Oh but they do, im talking strictly on the SoC perf here, which Fiio doesnt shy away from shouting as their best selling point
what they put on their marketing for they Exynos 7872 is nothing short of hyperbole
As they used words like "rivaling smartphone" and "unrivaled performance" right afterwards in the next slide.
Fiio M15
The second point you may accept as "unrivaled" as a dap, but others can also argue that DAP's performance should be compared to smartphone as the two run the same OS thus face the same kind of load in its performance.
And, Fiio bring up the smartphone comparison themselves by putting "rivalling modern smartphone" catch.
In the same page Fiio claims to be using all the flagship chips Qualcomm and AKM makes, it makes putting the Exynos 7872 as the SoC right on the next slide sounds like a bigger deal than it actually is.
Not that its bad of them, its their marketing people being smart.
Buyers should heed and not really take anything the marketing material has to say seriously.
Its just that nothing really get up there in DAP's performance , and Chip makers surely wont just make a custom chip for such a low quantity sale device like DAP, so everyone is probably gonna be stuck with a low end chip, no matter how expensive the DAP are. Even more when This here is also the same chip the M11 uses and that thing's just 1/3 of the price of M15. There's no way a $500 DAP would have $300-500 smartphone performance. The cost have to go to improving the audio quality stuffs.
Expectations for it should all be rein in until entry level chip can reach flagship phones performance from 2-3 years ago IMO, ie Snapdragon 835's level is enough for anyone and is imperceptible in day to day use even to people sensitive to "slow-ness". Until then, just get used to sligt incoonvenience, thats just what you have to pay for when choosing a DAP with an Android.
Dont get baited with how fast smartphone's price drop (like 60-70% after a year), that only happens because of just how saturated smartphone market are, its not gonna happen with DAP. Nothing can compete with how cheap in performance per $ old smartphones are.