HK$88 a month for Disney or YouTube? YouTube Premium includes both its music service (i.e. Spotify replacement) and YouTube videos for HK$68 a month. I think if you just want music its HK$58 a month (same price as Spotify).
Yeah and also for ultra HD Netflix charges 93 a month 4 devices, and a YouTube Premium is 98 a month for family plan, no restrictions on 4k. I would get the premium family, since then you can use it say on TV and also on your phone, other half's phone, or iPad.