Garmin Index Sleep Monitor S/M ANT+ BT MFPN=DROPOUT-561 K3 is exactly this

K3 is exactly this

Can be upgraded to a power meter (sold separately)

}RockShox Fork Service Kit - 200 Hour/1 Year Reba 130-150mm (A7) (Standard) Reba 26 80-140mm (A1)

Compatible with a wide range of temperatures (-20°C/68°F to 70°C/158°F)

moisture wicking

Garmin Index Sleep Monitor S/M ANT+ BT MFPN=DROPOUT-561 K3 is exactly thisHow did you sleep? Find out with the Index Sleep Monitor . Comfortable, lightweight and worn on the upper arm, this smart sleep band helps you better understand how your body recovers by capturing sleep tracking and recovery metrics as well as advanced womens health data (data presented is intended to be a close estimation of metrics tracked). Plus, get up to 7 nights of battery life. TECH SPECS Connectivity ANT+ BT Misc S M