iDevice in its widest sense, is an unofficial general term that can refer to any mobile electronic devices marketed by Apple Inc. that start with "i" or more specifically any mobile devices that use the iOS operating system, which includes:

• iPad
  IPad
  The iPad is a line of tablet computers designed, developed and marketed by Apple Inc., primarily as a platform for audio-visual media including books, periodicals, movies, music, games, and web content. The iPad was introduced on January 27, 2010 by Apple's then-CEO Steve Jobs. Its size and...
  
  
• iPhone
  IPhone
  The iPhone is a line of Internet and multimedia-enabled smartphones marketed by Apple Inc. The first iPhone was unveiled by Steve Jobs, then CEO of Apple, on January 9, 2007, and released on June 29, 2007...
  
  
• iPod
  IPod
  iPod is a line of portable media players created and marketed by Apple Inc. The product line-up currently consists of the hard drive-based iPod Classic, the touchscreen iPod Touch, the compact iPod Nano, and the ultra-compact iPod Shuffle...
  
  
• iPod Touch
  IPod Touch
  The iPod Touch is a portable media player, personal digital assistant, handheld game console, and Wi-Fi mobile device designed and marketed by Apple Inc. The iPod Touch adds the multi-touch graphical user interface to the iPod line...
  
  

Additionally, the term can be used pejoratively, indicating that the product is an overpriced status symbol

Status symbol

A status symbol is a perceived visible, external denotation of one's social position and perceived indicator of economic or social status. Many luxury goods are often considered status symbols...

. British writers Shaun Nichols and Iain Thomson explained: "Apple products tend to be very polarising: either you think they're revolutionary devices that reshape the industry, or you think they're overpriced, underpowered status symbols for those who have more money than brains."