Review: Samsung Instinct
The Instinct uses touch resistance, not touch capacitance, for the main screen. This means you need to push the screen to get it to react. As with most phones that use this technology, I find it lacks the responsiveness and finesse possible with the technology used by the iPhone. You have to be blunt with the Instinct. This means pressure.
The haptic vibrations can be turned on or off, and in the end, I settled for off. The style of vibration used by the Instinct just didn't agree with me. This almost improved usability. You can alter the sensitivity of the touch screen in the settings menu, but even with it set to the highest sensitivity, I found the screen to be unresponsive about half the time.
The real killer, though, is that the Instinct will give you FALSE POSITIVE haptic feedback. The phone will buzz when you touch something, which is meant to confirm to you that the phone registered the press. But it didn't. The phone takes no action, even though it gives you feedback. This is a real failing of the touch technology used in this phone.
One action (opening a web page) took 10 presses before the screen registered the touch and opened the browser. It was common to have to tap things twice or thrice to muster a response from the Instinct.