Samsung Galaxy S4

Key Features
ANT+ support
Wireless charging (Qi-enabled) – market dependent
S-Voice natural language commands and dictation
Smart stay, Smart pause, Smart scroll
Air Gestures
Dropbox (50 GB cloud storage)
Active noise cancellation with dedicated mic
Photo/video editor
Document Viewer

Samsung Galaxy S6

Key Features
ANT+ support
Wireless charging (Qi-enabled) – market dependent
S-Voice natural language commands and dictation
Smart stay
OneDrive (115 GB cloud storage)
Active noise cancellation with dedicated mic
Photo/video editor
Document Viewer

Samsung Note4

Key Features
ANT+ support
Fast battery charging: 60% in 30 min (Quick Charge 2.0)
S-Voice natural language commands and dictation
Air Gestures
Dropbox (50 GB cloud storage)
Active noise cancellation with dedicated mic
Photo/video editor
Document Viewer