Pros

• Big display (5.5 inches)
• High-resolution display (1080 x 1920 pixels)
• High pixel densitiy screen (401 ppi)
• Fast mobile data support (4G)
• Thin body, measuring less than 7.5mm/0.3inches 
  (0.28 inches)

Cons

• Lacks microSD slot for storage expansion
• Too little RAM memory (1024 MB RAM)
• Battery is not user replaceable
• Proprietary USB connector - have to use its cable
  instead of a standard microUSB