Dfit d21 smart bracelet activity trackerwater resistantwaterproof long standby calories burned pedometers heart rate monitor
Languagessimplified chinese english capacity mah80mah connectionbluetooth40 typesmart bracelet activity tracker featurestouch screen long standby pedometers calories burned alarm clock heart rate monitor sleep tracker water resistant water proof modeld21 sensorheart rate sensor smartphone assistantmessage control hands free calls supported operation systemiphone android ios
.png)
