I think being a power bank + a phone is the major reason why it is getting so much attention - "Hey, I ought to buy a power bank, so why not this one which will

I think being a power bank + a phone is the major reason why it is getting so much attention - "Hey, I ought to buy a power bank, so why not this one which will give phone features too." Considering that the cost of this phone is almost equal to a good power bank, people would definitely chose this over others. I think this is an awesome example of giving something + some additional features equating to viral growth, even if the other features are not that good. Do we have an equivalent of that in software world?