The battery life of the iPhone SE 4 is expected to be significantly improved compared to its predecessor, as it will utilize a 3,279 mAh battery, which is the same capacity as the iPhone 14. This represents a substantial increase of over 1,250 mAh from the iPhone SE 3's 1,818 mAh battery. The enhanced battery capacity, combined with likely improvements in energy efficiency from a newer chipset, should lead to better overall battery performance for everyday use[1][4].
In contrast, the Samsung Galaxy A15 features a much larger 5,000 mAh battery. This larger capacity allows for impressive performance metrics: it achieves around 12 hours and 15 minutes on video streaming tests and an average screen time of approximately 6 hours and 43 minutes across various activities. In more intensive usage scenarios, like gaming and web browsing, it also shows strong results, averaging over 10 hours in these tests[2][5].
Overall, while the iPhone SE 4 is set to improve its battery life significantly over its predecessor, the Galaxy A15's larger battery gives it a clear advantage in terms of longevity and performance across various usage scenarios. The A15's capacity allows for longer usage periods before needing a recharge, making it potentially more suitable for users who prioritize battery life in their smartphones.
Citations:[1] https://www.macrumors.com/2023/12/06/iphone-se-4-reuse-iphone-14-battery/
[2] https://www.phonearena.com/reviews/samsung-galaxy-a15-5g-review_id6175
[3] https://nanoreview.net/en/phone-compare/samsung-galaxy-a15-4g-vs-apple-iphone-se-2022
[4] https://www.phonearena.com/news/iphone-se-4-battery_id164279
[5] https://www.gsmarena.com/samsung_galaxy_a15_5g-review-2671p3.php
[6] https://nanoreview.net/en/phone-compare/samsung-galaxy-a15-5g-vs-apple-iphone-se-2022
[7] https://www.reddit.com/r/iphone/comments/199pwzy/the_iphone_se_4_design_according_to_macrumors/
[8] https://www.dxomark.com/samsung-galaxy-a15-lte-battery-test/