A popular app takes 10 seconds to execute on a 10 watt smart

A popular app takes 10 seconds to execute on a 10 watt smartphone A, and it takes 8 seconds to execute on a 14 watt smartphone B. Which smartphone would you buy if you primarily care about battery life and run this app all the time (both smartphones have the same battery)?

Solution

I would choose the 14watt smartphone B as it is providing me with a good big battery backup and also the execution time of the app is also less as compared to the one in smartphone A. So in order to use this app for a lonnger duration, using the smartphone B would be beneficial. The battery is identified from the given info. that is 14watt. Usually smartphone charger comes as (1amp/5watt). As the watt provided in the info is large states that the battery capacity is large and will last longer in comparison to the one providied in the smartphone A. So if someone cares about the battery life, one should go for smartphone B.