iPhone killer is a buzzword used to describe any smartphone with the potential of surpassing the iPhone’s popularity and overtaking its market share.
Techopedia explains iPhone Killer
The success of the iPhone has inspired many mobile phone companies and organizations to create various smartphone iterations to generate interest and convert iPhone and Apple consumers and followers.
However, iPhone’s buyers remain loyal for many reasons, including:
Smartphone users want the full hardware and software experience.
Users want access to Apple’s ecosystem.
The iPhone software is generally considered to be more robust
Phones initially dubbed as iPhone killers include the T-Mobile G1 (also known as HTC Dream), Motorola Droid, Blackberry Storm, Google Nexus One and Palm Pre.