Sensor:
Both earbuds use built-in capacitive sensors or Fingerprint (under display), accelerometer, gyro, proximity, compass
Charger Type:
Fast charging 20W, 50% in 30 min (advertised), USB Power Delivery 2.0, MagSafe wireless charging 15W, Qi magnetic fast wireless charging 7.5W
Battery charging:
Fast Charge 10 mins for 20 Hours