Why does my phone screen keep cracking?

If you have cracked your phone screen more than once, you are not just unlucky. There are real reasons why some phones crack more easily than others, and real things you can do to stop it happening again.

Why phone screens crack

Phone screens are made from hardened glass, usually Corning Gorilla Glass or Samsung's own equivalent. This glass is incredibly hard, which means it resists scratches well. But hardness and toughness are different things. The harder a material is, the more brittle it tends to be. That is why a phone screen can survive keys in your pocket without a mark but shatter from a waist-height drop onto concrete.

The physics are simple: when your phone hits a hard surface, the impact energy concentrates at the point of contact. Glass cannot flex to absorb that energy, so it cracks. The larger the screen, the more surface area there is to catch an impact, and the thinner the glass, the less energy it takes to break.

The biggest risk factors

• No case. This is number one by a long way. A case with a raised lip around the screen absorbs impact energy and keeps the glass from hitting the ground directly. We see at least twice as many cracked screens on caseless phones.
• No screen protector. A tempered glass screen protector acts as a sacrificial layer. It takes the hit instead of the actual screen. They cost $10 to $20 and can save you a $150+ repair.
• Bigger screens. The trend toward 6.5 to 6.9 inch screens means more glass, more weight, and more surface area to land on. Larger phones are also harder to grip with one hand, which makes drops more likely.
• Curved edge screens. Samsung's curved edge displays look great but crack more easily because the glass wraps around the side of the phone. A flat edge drop on a curved screen hits the glass directly, where a flat screen phone would hit the metal or plastic frame first.
• Existing micro-cracks. A phone that has been dropped before may have tiny stress fractures in the glass that you cannot see. These weak points mean the next drop does not need to be as hard to cause a visible crack.
• Temperature changes. Glass expands and contracts with temperature. Leaving your phone on the dashboard in summer and then taking it into air conditioning creates thermal stress. Over time, this weakens the glass.

How to stop cracking your screen

1. Use a case with a raised lip. The lip should extend at least 1mm above the screen on all sides. This means a flat face-down drop lands on the case, not the glass. OtterBox, Spigen, and UAG are reliable brands. Even a $20 case from the supermarket is dramatically better than nothing.
2. Fit a tempered glass screen protector. Not a plastic film. Tempered glass absorbs impact. When it cracks, your actual screen underneath is usually fine. Replace it when it cracks and you are back to full protection.
3. Use a phone grip or ring. PopSockets and phone rings give you a secure grip, especially when using your phone one-handed. Most drops happen when the phone slips out of your hand while walking or getting out of the car.
4. Keep it out of your back pocket. Sitting on your phone puts pressure on the screen. It might not crack immediately, but it creates stress points that make the next drop worse.
5. Be careful with magnetic car mounts. Some cheap mounts do not hold the phone securely. A phone falling off a dashboard mount onto the centre console can crack a screen, and it happens while you are driving so you cannot catch it.

Are some phones more durable than others?

Yes. iPhones with Ceramic Shield (iPhone 12 and newer) are noticeably tougher than older models. Samsung's Ultra models from the Galaxy S24 Ultra onwards have a flat screen and a titanium frame, which helps in a drop compared with the older curved-edge Ultras. Budget phones generally use weaker glass that cracks more easily.

That said, no phone screen is unbreakable. Even the latest Gorilla Glass Victus 2 will crack if it lands on the right (or wrong) angle on a hard surface. Cases and screen protectors are still your best defence.

Related reading: how long does a screen repair take?, aftermarket vs OEM screens, and phone repair vs insurance - which saves more? See screen repair pricing.