GoKawiilAnker's new Soundcore Sleep Earbuds 4 Pro adds a screen to its charging case
Anker unveiled the Soundcore Sleep Earbuds 4 and 4 Pro, successors to last year's A30 sleepbuds aimed at side-sleepers. Both models shrink the contact area for comfort, add Bluetooth 6.0, longer battery life and stronger noise masking, while the Pro version's SleepHub case includes an OLED display and phone-free controls plus an in-ear PPG sensor for tracking heart rate and sleep stress.