Phone Accessories: Connectors and Compatibility

Connector first: USB-C, Lightning or 3.5 mm

Wired accessories depend on the phone's port. USB-C is now the common connector, Lightning remains on older iPhones, and the 3.5 mm headphone jack has disappeared from many handsets, which is why adapters appear in listings. Check what your phone has before choosing a wired headset or charger. Items listed for Universal or all touch-screen devices suit most phones; those listed for one brand or model may depend on its connector or software.

Which accessory solves which problem

Match the accessory to the problem. Weak signal indoors points to a booster with an outdoor antenna, which must support the bands of your carrier. A cracked screen or worn battery points to repair parts, and handwritten notes point to a stylus. Earbuds and headsets add hands-free calls, and wall chargers differ by output wattage and plug type. See Styluses & Digital Pens and Earbuds & Wired Headsets for the details of each.

Questions about Phone Accessories: Connectors and Compatibility

Will a USB-C headset work with any phone?

Most do, but USB-C audio comes in two forms. A headset with a built-in digital converter works on nearly any USB-C phone, while a passive one relies on the phone's analogue audio support, which not every model has.

What does a cell signal booster need to work?

It needs some outside signal to amplify, an outdoor antenna placed where that signal is strongest, and an indoor antenna kept well away from the outdoor one to avoid feedback. Choose a model that supports your carrier's frequency bands.

Are universal styluses fine for all touch screens?

A basic capacitive stylus with a rubber or mesh tip works on nearly any capacitive screen. Pressure sensitivity, tilt and palm rejection come only from active pens designed for a particular tablet or phone.