This phone from Samsung has a 3,300 mAh battery. This model packs some great hardware with a 2.84 GHz octa core processor.
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SAMSUNG Galaxy Z Flip3 5G 8GB/256GB Green (Green) Dual SIM F711B
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Samsung Z Flip3 5G 6.7" 120Hz FHD+ 256GB GSM/CDMA Smartphone, Unlocked, Black