Check out Old Green Phone Low-poly 3D model on CGTrader for $5. High-quality mesh by AssetSmith: 3092 polys, 3132 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 533 KB), FBX (Autodesk FBX, filesize: 45.4 MB), MAX (Autodesk 3ds Max, filesize: 3.23 MB)