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Fitness Trackers · Tool Face-Off

WHOOP 4.0 vs WHOOP 5.0

Quick answer

WHOOP 5.0 is the clear upgrade — smaller, smarter, and now with on-device health metrics. Unless you already own a 4.0 and love it, the 5.0 is worth the jump.

WHOOP 4.0
The band that made recovery cool
3.7★
VS
Our pick
WHOOP 5.0
Everything 4.0 did, but actually better
4.3★
Subscription Price
From $30/mo (monthly)
From $30/mo (monthly)
Upfront Hardware Cost
Included with membership
Included with membership
Battery Life
~4-5 days
~14 days
Sensor Count
4 sensors
5+ sensors (added healthspan metrics)
On-Device Display
No screen
No screen
Form Factor
Standard band size
~15% smaller & lighter
Blood Oxygen (SpO2)
Yes
Yes
Skin Temperature
Yes
Yes, improved accuracy
Healthspan Score
No
Yes
Charging Method
Slide-on battery pack
Slide-on battery pack (redesigned)
Free Upgrade for 4.0 Members
N/A
Yes (existing members eligible)
Water Resistance
IP68
IP68

WHOOP 4.0

Battery Life★★★½☆
App & Insights★★★★☆
Health Features★★★½☆
Value for Money★★★☆☆
Accuracy & Sensors★★★★☆
Comfort & Wearability★★★★☆

WHOOP 5.0

Battery Life★★★★½
App & Insights★★★★½
Health Features★★★★½
Value for Money★★★½☆
Accuracy & Sensors★★★★½
Comfort & Wearability★★★★½

Worth knowing

WHOOP 5.0 is so confident you'll never need to take it off that it even tracks how well you sleep while charging — because the battery lasts long enough that charging is practically optional.

If you want

You're a current WHOOP 4.0 member eligible for a free upgrade

It's free and strictly better. There is no reason not to upgrade.

→ Pick WHOOP 5.0
If you want

You want the longest possible battery life in a fitness tracker

14 days demolishes the 4.0's 4-5 days — fewer interruptions, more data continuity.

→ Pick WHOOP 5.0
If you want

You're budget-conscious and found a heavily discounted 4.0 deal

The 4.0 still delivers excellent HRV, sleep, and recovery data at a lower entry cost.

→ Pick WHOOP 4.0
If you want

You care about cutting-edge longevity and healthspan metrics

The 5.0's biological age and healthspan scoring is exclusive and genuinely novel.

→ Pick WHOOP 5.0
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