It's that time again: Apple (AAPL) is expected to release three new iPhones this fall. 

That means rumors are flying about what the new phones will look like -- and what it means for Apple, which earns more than 60% of its revenue from iPhone sales. Apple typically unveils new phones in September, and new iPhone models and features are a closely guarded secret. 

From SIM card slots to fancy new colors and features, TheStreet breaks down some of the biggest iPhone rumors to emerge so far. 

 

More from Video

Buy CVS Stock 'With Alacrity' If It Falls 8% From Here, Jim Cramer Says

Buy CVS Stock 'With Alacrity' If It Falls 8% From Here, Jim Cramer Says

Why Jim Cramer Is Holding Off on Buying Nvidia Stock

Why Jim Cramer Is Holding Off on Buying Nvidia Stock

3 Things to Know at Market Close: Netflix, Chinese New Year, and KPMG

3 Things to Know at Market Close: Netflix, Chinese New Year, and KPMG

Stocks Are Walking a 'Tightrope' Right Now, and That's Good, Cramer Says

Stocks Are Walking a 'Tightrope' Right Now, and That's Good, Cramer Says

Why Jim Cramer Likes Cisco

Why Jim Cramer Likes Cisco