Gorilla Glass Generation

Gorilla glass is a brand is specialized toughened glass developed and manufactured by Corning Inc. 

It is light, thin, scratch and cracks resistant. It is mainly used as a cover glass for smartphones, tablets, smart watches, television screens, etc."

"During its manufacture, the glass is toughened by ion exchange. The material is immersed in a molten alkaline potassium salt at a temperature of approximately 400 °C (750 °F), wherein smaller sodium ions in the glass are replaced by larger potassium ions from the salt bath. The larger ions occupy more volume and thereby create a surface layer of high residual compressive stress at the surface, giving the glass surface increased strength, ability to contain flaws, and overall crack-resistance, making it resistant to damage from everyday use.

"Gorilla glass versions :

Gorilla glass 1 - 

• Introduced in 2007 with iPhone 3GS.

• It had high scratch resistance than plastic screen covers of that time.

• 1.5 mm to 2 mm in thickness.

Gorilla glass 2 -

• Introduced in 2012.

• 20 % thinner than gen 1.

• 20 % increase in damage resistance than gen 1.

Gorilla glass 3 -

• Introduced in 2013.

• Introduced native damage resistance.

• 3 times more damage resistance.

• 40 % improved scratch resistance.

• Less brittle and tougher than gen 2.

• More flexible

• Has silver ion doping which is anti-bacterial.

Gorilla glass 4 -

• Introduced in 2014.

• 80 % survival rate on dropping from a 1-meter height on a hard surface.

• More flexible than Gorilla glass 3.

• 125 % increase in compression layer depth.

• Higher resistance to cracking and crack propagation.

Gorilla glass 5 -

• Introduced in 2016.

• More damage resistance.

• 80 % survival rate on dropping from a 1.6-meter height on a rough surface.

• Improved drop performance

• High retained strength after use

• High resistance to scratch and sharp contact damage

• Superior surface quality

Gorilla glass 6 -

• Introduced in 2018.

• 80 % survival rate on dropping from a 4-meter height on a rough surface.

• Survival rate is 1.5X better than Gorilla glass 5

• Survived 15 consecutive drops from 1 meter onto rough surface.

• Increased drop height performance

• 2X time better than Gorilla glass 5

• High resistance to scratch and sharp contact damage

• Better wireless charging