New Delhi, June 10 -- A smartwatch is most useful when it is always ready to wear, but frequent charging can quickly become frustrating. Features like Bluetooth calling, health tracking and bright displays often put extra pressure on battery life, leaving many users reaching for the charger more often than they would like.

Thankfully, several smartwatches now offer up to a week of battery life without sacrificing important features. Many of these models still include AMOLED displays, fitness tracking, Bluetooth calling and comprehensive health monitoring. With ongoing sale discounts also reducing prices on selected models, this can be a good time to upgrade to a smartwatch that spends more time on your wrist and less time connected to a ...