which is why Apple spends billions on chip research, which is why they use their own in-house chips for iPhones, and which is why they're dumping Intel in exchange for their own in-house chips on their computers. Apple has ARM chips that sip power--which means the batteries can be smaller--and yet which provide significantly better performance than anything else on the market. It's a one-two punch.
Meanwhile, Android makers just goes the brute force route. The chips get more powerful, which means they need more power, which means the batteries need to be bigger, which means the phone needs to be bigger.
And that sucks.