According to Glen Yeung, Citigroup’s analyst, the iPhone 5S will be unveiled in September to be followed by 4.8-inch iPhone 6 in Q1 of 2014. He further admitted with estimations by Wall Street that Apple is not willing to increase the screen size of iPhone this year.

Some display issues in iPhone 5S is likely to affect the production of this next-generation smartphone and will be responsible for any delay. However, the launch date is not going to be affected and only the volumes of handsets in the market will be consequently challenged as referred by Yeung.

Yeung also expects that iPad 5 would be similar to iPad Mini in all aspects other than its size and some prospect of a higher-end solution like the MS Surface Pro.

The research note by Yeung states about the possibility of a cheaper variant of the iPad Mini with a resolution of 2048 x 1536 pixels at around $230 to $250 too.

Apple may not announce any hardware related launch other than a MacBook refresh as WWDC is around the corner, opinioned by Yeung, rather the company would like to focus on the iRadio to open up API to its developers.