Brand - Fire-Boltt, Model - Fire-Boltt Hulk, Watch Size - 45mm, Cellular Network - No, Dial Shape - Square, Display Size - 1.78 Inch, Display Type - Amoled Display, Display Resolution - 368 x 448, Camera - No, Calling Feature - Yes, Loudspeaker - Yes, Microphone - Yes, Sport Modes - 100+ Sports Modes, Waterproof - Yes, Waterproof Rating/Level - IP67, Water Resistant - Yes, Dustproof - Yes, Blood Pressure - No, Blood Oxygen - Yes, Heart Rate - Yes, Sensors - SpO2 Monitoring & Heart Rate Tracking, Optical Heart Rate, Capactive Sensor, Electrical Heart Sensor (ECG App) - No, Optical Heart Sensor - Yes, Activity Tracker - Yes, Vibration - Yes, Button - 1, Wi-Fi - No, Bluetooth - Yes, Bluetooth Version - Bluetooth v5.0, GPS - No, Connectivity - Bluetooth, OS & Version - Android 5.0 & IOS 9.0 And above, Watch Dimension - 36.6 x 26 x 12.1mm, Weight - 36.8 gm, Others - Full Touch Screen, 550 Nits Peak Brightness., Features - Health Monitoring Feature: SpO2 Monitoring, Heart Rate Tracking, Sleep Monitoring, Blood Oxygen Levels, Drink Water Reminder, Sedentary Reminder, Female Health Care, Calories Burned, Tracking & Remineder. Smart Feature: Bluetooth Calling, Caller Name Information, Call Rejection, Voice Assistance, Built In Calculator, Low Battery Reminder, Remote Music & Camera Control, Wake Gestur, Screen Brightness ., Warranty - 6 Month (Warranty must be claimed with original box & all accessories)