This phone from Samsung has a 4,000 mAh battery. With a 2.9 GHz octa core processor, you get a lot of hardware for your money.
Samsung Galaxy S21 5G (128GB, Grey) AU - Excellent - Unlocked
Adorama
Samsung Galaxy S21 5G 6.2" 128GB 2-SIM GSM Smartphone, 8GB RAM, Unlocked, Pink