OPPO A15, October 2020 Android 10 phone, 6.52″, 2GB RAM, 32GB ROM, 13MP triple camera, 5MP selfie camera, Helio P35 chipset, 4230mAh battery.
OPPO A53s, 2020 Android 10 phone, 6.5″ 90H refresh rate, Snapdragon 640, 6GB RAM, 128GB ROM, 5000 mAh battery
OPPO A73 and A73 5G. 2020 Android 10 phones. They share the name, but have different screen sizes, camera configuration, processors, RAM, and batteries.