One of the big controversies surrounding the launch of the iPhone 4 was related to its antenna design. Several customers reported issues with significant signal loss when holding their iPhone in a natural way.
The iPhone 4S is known to have significant antenna upgrades, allowing it to switch antennas to maximize their signal.
Early testing and reports from iPhone 4S users seem to show that the signal drop from tightly gripping the iPhone has been diminished or even eliminated.
Check out the video after the break…