There might be many similarities between the the Galaxy Note 3 and S4, but at the end of the day, they still boast their own unique features to make them powerful contenders in the space...
Source: http://www.phonearena.com/news/Samsung-Galaxy-Note-3-vs-Samsung-Galaxy-S4-first-look_id47083
Source: http://www.phonearena.com/news/Samsung-Galaxy-Note-3-vs-Samsung-Galaxy-S4-first-look_id47083