Beats are junk. Compared to the S4i, bass-wise, it probably has the same amount, but the EarPods are more tube-y or boomy. The EarPods aren't ridiculously skewed to bass, but it's certainly an obvious intention to have more bass. They also don't have the clarity that S4i has. It's also important to remember that EarPods don't have the ear seal that S4i do.
Hope that helps.
I use the S4s daily and I would say you're spot on. Clarity is definitely lacking in comparison but then again they are a total different price range and not in-ear. Huge improvement over the old buds. They are actually comfortable in my ears now. These will probably be my throw around pair for the gym.