Heralded as the "most forward-thinking smartphone in the world" at the time of its introduction, the iPhone 5s models, regardless of network compatibility, have a 4" (diagonal) widescreen multi-touch IPS LED-backlit 1136x640 native resolution (326 ppi) "retina display," dual cameras -- a rear 8 megapixel, 1080p "iSight" camera with 1.5 micron pixels, an f/2.2 aperture, a dual LED "True Tone" flash and more as well as a front 1.2 megapixel, 720p "FaceTime" camera.
The iPhone 5s is available in three metallic color options -- "space gray," which has a black glass front and a mostly medium toned "gunmetal" gray aluminum back; "gold," which has a white glass front and a mostly gold colored aluminum back; and "silver," which has a white glass front and a mostly silver colored aluminum back (gold color option discontinued September 9, 2015). Regardless of color, each includes a "Touch ID" fingerprint sensor embedded in the "home" button (which no longer has the traditional iPhone rounded square icon like earlier models).
This iPhone 5s model is powered by a 1.3 GHz 64-bit "Apple A7" processor and has 1 GB of LPDDR3 RAM and 16 GB, 32 GB, or 64 GB of flash storage (64 GB option discontinued September 9, 2014). It also supports both 2.4 GHz and 5 GHz 802.11n Wi-Fi, Bluetooth 4.0, and 4G/LTE, has a bottom-mounted headphone jack and uses the "Lightning" connector to hook up with a Mac, PC, dock, or power adapter.
A 3mth warranty is included for your peace of mind.