Pros for the iphone 5c
.Durable, colorful, and fun polycarbonate design with little case "flex."
.Better front camera than the discontinued iPhone 5.
.Less expensive upfront than the iPhone 5s.
Cons for the iphone 5c
.Polycarbonate case is well built but some still may find the color choices and "plasticy" design tacky or otherwise undesirable.
.Rear camera is lower quality than the iPhone 5s.
.Cases and external batteries that work with the iPhone 5 and iPhone 5s are not physically compatible.
.Least expensive 8 GB models provide storage capacity that is inadequate for many users.
.Slower running iOS 9 or iOS 10 than iOS 8. No support for iOS 11 or later at all.
pros for the iphone 5s
.Thin, sleek, and light weight design with a durable, mostly aluminum back panel.
.High quality rear camera for a smartphone including dual LED "True Tone" flash and clever software.
.At least twice as fast as any previous iPhone models and 64-bit apps likely will be faster still in the future.
.Clever "Touch ID" biometric authentication option instead of a passcode.
.Compatible with iPhone 5 cases and external batteries.
.Still supports iOS 11, the current version of the iOS.
cons for the iphone 5s
.Aluminum back panel can be subject to scratches and dents and the upper and bottom back portions are glass that can
be cracked fairly easily.
.Camera lacks optical zoom.
.Performance improvement often is not detectable in day-to-day use over the iPhone 5, particularly for non-gamers.
.Slower than newer iPhone models.