Simultaneous-stream ceiling vs raw channel volume. For households with multiple viewers, this is the key comparison.
If your household watches IPTV on 3+ devices at once (common for families), Layerseven's higher simultaneous-stream ceiling (up to 5 on its family tier) directly competes with Xtreme HD's 2-stream default. That's a real workflow difference — not a spec-sheet curiosity.
Layerseven also has cleaner direct-from-operator availability than Xtreme HD, which is still heavily reseller-distributed. Raw channel count slightly favours Xtreme HD (22k claimed vs 18k), but both numbers include significant duplicates.