So I am planning to buy my first DAP but am having trouble choosing since there are so many choices. The things I'm looking for in a DAP are Bluetooth and Wi-Fi (for spotify) functions firstly. Well I plan on using them with IEMs mostly so if it can power up for example my fiio f9 pro louder than my galaxy s8 I'm ok . Other than that I guess the battery is big enough for one day of use. Touch screen would be preferable. My budget is also 700usd$. Tbh other than that I don't know what other features I should look for in DAPs. Any recommendations would be hugely appreciated.