Get in Touch with Saiweiglass
Comparing Cover Glass Materials
Material Trade-Offs
Compare scratch resistance, optical transmission, minimum thickness, and cost profile from the pillar-page data.
Cover Glass Material Comparison
This comparison stays inside the values already published on the page: soda-lime tempered at roughly 91% transmittance and 1.8mm minimum thickness, chemically strengthened aluminosilicate at >=92% and 0.33mm minimum, sapphire at Mohs 9 with higher brittleness under sharp-point impact, and Dragontrail as a comparable aluminosilicate route.
Soda-Lime Tempered
Cost-ledScratch
Mohs ~5.5
Optics
~91% transmittance
Minimum Thickness
~1.8mm safety minimum
Cost Profile
Low
Aluminosilicate, Chemically Strengthened
Balanced winnerScratch
Mohs 6.5-7
Optics
>=92% transmittance
Minimum Thickness
0.33mm
Cost Profile
Medium
Sapphire Crystal
Premium scratchScratch
Mohs 9
Optics
~85% transmittance
Minimum Thickness
0.3mm, expensive to cut
Cost Profile
Very high
Dragontrail Glass
Alternative routeScratch
High, comparable to Gorilla-class aluminosilicate
Optics
>=92% transmittance
Minimum Thickness
0.33mm
Cost Profile
Medium
For most wearable OEM programs, chemically strengthened aluminosilicate is still the best starting point because it combines thinness, >=92% transmittance, and manageable cost.
