The A-series of phones has consistently been better than the "full" phones. They have a headphone jack; are usually slightly smaller; are much cheaper; the back

The A-series of phones has consistently been better than the "full" phones. They have a headphone jack; are usually slightly smaller; are much cheaper; the backs are sometimes made out of better materials (glass is the worst material for a phone back). You'd be a fool not to wait for the 5A's improvements.