Brand - Fire-Boltt, Model - Fire-Boltt Supreme, Watch Size - 45mm, Cellular Network - No, SIM Card Slot - No, Dial Shape - Square, Display Size - 1.79 Inch, Display Type - LTPS Retina Display, Display Resolution - 369 x 448, Camera - No, Calling Feature - No, Loudspeaker - No, Microphone - No, Sport Modes - 20 Sports Modes, Waterproof - Yes, Waterproof Rating/Level - 3ATM, Water Resistant - Yes, Dustproof - No, Blood Pressure - Yes, Blood Oxygen - Yes, Heart Rate - Yes, Sensors - SpO2 Monitoring & Heart Rate Tracking, Optical Heart Rate, Capactive Sensor, Blood Pressure Monitor., Electrical Heart Sensor (ECG App) - No, Optical Heart Sensor - Yes, Activity Tracker - Yes, Vibration - Yes, Button - 1, Card slot - No, Wi-Fi - No, Bluetooth - Yes, Bluetooth Version - Bluetooth 5.0, GPS - No, Connectivity - Bluetooth, Charging Method/Port - Magnetic Charging, OS & Version - Android & iOS, Others - True to life picture, ALPS Knob Button, Battery: 8 Days Normal Use, 15 Days Standby Time., Features - Health Monitoring Feature: Heart Rate Tracking, SpO2 Blood Oxygen Monitoring, Step tracker, Distance Travelled, Activity History,Sleep Monitor. Smart Feature: Dual UI, Messaging Support, Caller Name Information, Call Rejection, Find my Phone Feature, Sedentary Reminder, Remote Music Control, Wake Gesture., Warranty - 6 Month (Warranty must be claimed with original box & all accessories)