Where iPad trumps Android is that the way it handles hi-res and different music sample rates; everything with Android is re-encoded (up or down sampled) to the same output, iOS recognises sample rates and outputs accordingly (better hardware/OS integration I guess). This is why LG phones (and DAPs like the Walkman) are so popular, because they have a specific DAC for audio. Some apps like Tidal can now bypass the internal phone DACs now, finally, but require an external DAC I think.