That's right, the 5G model gets a 400-series chip. And slower charging - 33W for the 4G model, 18W for the 5G. Maybe the launch wasn’t planned quite like
Oppo A74 - Full phone specifications
OPPO A74 and OPPO A74 5G get a quiet launch across Asian markets - Gizmochina
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Oppo A74 And A74 5G Quietly Unveiled With Snapdragon 662 And 480 Chipsets News 05 Apr 2021
Oppo A74 and A74 5G quietly unveiled with Snapdragon 662 and 480 chipsets - news
Oppo A74 - Full phone specifications
Oppo A74 and A74 5G quietly unveiled with Snapdragon 662 and 480 chipsets - news
Oppo A74 5G review
Oppo A74 5G 6.5 Dual SIM 128GB 6GB RAM Snapdragon 480 5000mAh Phone By FedEx