You will find this hardware configuration in a wide range of generic and branded devices from 2007–2014. Common form factors include:
In practice, "S2" is a hardware profile. Two devices with the same Sunplus 1506HV chip but different S versions (S1, S2, S3) will , even if they look identical externally. Using the wrong version leads to inverted colors, mirrored screens, non-responsive buttons, or a black screen of death. sunplus 1506hv 4mb s2 full