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llcoolj

I see that the apple watch only has one core, and was wondering how the number of cores affects battery life in general?

yey1

I can image that parallel codes can make Apps run faster. But I was wondering if it would also consume much more power and drain the battery ridiculously fast. Currently I need to charge my iPhone everyday.

taobingxue

It seems multi-cores won't affects battery a lot. Smartphones need more power mainly because of the high-frequency components (4GHz) we are using and smartphones are doing much more things than before like to connect the internet.

ferozenaina

Dynamic power consumption is linear with clock speed. A 2Ghz single core would consume more power than a 1Ghz dual core due to other overheads too.

ferozenaina

@yey1 - older phones were typically bulkier and had more battery capacity with smaller screens.

In phones, the main power drain is the high-res display and NOT the ARM processors.