Survey Plus Teardown of the Xiaomi Redmi A3 23129RN51H Smartphone
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The Xiaomi Redmi A3 has a 90Hz, 6.71-inch IPS LCD display with a resolution of 720 x 1650. The Redmi A3 has three cameras. The main one is an 8 MP Wide-Angle Rear Camera with an image sensor made by SmartSens, the second one is 0.08 MP QVGA Rear Camera with an image sensor made by SmartSens, and the last one is a 5 MP Wide-Angle Front Camera with an image sensor made by SmartSens. The device supports 10 W wired charging. The Xiaomi Redmi A3 23129RN51H saved on the Application/Baseband processor, using the MediaTek Helio G36, which is over $66 less than other application/baseband processors on average. The phone does not have 5G or MIMO WiFi. The Xiaomi Redmi A3 has two sensors: a 3-Axis MEMS Accelerometer and a 3-Axis Electronic Compass. There is also a virtual proximity sensor.
The RF design is based on Quad-Band GSM Power Amplifier and Multimode Multiband Power Amplifier from Skyworks, SP8T RF Switch were supplied by Maxscend, RF Antenna Tunner were designed by Maxscend, and Unknown manufacturer. Unembedded supporting components (filters, diplexer, duplexer, and triplexer) were supplied by Huying, Shoulder Electronics, Qualcomm, Taiyo Yuden, Wisol, and Unknown manufacturers.
