In the light of the clamor over the iPhone 4 Grip of Death, AnandTech recently reverse-engineered the signal-strength-to-bars mapping for the iPhone 4. Because Android is open source, we can determine the corresponding mapping for Android in combination with the 3GPP spec referenced in the source, allowing the signal-strength-to-bars mapping for both Android and the iPhone 4 to be plotted on the same axes. This shows that the iPhone 4 consistently reports a higher percentage signal strength (as defined by the fraction of bars lit) than Android GSM devices at the same signal strength.