This is a gameready model that has 100 triangles and 64 vertices, two textures 1024x1024 (diffuse, normal).
The textures are baked for the best performance, but I've attached a large archive file with high_poly model, so you can use it if you need it. You can open this file in any modern 3D editor.
I made a model in the Blender program, then made a highpoly in the Zbrush program, baked mesh maps and made textures in the Substance Painter program.
This model can be integrated into a mobile game, you can compress the textures even to 512x512 or even to 256x256. I tried to do as much a high-quality UV as I could using overlapping.
OBJ (OBJ, filesize: 7.11 KB), FBX (Autodesk FBX, filesize: 454 MB), GLTF (glTF, filesize: 6.18 MB), BLEND (Blender, filesize: 369 MB)