Based on this product's specifications, here are some alternatives and similar models
Smartphone Xiaomi Redmi 15C 6.9" 256GB Blue
Summary description:
The Xiaomi Redmi 15C features a 6.9" display with a resolution of 1660 x 720 pixels, powered by a MediaTek Helio G81-Ultra processor. It offers 4GB of RAM and 256GB of internal storage, making it ideal for multitasking and storing large files. The dual rear camera with 50MP resolution captures stunning photos, while the 6000mAh battery ensures long-lasting performance. The smartphone is lightweight at 211g and comes in a stylish blue color.