Noise blocking
Winner: Soundcore SleepThis is the real difference. Soundcore gives the A30 three layers: active noise cancellation, the passive seal of the tips, and adaptive snore masking, aimed at snoring, appliance hum, pet movement and traffic. Active cancelling is at its best on steady, low sounds, which is exactly what masking alone struggles to cover without being turned up.
The Ozlo has no active cancelling. It relies on the seal of its silicone tips plus masking audio, which Ozlo argues works better than active cancelling for a snoring partner, and it switches to masking automatically once it detects you are asleep. If snoring is your only problem, both handle it with masking. If a road, a fridge or an air conditioner is part of the problem, the A30 is built for it and the Ozlo is not.
