WHOOP SuperKnit – Compatible 5.0/MG, One, Peak, Life – ECG Compatible, Signature Performance Knit Accessory – Not Compatible with Gen 4

WHOOP 5.0/MG SuperKnit – ECG Compatible, Signature Performance Knit – Not Compatible with Gen 4

WHOOP 5.0/MG SportFlex – ECG Compatible, Waterproof, Sweatproof, Silicone Accessory for Health & Fitness Wearable - Not Compatible with Gen 4