Accessories

Mobile accessories include any hardware that is not integral to the operation of a mobile smartphone as designed by the manufacturer, and adds utility to the mobile phone.

Cases, which are designed to attach to, support, or otherwise hold a smartphone, are popular accessories. Case measures are based on the display inches (e.g. 5 inch display). There are different types:

• Pouches and sleeves
• Holsters
• Shells
• Skins
• Fitted cases
• Bumpers
• Flip cases and wallets

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• Screen protection films
• Camera protection films
• Drop and shock protection
• Leather cases
• Cases with integrated kick stands
• Battery cases
• Cases with protection devices

Holsters are commonly used as third-party cases for devices, and/or are made of plastic and without exposed rigid corners. Heavy duty cases are designed to protect from drops and scratches.

A standing (or kickstand) case keeps the device standing upright. The collapsible kickstand of some horizontal cases holds the device in a flatter or steeper angle, depending on whether it is horizontally placed on a surface clockwise or counter-clockwise. The flat angle allows tapping without pushing the device over, while the steep angle is intended for watching.

Folio cases are a combination of a case and stand, and may include a keyboard (USB for OTG smartphones or bluetooth keyboard).

Third-party cases and design covers can serve for protection and personalization. These are the result of the relatively "naked" designs produced by manufacturers such as Apple, where the metal and glass components of the device are exposed and vulnerable to damage. They are distinct from holsters, in allowing use of the device while in the case, but in many instances include a belt clip or other device giving it the functionality of a holster. They are made of plastic, rubber, silicone, leather, or adhesive-backed vinyl pieces. Vinyl material may be calendered or cast, with the latter being more expensive. Calendered vinyl is expected to only be used for short-mid duration (10 years), while cast vinyl is used on a more long-term basis. Calendered vinyl also tends to shrink in the heat and can be shaped into any form (above 80 degrees Celsius), and may fade in direct sunlight.

Customized phone cases use custom printing. Different companies have different methods of printing on cases; some utilize sublimation, others Inkjet-printed skins, others dye-sublimation 3D printing methods.

Functional cases can integrate external batteries or a USB, bluetooth, or Wifi keyboard and touchpad.