WHOOP 4.0 vs 5.0: Which Heritage Band Fits Your Device?
The WHOOP tracks everything, but it ships with a plain band. Most people who find us want the same thing: something on their wrist that carries more than a recovery score. WHOOP 4.0 and 5.0 MG use different clasp sizes, so this guide shows you which band fits your device and which one fits you.
Do WHOOP 4.0 bands fit the 5.0?
No. WHOOP 4.0 and 5.0 bands are not interchangeable. The 5.0 and 5.0 MG use a wider clasp housing than the 4.0, so a 4.0 band will not sit flush on a 5.0 device, and a 5.0 band will not lock onto a 4.0. It is a physical fit difference, not a software one. Every zamani heritage design is made for both generations at the same price, so just select your model at checkout.
Step one: identify which WHOOP you have
Two ways, either takes seconds:
Check the app: WHOOP app → top right device icon → Device Settings. Your model is listed there.
Check the back of the device: Flip your WHOOP over. The model number is printed on the casing. “WHOOP 4.0” or “WHOOP 5.0” will be clearly visible. The 5.0 MG uses the same band as the regular 5.0, so select WHOOP 5.0 at checkout.
WHOOP 4.0 vs 5.0 MG: what is different about the band?
The clasp housing is a different size between generations. A 4.0 band will not sit flush on a 5.0 MG device. This is a physical fit difference, not a software one.
WHOOP 4.0: Narrower clasp. If you got your WHOOP before mid-2025, this is almost certainly what you have.
WHOOP 5.0 / 5.0 MG: Wider clasp, updated slide mechanism. Got it in late 2025 or 2026? This is yours.
Every zamani design is available for both generations at the same price.
How to attach your band in seconds
zamani bands use the same hook that came in the box with your WHOOP. No adapters needed. Slide the band through the clasp from one side, loop it back, press the tab down. Most people get it right on the first try.
The heritage designs available for WHOOP
Four designs, all available for WHOOP 4.0 and 5.0 MG:
Keffiyeh: White and black geometric pattern that your grandfather would recognise and your training partner would ask about. It crosses generations and gyms. Our most-worn design on race days.
Keffiyeh Black: Same pattern, quieter. For the person who carries the reference internally, doesn’t need to explain it, just needs it there.
Shemagh: Red on white, the Gulf at its most recognisable. The pattern of hospitality and grit. Bestseller in Saudi Arabia, Kuwait, and Qatar, and among everyone who grew up with it somewhere else.
Cedar: A single symbol, nothing else. Lebanese cedar for the person who wants heritage on their wrist without loudness. Minimal enough for any occasion.
Can’t decide? The WHOOP Keffiyeh Bundle lets you get the band and a matching bracelet together.
Practical notes
Sensor accuracy: The band sits above the WHOOP sensor, not over it. Medical-grade silicone, no interference with HRV, SpO2, or skin temperature readings. Your data stays your data.
After workouts: Rinse under water, wipe with mild soap if needed. Avoid daily alcohol wipes as they degrade silicone over time.
Sleeping with it on: The bands are lightweight enough that most people stop noticing them within a few nights. Keffiyeh Black gets the most positive feedback for overnight use.
Wrong model ordered? Contact us within 14 days and we will exchange it, no fees, no questions.
Frequently asked questions
Does the band fit the WHOOP 5.0 MG?
Yes. The 5.0 MG uses the same band attachment as the regular WHOOP 5.0. Select “WHOOP 5.0” at checkout.
Can I use a WHOOP 4.0 band on a 5.0 MG?
No. The clasp housing is a different size between generations. You need a model-specific band.
What about the WHOOP Body?
WHOOP Body is worn as a garment sleeve, not a wrist device. There are no bands for it. If you have a wrist WHOOP, you are in the right place.
Can I swap between designs within the same generation?
Yes. All zamani bands within the same WHOOP generation are interchangeable. You cannot mix across generations (4.0 and 5.0).
How long does the band last?
Customers have worn the same zamani band daily for over two years with no visible wear. Rinse after heavy workouts, avoid prolonged direct sunlight when off the wrist.
Is there a size guide?
The band fits most adult wrist sizes. WHOOP bands are sized to the clasp, not by lug width. If you are unsure, reach out before ordering.
Ready to upgrade? See all WHOOP bands or go straight to the WHOOP Keffiyeh Bundle.
