• Get a Screen Protector. Modern smartphones typically include scratch- and impact-resistant screens made from Gorilla Glass or something similar. ...
• Use a Case. 
• Keep Your Smartphone Dry. 
• Avoid Extreme Temperatures.

Metal phone casescan protect your phone from falls and scratches. However, it tends to be heavier than other materials, and the metal can affect the wireless charging capabilities of a phone due to its magnetic shielding properties.

Hard Plastic
PC is more rigid and hard, while TPU is slightly softer and more flexible (but still not as soft as silicone and rubber). Both of these types of plastic are great at maintaining their shape, making them a durable option for people who are tough on theirphone cases

What type of case is best for a phone? Hard plastic is considered to be the best protective cover for a phone case. The polycarbonate plastic used to make it is the best plastic to use forphone cases. It's tough and lasting and protects your phone from unwanted scratches

The Different Types of iPhone Cases Explained

• Plastic iPhone cases are the most common, and it's the first case that comes with your iPhone. 
• The biggest highlight for leather phone cases is that they age well over time.
• Carbon Fiber Phone Case
• Flip Phone Case
• Hard Core Phone Case
• Transparent Phone Case

MagSafe iPhone caseswork by attaching to the back of your iPhone via a built-in magnet. Once attached, they charge your phone wirelessly using the MagSafe charging standard. MagSafe is a proprietary wireless charging standard developed by Apple.
A MagSafe case (or MagSafe "enabled") will have an OEM magnet array inside it that will help strengthen your attachment to your other MagSafe accessories like a wallet or charger. Without a MagSafe enabled case, the magnets in your phone will be farther from the accessory and the magnetic hold won't be as strong.

MagSafe cases and sleeves contain magnets that align iPhone (supported models) with MagSafe chargers and battery packs. You can even hold and use iPhone while it's charging. See MagSafe chargers and battery packs for iPhone.

To protect your Samsung Galaxy Z Fold 3 from scratches and dents, we'd advise that all smartphones should have a case or a cover.

• Just like its elder sibling, the Galaxy Z Flip 4's main display uses Ultra Thin Glass (UTG). Since it's a "foldable" display, it's not rigid or durable as traditional glass panels. The pre-applied screen protector ensures the Ultra Thin Glass stays protected at all times from accidental bumps or sharp objects.
• Removal of the Galaxy Z Flip screen protector itself will not cause any screen damage as the screen protector has low adhesive power. However, damage may be caused if you press the display while lifting the parting line.
• Do not remove the screen protector film. It is recommended that you do not remove the screen protector film, and do not install other films or stickers, as doing so may cause device damage. Unapproved screen protectors may cause the sensors to malfunction.

So if you're planning to buy the Samsung S23 Ultra, you'll want to consider purchasing some extra accessories,For example:samsung galaxy s23 ultra case. Unfortunately, over the years Mobile device companies are reducing what comes in the box. They have gotten rid of earphones, chargers, cases and who knows what will go next?