While an autopsy, undertaken the same day Presley died, was still in progress, Memphis medical examiner Dr. Jerry Francisco announced that the immediate cause of death was cardiac arrest. Asked if drugs were involved, he declared that drugs played no role in Presley's death.
Power Reserve notification (left), Charging the Apple Watch (middle and right). As for charge times, Apple says it takes about 1.5 hours to reach 80% and up to 2.5 hours for a full 100% charge. Real-world Watch battery performance.
The company claims it can perform for up to five days on a single charge, theoretically trouncing the Apple Watchâs two-day average. Unlike the Apple Watch, however, the Blaze doesn't support any third-party apps, making it less smartwatch, more smart fitness tracker.