One of the best smart watches I’ve ever used. It has a very good battery life. The 46mm can last a full day with more than moderate use and full day of connectivity whereas it’s smaller sibling i.e. the 42mm version has a little less battery life but it wont either drain down before the day ends. Through this you can access your mails, your whatsapp notifications and lot more. You can keep a track of your fitness level. You can set reminders , alarms , agendas and a lot more. You can download third party apps to view your photos. The most important part is you can also connect it to iphone using the Android wear app