Xiaomi launched the Xiaomi 14 and 14 Pro in China in November and the brand is expected to launch the 14 Ultra in the Chinese market later this month. Although the Xiaomi 14 series has not yet been released in the global market, rumors about the Xiaomi 15 series have begun to be talked about. A new leak has revealed some details about the type of fingerprint sensor that will be seen in the Xiaomi 15 series.

According to a leak from Chinese tipster Smart Pikachu, the Xiaomi 15 Pro and Xiaomi 15 Ultra will have an in-display ultrasonic fingerprint scanner. It is unclear whether it will be on the Xiaomi 15, which suggests that it may be equipped with an optical in-display fingerprint sensor.

For those who don’t know, the ultrasonic variant uses sound waves to create a 3D map of the user’s fingerprints and offers a higher level of accuracy and security compared to its optical counterpart. This technology works great in harsh conditions, such as wet or dirty fingers, as it can penetrate surface imperfections.

Optical sensors, on the other hand, capture a two-dimensional image of a fingerprint using light, making them generally faster but potentially more susceptible to spoofing. While optical sensors have made significant advances in recent years, ultrasonic sensors generally provide more robust and reliable biometric authentication, especially in adverse environmental conditions.

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Latest reports have revealed that the Xiaomi 15 series will be powered by the Snapdragon 8 Gen 4 chipset. Xiaomi 15 may have a 6.36-inch 120Hz flat OLED display with 1.5K resolution support, while the 15 Pro may have a larger curved display. 2K resolution edges. It is rumored that the mass production of the Xiaomi 15 series may start in September this year, indicating that it could be released in October.