Sensor:
Face ID, accelerometer, gyro, proximity, compass, barometer / Siri natural language commands and dictation or Fingerprint (side-mounted), accelerometer, gyro, proximity, compass or Fingerprint (under display), accelerometer, gyro, proximity, compass
Battery Capacity:
Earbud battery capacity: 40 mAh (typical capacity), Charging case battery capacity: 500 mAh (typical capacity), Type: Lithium-ion polymer lithium battery