Is Liberty 4 NC better than R50i in terms of sound?
IMO, sound is subjective so there isn't really better or worse.
Since you are interested in testing, you can maybe check this store out
https://www.stereo.com.sg/
Previously I heard they allowed testing but I'm not sure now.
1. Noise cancellation as i frequently have to take calls on this
2. Sound Quality for Music, i am more of a bass and tremble person
3. Multi point connectivity will be great
4. Also i usually take flights and sometimes long flights, comfort level for 6-8hrs quite important as well
I only have the 4 NC so there might be some sort of bias-ness. Probably better to wait for others to weight in as well
1) Yes, not bad ANC with different levels 1-5 and auto. 1-3 makes a lot of difference but i cant really tell the difference in ANC beyond 4. Normally just left it on AUTO on my trips (flight / mrt / bus)
UPDATE : i think what you mean was the CVC for calling right? Not hearing noise cancellation?
If so, never really tried calling with it before. Maybe can also look at Jabra
2) Subjective, but the good thing is there is built in EQ so you can adjust it. Or you can try the HearID then adjust it from there.
3) Yes, supports multi point though wasn't a use case for me hence haven't tried it
4) Wore it during my flight to japan and fro, used about 4-5hs and had some juice leftover for the taxi ride / train rides.
1 purely for music, and 1 for taking calls
I do this though for the call one, its mostly for office teams call, so i use a cheaper soundpeats bud