How does the battery life of the iPhone 15 compare to the iPhone 14?

The battery life of the iPhone 15 shows a notable improvement over the iPhone 14, thanks to a combination of slightly larger battery capacity and enhanced efficiency from the A16 Bionic chip.

Battery Specifications

• iPhone 15:
  • Battery Capacity: 3,349 mAh
  • Battery Life: Approximately 11 hours and 5 minutes in web surfing tests.
• iPhone 14:
  • Battery Capacity: 3,279 mAh
  • Battery Life: Approximately 9 hours and 28 minutes in similar tests.

Comparison Overview

• The iPhone 15’s battery lasts about 1 hour and 37 minutes longer than that of the iPhone 14. This improvement is attributed to the larger battery size and more efficient processing capabilities of the A16 chip, which optimizes power consumption better than the A15 chip used in the iPhone 14.

Performance Insights

• In practical usage, both models can comfortably last through a full day of regular use. Users typically report finishing their day with around 20-30% battery remaining on both devices, although the iPhone 15 offers a bit more leeway due to its improved longevity.
• Streaming tests indicated that an hour of Netflix on the iPhone 15 consumes about 8% of battery, similar to the iPhone 14's performance.

Conclusion

Overall, while both models provide satisfactory battery life for daily use, the iPhone 15 offers a significant upgrade in endurance compared to the iPhone 14, making it a more reliable choice for users who prioritize battery longevity.