Brand - Fire-Boltt, Model - Fire-Boltt Thunder, Watch Size - 33mm, Cellular Network - No, SIM Card Slot - No, Dial Shape - Round, Display Size - 1.32 Inch, Display Type - Amoled Display, Display Resolution - 360 x 360, Camera - No, Calling Feature - Yes, Loudspeaker - Yes, Microphone - Yes, Sport Modes - 30 Sports Modes, Waterproof - Yes, Waterproof Rating/Level - IP68, Water Resistant - Yes, Dustproof - Yes, Blood Pressure - No, Blood Oxygen - No, Heart Rate - Yes, Sensors - SpO2 Monitoring & Heart Rate Tracing, Body Temperature monitoring, Optical Heart Rate, Capacitive Sensor., Electrical Heart Sensor (ECG App) - No, Optical Heart Sensor - Yes, Activity Tracker - Yes, Vibration - Yes, Button - 2, Card slot - No, Wi-Fi - No, Bluetooth - Yes, Bluetooth Version - Bluetooth 5.0 or Above, GPS - No, Connectivity - Bluetooth, Charging Method/Port - Magnetic Charging, OS & Version - Android 4.4 & IOS 8.0 And above, Others - Full Touch Screen, Battery: Typical usage time 10 days, Standby time up to 30 days., Features - Health Monitoring Feature: Fire-Boltt Thunder. Being one of the most important health metrics in the current Covid-19 situation, Fire-Boltt Thunder smart watch SpO2 tracking is close to precision and easy to use, a must have on your smartwatch. Heart Rate Tracking, Sleep Monitoring, Calories burned. Smart Feature: Bluetooth Calling, Caller Name Information, Call Rejection, Inbuilt games, Remote Music & Camera Control, Sedentary Reminder, Weather Forecast, Wake Gesture., Warranty - 6 Month (Warranty must be claimed with original box & all accessories)