With Apple preparing for an event tomorrow that seems certain to launch the iPhone 6, figures show that the companys 2012 iPhone 5 is still its most popular device.

Speculation is running wild ahead of the Tim Cook-led event tomorrow, with many rumours indicating that Apple will be unveiling two different sized iPhones, as well as a wearable device. The two-phone launch would echo last years release of the iPhone 5s and the cheaper iPhone 5c, which resulted in record revenues the following quarter. However, figures from Localytics show that the iPhone 5, released in 2012, is still the companys most popular smartphone, with 27 per cent of the iPhone market share.

The iPhone 5s is only slightly trailing its predecessor, with 25 per cent of the iPhone market. This is likely due to the fact that most iPhones come cheaper if the consumer elects to sign a two-year contract, locking them into a two-year upgrade cycle. This means the new iPhone, expected to be available later this month, will mostly eat into the iPhone 5s market share.

Details are still unclear about what innovations the new iPhone will include, but a survey by FinancesOnline showed that the most sought-after new feature was a sapphire screen, with 45.5 per cent of consumers interviewed listing it as their most wanted addition. An infrared camera and new health and fitness tools were also hoped for, with 19.2 per cent and 10.7 per cent of users listing them as most wanted, respectively.

The most wanted improvements to existing features focused on solving everyday issues, with 37 per cent listing improved battery life as their top improvement, 19.2 per cent seeking a bigger screen and 11 per cent hoping for better phone reception.

No matter what new features or improvements the announcement tomorrow unveils, dedicated Apple fans will no doubt be queuing around the block to buy the new iPhone. In fact, the Apple store in Ginza, Tokyo, already has six customers queuing outside, despite no confirmed release date.