How does the battery efficiency of the Galaxy S24 Ultra compare to other flagship phones

Battery Life Performance

- Galaxy S24 Ultra: Achieved 16 hours and 45 minutes in benchmark testing, placing it second among flagship phones. Its efficiency stems from the Snapdragon 8 Gen 3, which allows it to outperform devices with larger batteries, such as the Pixel 8 Pro[1][5].
- OnePlus 12: Leads with a 5,400 mAh battery, lasting 17 hours and 41 minutes in tests.
- iPhone 15 Pro Max: With a smaller 4,422 mAh battery, it reached 14 hours and 2 minutes, showcasing the efficiency of Apple's A17 Pro chipset.
- Pixel 8 Pro: Managed only 10 hours and 3 minutes despite having a 5,050 mAh battery, indicating less efficient power management compared to its competitors[1][5].

Charging Efficiency

- The Galaxy S24 Ultra supports 45W fast charging, achieving 71% charge in 30 minutes, which is commendable but slightly behind the OnePlus 12 that reaches full charge in that time[1][5].
- In a quick charge test, it gained only 39% in 15 minutes, reflecting decent but not top-tier performance compared to others like the OnePlus 12[1][5].

Efficiency Metrics

- The S24 Ultra scored a charge-up efficiency of 75.7%, which is relatively lower compared to some competitors but still indicates effective energy use during charging[1].
- Its discharging currents were noted to be low during various usage scenarios, contributing positively to overall battery longevity during active use[1].

Summary of Key Comparisons

| Phone | Battery Size | Battery Life (Hrs:Min) | Charge in 30 Min (%) | Charge in 15 Min (%) |
|----------------------|--------------|-------------------------|-----------------------|-----------------------|
| OnePlus 12 | 5,400 mAh | 17:41 | 100% | 60% |
| Galaxy S24 Ultra | 5,000 mAh | 16:45 | 71% | 39% |
| iPhone 15 Pro Max | 4,422 mAh | 14:02 | 41% | 20% |
| Pixel 8 Pro | 5,050 mAh | 10:03 | 59% | 29% |

In conclusion, while the Galaxy S24 Ultra ranks high for battery life and charging efficiency among flagship devices, it faces stiff competition from models like the OnePlus 12. Its balance of capacity and power management makes it a strong contender in the premium smartphone market.