Smart band / smartwatch Samsung FIT2 Excellent and very practical, reads with excellent accuracy. Its battery lasts a week or less depending on the features used, but at least it lasts 5 days. Specifications: Sleep monitoring Blood pressure monitoring Heart rate monitoring Respiratory effort monitoring And the rest of the known specifications for watches. Supports notifications and replies. Does not support calls, but alerts you to an incoming call. Price is negotiable, contact via Haraj or WhatsApp.