Best Samsung Battery Life At A GlanceSamsung Galaxy S24 Ultra: 5000 mAh. 16 hours, 45 minutes.Samsung Galaxy S24+: 4900 mAh. 16 hours, 32 minutes.Samsung Galaxy S23 Ultra: 4855 mAh. ... Galaxy A54 5G: 5000 mAh, 11 hours, 46 minutes.Galaxy Z Fold5: 4270 mAh. ... Samsung Galaxy M51: 7000 mAh, 20 hours, 37 minutes.