Xiaomi Redmi Smart Band Pro use eccentric rotating mass (ERM) Vibration Motor, even not smooth and strong like Linear Resonant Actuators (LRA, often found in samsung/apple device) but the vibration is more than good and can be set stronger only from the smart band Settings-Vibration and set to Strong instead Default. The noise is low because the motor soldered to the board, the noise is coming from strap ejector push button.

You only can set auto brightness in the band it self by going to Settings-Brightness and set Auto adjust to “On” position. You have 5 level brightness if you turn off the auto brightness. Whenever manual or auto brightness, the level 1 brightness is too high, compare to Mi Band, the level 1 on Xiaomi Redmi Smart Band Pro equal to level 3 on Mi Band, the amoled panel Xiaomi Redmi Smart Band Pro seem like Huawei Band 6 amodel panel. The light sensor located under amoled display, some time auto brightness affected by your watch face especially if your watch face is in light color, but its normal for under display light sensor.

Xiaomi Redmi Smart Band Pro seem likely use system on chip (SoC) microcontroller (MCU) Ambiq Micro AMA3B (Apollo 3 Blue) like Xiaomi Watch 2021 have. Xiaomi always calls the processor Apollo 3.5 but it’s actually Apollo 3 Blue. Ambiq Micro AMA3B using ARM Cortex-M4 Processor at 48 MHz nominal clock frequency, with 96 MHz high performance “TurboSPOT” Burst Mode, Integrated Bluetooth 5 low-energy module, up to 1 MB of flash memory for code/data, and up to 384 KB of low leakage RAM for code/data.

Yes! Xiaomi Redmi Smart Band Pro have light sensor for auto brightness, the light sensor located under amoled display, some time auto brightness affected by your watch face especially if your watch face is in light color, but its normal for under display light sensor. You only can set auto brightness in the band it self by goin to Settings-Brightness and set Auto adjust to “On” position. You have 5 level brightness if you turn off the auto brightness. Whenever manual or auto brightness, the level 1 brightness is too high, compare to Mi Band, the level 1 on Xiaomi Redmi Smart Band Pro equal to level 3 on Mi Band, the amoled panel Xiaomi Redmi Smart Band Pro seem like Huawei Band 6 amodel panel.

Yes! Xiaomi Redmi Smart Band Pro have auto brightness, the light sensor located under amoled display, some time auto brightness affected by your watch face especially if your watch face is in light color, but its normal for under display light sensor. You only can set auto brightness in the band it self by going to Settings-Brightness and set Auto adjust to “On” position. You have 5 level brightness if you turn off the auto brightness. Whenever manual or auto brightness, the level 1 brightness is too high, compare to Mi Band, the level 1 on Xiaomi Redmi Smart Band Pro equal to level 3 on Mi Band, the amoled panel Xiaomi Redmi Smart Band Pro seem like Huawei Band 6 amodel panel.

Yes! Xiaomi Redmi band pro always on display can be set/turn on for 24 hour. You can set only from smart band, go to Settings-Display-Always-on display and set to “On”, to make always on 24 hour you need to set always on display time Start 00:00 and End to 24:60 or 24:00 or 23.60, it seem weird, maybe just bug or to may you easy to make always on display 24 hour.

Yes! Xiaomi Redmi band pro have always on display. You can access it only from smartband, go to Settings-Display-Always-on display and set to “On”, additionally you can set always on time betwen 00:00 to 24:60 it seem weird, maybe just bug or to make you easy to make always on display 24 hour.