According to a leak from a Weibo user Smart Pikachunext series Xiaomi 15 we could see a major upgrade in fingerprint scanning technology. The leak suggests that all three models Xiaomi 15, 15 Pro and 15 Ultra – could ditch the optical built-in fingerprint scanners of its predecessors and use ultrasonic fingerprint sensors.

Ultrasonic fingerprint technology is gaining popularity in the flagship phone market and brands like Samsung are using it in their high-end devices.

Unlike optical scanners that use light to read fingerprints, ultrasonic sensors use sound waves to create a more detailed 3D map of the fingerprint. This could potentially provide a number of benefits, including:

• Improved security: Ultrasonic sensors are considered more secure than optical scanners because they are less susceptible to attempts at forging photographs or hard copies.
• Better wet/dry performance: While optical scanners may struggle with wet or dirty fingers, ultrasonic sensors are said to work more reliably in a variety of conditions.
• Faster unlocking speed: Some reports suggest that ultrasonic sensors may offer faster unlock times compared to optical scanners.

Although the sensor has better accuracy and faster unlocking speed, it is also more expensive to implement.

Even though it was leaked Smart Pikachu, seems to indicate that all three models Xiaomi 15 Although it will receive the update, it is worth noting that this information has not been confirmed by Xiaomi.

There’s also no mention of the specific type of ultrasonic sensor being considered – some manufacturers use a “single point” solution, while others use a larger sensor area for potentially faster and more reliable unlocking.

The series is expected to be released Xiaomi 15 It will likely be launched in November, powered by the upcoming Snapdragon 8 Gen 4 chipset. While the official launch is still a few months away, we can expect more details and confirmations about the fingerprint technology and other features to emerge in the coming weeks.