The word smartphone is a little bit misleading nowadays since we do so much with those gadgets. In addition to making phone calls, we text, surf the Web, listen to music, watch videos - the list goes on and on. All of those apps and functions take up a lot of space, which is why Apple's decision to limit the entry-level iPhone 6 and 6 Plus to 16 GB seems counterproductive. But, it turns out there might be a method behind Apple's madness, and you're not going to like it.
Quite simply, Apple probably limited the space on the cheapest iPhone 6 because it helps the company make money. And not just a little money. Apple could potentially make $3 billion next year as a result of the limited entry-level iPhone 6.
Even though Apple kept the entry-level iPhone at 16GB, the mid-tier iPhone's storage has doubled from 32GB to 64GB. The top-tier model has 128GB. This will cause a lot more people to go for the 64GB model, which costs $100 more. In fact, Cybart estimates the 64GB model will be the most popular of the three.
The theory makes sense. Having just 16 GB of storage on your iPhone can limit what you're able to do, so many people will opt for the more expensive version.