Rezound's screen is 720p compared to Razr's 540p
Rezound's screen is SLCD compared to a pentile SAMOLED on the Razr.
The Rezound has the most pixels per inch of any phone in the world. The Razr has the least of all the new smartphones.
Rezound has an extended battery available compared to non removable battery on the Razr
The camera on the Rezound has dual LED flash compared to single LED flash on Razr
The camera on the Rezound has a 2.2f aperture capable of better pictures in lower light.
The Rezound take the best quality photos of any phone available in America. Photos taken on the Razr look washed out and have a greenish tint.
The Rezound is thicker, but not as wide as the Razr,
The Rezound feels better in the hand to me and to every person I know that has held both.