I have the Tenores, ED9, and the new Xiaomi Hybrids. Forget about the ED9s they won't hang, just a fairly high resolution low budget phone, WAY too much spikey Treble for me personally. I don't know anything about the Fidues. The Xiaomi will easily go head to Head with the Tenores. I give a
slight edge to the Tenores for resolution and Treble, but other than that, the Xiaomi kill them in impact, Bass presentation, and build Quality. I'd say the soundstages are comparable.
The Tenores are much easier to drive, the Xiaomi's don't shine without POWER, and a lengthy burn in.
The Xiaomi are less expensive. Either way they are both very good iems.
JMHO
TWIN