I'm thinking about purchasing an HTC DNA phone myself. Someone told me that Verizon gives you the ability to switch your number from one phone to the other. I'm thinking about buying it so I can swap from my iPhone 5 to the DNA at random times.
The DNA has the regular sized SIM card. While the i5 has a nano SIM. Unless you buy the adapter or already have it. You can't swap on the fly.
Injected with Venomous Viper DNA
The DNA has a micro SIM