metallic material on device?

I have a material to which I added metallic ,base color = White ,and Roughness =0
On mobile preview or the iPad 2 device the material isn’t metallic like on the PC .
Tried adding Emissive Color and no directional light but the same situation,on mobile no metallic reflection.

I think this should work on mobile doesn’t seem like something very high end.

I’m using unreal 4.6.1.

Try to add a Sphere Reflection Capture in your map.