Wi Fi Digital Source

I'm confused. We recently did work in our house painting and needed to unplug the stereo. When reconnecting devices I noticed something odd.

I connected both my S22 Samsung phone and my very old  Samsung tablet to the Innuos app. The phone when playing music from the Innous app was overly bright and the sound was good, but not robust in the low bass.  It did not sound full and rich. The Samsung tablet was rich, full sounding with good low bass.

Why? The Samsung tablet is 5 yrs old, a dinosaur compared to to the phone, but sounds better. Both are on WiFi. So it's not just 1s and 0s? 

Now I am wondering if a new up to date iPad would make the sound unbelievably better?  Please give me your knowledge, idea on this. Thanks!