Please refer to the information below for the smartphone (or other device) OS versions and other specifications which allow connecting your smartphone (device) to the camera wirelessly (as of October 2018).
Camera Connect for iOS
To connect via Bluetooth, a Bluetooth-equipped camera and a Bluetooth 4.0 or later-equipped device* (supporting Bluetooth low energy technology) is required.
*Bluetooth 4.0-equipped devices: above iPhone 4s / iPad 3rd/ iPod touch 5th
Camera Connect for Android
To connect via Bluetooth, a Bluetooth-equipped camera and a Bluetooth 4.0 or later-equipped device (supporting Bluetooth low energy technology) compatible with Android 5.0 or above is required.
To connect via NFC, an NFC-enabled camera and an NFC-enabled Android 4.4-8.1 is required.