Amongst the largest criticism of the first-generation devices were the activation size as well as the recognition speed of the sensor, something that Qualcomm is now addressing with the new 2nd generation design.

The new sensor is said to be 77% larger, now covering an area of 64mm² in a 8x8mm form-factor, compared to the 36mm² 4x9mm design of the first generation design.

The company states that this allows for 1.7x more biometric data, and the larger area should also help with more lax positioning of your finger when unlocking the phone.