The iPhone 7 has become a very hot topic, even though nobody knows what Apple Inc.’s next iPhone will be called. The iPhone 6 and 6 Plus have been in the market for just about three months, but there is already a lot of rumors and speculations around the next version of the iPhone. To begin with, many expect the new iPhone to be called iPhone 7, but many others argue that Apple will call it the iPhone 6S.

iPhone 7: What You Need To Know About Apple's Next Phone

iPhone 7, or iPhone 6S or both?

There is another rumor circulating that the Cupertino company might launch a low-cost iPhone 6C (in line with the iPhone 5C) for those who can’t afford to buy the expensive iPhone 6 and 6 Plus. Meanwhile, Daily Mail has learned from its sources that Apple will now release new iPhones twice a year. It will help the company cope with competitors that seem to launch a new smartphone every quarter.

So, there are speculations that the iPhone 6S could arrive with Apple Watch in the first half of 2015 while the iPhone 7 is released in September 2015. Another rumor claims that Apple is gearing up to launch a 4.-inch iPhone, targeted especially at women. So, MacWorld believes that Apple might choose to announce its 4-inch phones in one set, and larger iPhones in another set.

The new iPhone is expected to display more apps on the screen due to its bigger size. The iPhone 7 is rumored to have a 14-megapixel main camera and an impressive 4-megapixel front snapper. John Gruber of Daring Fireball recently reported that the iPhone 7 will have a two-lens system to capture “DSLR quality imagery.” The next flagship iPhone will sport sapphire display, which is more durable than Gorilla Glass.

Foxconn setting up $2.6 billion sapphire plant

Sapphire was planned for the iPhone 6 and 6 Plus. But Apple’s sapphire supplier GT Advanced Technologies couldn’t provide sapphire material. Apple’s long-time supplier Foxconn is reportedly setting up a $2.6 billion sapphire production plant in Taiwan to produce sapphire for the iPhone 7. Apple is said to be considering liquidmetal as a material for the smartphone chassis. Liquidmetal is far more durable than aluminum. It could help Apple avoid a bendgate-like controversy.

What’s more, Samsung has reportedly won the contract to build A9 processor for Apple’s next iPhone using its 14nm FinFET technology. The Korean electronics giant will be responsible for 90% of A9 chip production. Wireless charging and finger-pressure detection are the other two features to look forward to.