I BOUGHT THE MI BAND 2 6 MONTHS AGO, IT HAS A EXCELLENT BATTERY LIFE WHICH CAN COME UPTO 20DAYS OF USAGE USING EVERYTHING.I BOUGHT THUS FOR RS 2000 FROM A MI SHOWROOM THIS IS BETTER THAN THE HRX EDITION THAT DOES NOT HAVE A HEART RATE SENSOR, BUT THIS DOES NOT SHOW THE EXACT RATE AND EVEN THE STEPS COUNT ARE NOT THAT GOOD, IT IS TOO SLOW THE STEPS ARE RECORDED AFTER 1MIN NOT AT THE TIME OF WALKING YOU CAN SET YOUR OWN SETTINGS LIKE DISPLAYING BOTH THE TIME AS WELL AS DATE, STEPS, THE DISTANCE YOU HAVE COVERED IN EITHER METERS OR KILOMETRES IT DEPENDS HOW MUCH YOU WALK OR RUN, IT ALSO SHOWS HOW MUCH CALORIES YOU HAVE BURNT, THE HEART RATE SENSOR, THE BATTERY PERCENTAGE, AND THE MOST AWESOME THING IS WHEN YOUR BAND IS CONNECTED TO YOUR PHONE VIA BLUETOOTH, WHEN YOU GET A CALL FROM YOUR PHONE YOUR BAND VIBRTAES AND ALSO FOR THE NOTIFICATIONS DEPENDING UPON YOUR SETTINGS.ONE PROBLEM WHICH I FACED WAS DURING CHARGING YOU HAVE TO CHARGE IT EXACTLY THE SAME WAY, AND IT DOESN'T EVEN SHOW WHETHER IT IS CHARGING OR NOT, THE BEST THING ABOUT THIS IS YOU CAN CHANGE THE DESIGN BY CHANGING THE STRAPS, WHICH ARE AVAILABLE IN THE ONLINE WEBSITES, THIS IS BEST FOR EVERYONE ONE FROM TEENS TO OLD AGE ONES THIS WILL NOT SUIT FOR SMALL ONES BECAUSE THEY WILL HATE THE DESINGN.