Hi bro, LG is better, 100% not bias, objective comparison as below:
1) Ria has no moving tap, water may spill out a bit due to height of water tap to ur cup
2) Ria has less preset volume (only 120 and 1000ml), LG 516 has more (120, 250, 500 and 1000), LG 518 even more canggih, while still have the 4 same preset volume options, can even control every 10ml between 120~1000ml
3) Ria
may not have auto internal sterilisation function (no info on website), so can only keep itself clean every few months when technician visit
4) Ria internal pipings are most likely plastic, if it's SUS304 stainless steel like LG or Hyper, they'll probably advertise it as a strong selling point
5) Most importantly, they are charging u more, higher price for less compare to wat LG is giving
If compare to Hyper, it is much much better spec than Ria, but still:
1) Hyper has moving tap, but only manual by hand, LG's is auto every time u dispense water
2) Hyper I'm not sure whether it has internal sterilisation function or not, their website only says UV water outlet sterilisation every hour, LG has UV sterilisation for water tap every hour and auto internal piping sterilisation every week
3) And again, they are charging u more, pricier than LG
Hope it helps bro, Whatsapp me if u interested to see demo video of LG water purifiers

I have follow-up 5 questions, sent you a PM.