Had this on my note 3 and it worked great. Looks like there will be one for the 4 soon. Good alternative for those looking to use their factory back with wireless charging capability.
N4 PWRcard - Qi Wireless Charging Receiver Card Coil for Samsung Galaxy Note 4 IV by Fonesalesman Amazon.com: N4 PWRcard - Qi Wireless Charging Receiver Card Coil for Samsung Galaxy Note 4 IV: Cell Phones & Accessories
Sent from my Samsung GALAXY Note® 4 using Tapatalk
N4 PWRcard - Qi Wireless Charging Receiver Card Coil for Samsung Galaxy Note 4 IV by Fonesalesman Amazon.com: N4 PWRcard - Qi Wireless Charging Receiver Card Coil for Samsung Galaxy Note 4 IV: Cell Phones & Accessories
Sent from my Samsung GALAXY Note® 4 using Tapatalk