Based on this product's specifications, here are some alternatives and similar models
Smartphone OPPO 13 Pro 5G 6.83" 512 GB Graphite
Summary description:
The OPPO 13 Pro 5G features a 6.83" display with a resolution of 2800 x 1272 pixels. Powered by a MediaTek Dimensity processor at 3.35 GHz, it offers 12 GB of LPDDR5X RAM and 512 GB of internal storage. The triple rear camera has a 50 MP resolution, and the device supports Dual SIM. With Android 15 and a robust 5800 mAh battery, it ensures long-lasting performance. Available in Graphite, Grey, and Purple, it weighs 195 g.