The edges of the device are clean, free of volume controls and a power button. The bottom edge of the phone has a 3.5mm headset jack, micro-USB port and a speaker and microphone.To undiscerning eyes, it can be quite hard to tell the difference between the G2 and the Galaxy S4.
One can argue that there is only so much you can do with the modern-day smartphone form factor, but then again HTC and Sony have very distinct designs.