from what i do know, iphone 3 has a multitouch of at least 4-5 fingers, samsung s2 onwards have a multitouch of 10. Generally most touchscreen device that are not older than 5 years old would have a minimum of touchscreen 4. you might wanna download this app to test your phone's multitouch function https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester&hl=en .