Fire-Boltt is India' No 1 Wearable Watch Brand Q122 by IDC Worldwide quarterly wearable device tracker Q122.【1.69” HD Large Touch Screen】- Fire-Boltt Ninja Fit comes with a 1.69” HD Full Touch Display for smooth swipes and clear vision;【SPO2/ Oxygen, Heart Rate】 - Fire-Boltt Ninja Fit Smartwatch comes with real time 24*7 SPO2 / Blood Oxygen tracking, Dynamic Heart Rate Monitoring 【120+ workout modes】- This smartwatch consists of 120+ sports mode to track. Keep a track of all your activities and compare history to analyse your performance. Count steps, distance, and calories burned. Charging Specs - The watch needs to be charged for 3 hours to reach 100%. The charger should be a 3.7V to 5V adapter or any laptop output. For a bare minimum of 20% charge the watch needs to be charged for about 30-40 mins