I am using this product from past 6 months and it is just good build Quilty and lens are of good quility. The material used in this product are awesome, but this VR headset doesn’t come with head strap as it’s a google verified VR headset except this the product is really awesome.
It will easily adjust with 4.7 inch to 5.5 inch smart phones.
I recommend you to use FHD screen phones to get immersive and high definition viewing experience.
Note: Using this for long time ( more than 1 hour) phone heats like hell as it uses your phone CPU to work all sensors like gyroscope, compass, etc.