Realme Buds Air 6 Pro vs Realme Buds Air 6, how to choose?

Source: Self-purchase.
Test device: OPPO Find N2 / VIVO X100pro
Note:
Due to regional and time constraints, it’s impossible to cover all the high-quality products currently available on the market.
The marked prices may differ from the actual selling prices and are for reference only.
The listening experience is absolutely personal and subjective, so reviews for reference only.
All evaluations and ratings in the videos are based on price.