Hi there, I'm Joseph Yeung, an official customer service representative for FiiO now. *waves*
Right now, on our official website's product page for the E18 we have a compatibility list of smartphones supported by the E18 for USB Audio. Only problem: there's a grand total of just 18 smartphones listed.
*Works with E18 using USB Audio Recorder Pro as music player. Trial version download:
**Galaxy S4 works without requiring USB Audio Recorder Pro after OS is updated to Android 4.3 or above.
This belies the fact that the E18 was designed from the ground up to be the most android-compatible USB DAC ever. Its USB driver was carefully written to provide maximum plug-and-play compatibility and crucially, it does not draw any power from the smartphone when working as a USB DAC. (thus avoiding any incompatibility caused by current supply issues and extending the smartphone's battery life)
The E18 *should* be compatible with a lot more than 10 smartphones out there. Unfortunately, we don't have the budget to buy every smartphone out there and send them to FiiO labs for testing...
Did you try out the E18 at a store with your smartphone not listed here? Did it work? Or are you *gasp* a brave soul who bought the E18 on the hunch that it would work with your smartphone not listed here? Did that work out for you? Tell us about your experience here, whether it's positive or negative, and we'll be very grateful to you for helping us fill out our compatible models database!
I know there are a lot of threads on the E18 already, so to make up for spewing out yet another one, I will collate all compatibility tips / issues / advice on the E18 pairing with smartphones as they become available and add them to this opening post
Edited by Joe Bloggs - 1/19/14 at 8:42pm