 months ago
Ok, But Then Came Whoop 5...
I am very disappointed that Whoop doesn't care about sustainability and deliberately makes everything a millimeter smaller so that no accessories will fit. A real rip-off of long-standing customers. The old battery always had to be charged immediately before use because it no longer held its charge for several days. If I had known that the Whoop 5 was coming out in a few weeks, I would not have spent a lot of money on a new battery. Now I have a pile of electronic waste at home. Thank you very much. How can I in good conscience recommend a product like this to my friends? And the new battery already flashes red when you charge it and plug it in straight away. It's still enough for a full charge after a few days, but I'm curious to see how quickly that changes. The old battery lasted over two years.
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Henrik J
8 months ago
New 5.0
Got my new 5.0 and installed it in 5 min. Worked perfect. Gave my friend the old 4.0 with one year subscription. Now we are four guys in our Whoop group looking at eachothers data and having fun.