I checked and doped a cursory comparison of the 5 and 5c and they seem mostly the same other than talk time and case dimensions. There may be more, so here the links. But you don't really need to differentiate between the 5 and 5c. You can compare the 5 to the 5s directly also in Apple's Tech Specs
iPhone 5s - http://support.apple.com/kb/SP685
iPhone 5C -http://support.apple.com/kb/SP684
iPhone 5 - http://support.apple.com/kb/SP655
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iPhone 5 - http://support.apple.com/kb/SP655
Height: 4.87 inches (123.8 mm)
Width: 2.31 inches (58.6 mm)
Depth: 0.30 inch (7.6 mm)
Weight: 3.95 ounces (112 grams)
Talk time: Up to 8 hours on 3G
Standby time: Up to 225 hours
Internet use: Up to 8 hours on 3G, up to 8 hours on LTE, up to 10 hours on Wi-Fi
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iPhone 5C -http://support.apple.com/kb/SP684
Height: 4.90 inches (124.4 mm)
Width: 2.33 inches (59.2 mm)
Depth: 0.35 inch (8.97 mm)
Weight: 4.65 ounces (132 grams)
Talk time: Up to 10 hours on 3G
Standby time: Up to 250 hours
Internet use: Up to 8 hours on 3G, up to 10 hours on LTE, up to 10 hours on Wi-Fi