If you purchased this and try it for mining, good luck. This can be sort of marketing and riding the hype of cryptocurrency mining like last year when people are buying GPU cards.
I guess not, for the reason smartphones now do have a high specifications that can almost be par on netbooks or even laptops.
They may have high specs but still it's not enough to mine bitcoin like what STT said about the heat effect that it will bring.
Really? I once knew, my friend uses his smartphone for mining cryptocurrency. But, need to know the smartphone is only has a small strength when compared with miner and computer. And mining using a smartphone will be very burdensome smartphone that leads to damage. To my knowledge other than smartphone can be used for mobile wallet can also be used for mining.
What's the crypto he's mining? Maybe he's mining ETN that makes you look like you're really mining on your phone but its not.