Display
Xiaomi Mi A3: 6.08-inch HD+ (720×1560 pixels) AMOLED display
Xiaomi Mi A2: 5.99-inch touchscreen that supports the 18:9 aspect ratio.
Redmi Note 7: 6.3-inch Full HD+ LCD display
Processor
Xiaomi Mi A3: Qualcomm Snapdragon 665
Xiaomi Mi A2: Qualcomm Snapdragon Octa-Core 660 CPU
Redmi Note 7: Qualcomm Snapdragon 660 processor
Rear camera(s)
Xiaomi Mi A3: Triple rear camera set up with 48-megapixel main 8-megapixel secondary and a 2-megapixel camera
Xiaomi Mi A2: Dual rear camera setup with 12MP main and 20MP secondary camera
Redmi Note 7: Dual rear camera setup with 12MP and 2MP sensors
Selfie camera
Xiaomi Mi A3: 32-megapixel
Xiaomi Mi A2: 20 MP front camera
Redmi Note 7: 13MP front-facing camera
RAM and storage
Xiaomi Mi A3: 4GB RAM with 64GB internal storage and 6GB RAM with 128GB internal storage
Xiaomi Mi A2: 4GB RAM with 128GB internal storage and 6GB RAM with 128GB storage
Redmi Note 7: 3GB RAM/32GB onboard storage, 4GB RAM/64GB internal storage
Support for microSD card
Xiaomi Mi A3: Up to 256GB
Xiaomi Mi A2: Up to 256GB
Redmi Note 7: Up to 256GB
Battery
Xiaomi Mi A3: 4030mAh battery
Xiaomi Mi A2: 3,010 mAh battery
Redmi Note 7: 4,000mAh battery
Operating system
Xiaomi Mi A3: Android 9.0 Pie with ColorOS 6 on top
Xiaomi Mi A2: Android 8.1 Oreo
Redmi Note 7: Android 9.0 Pie skinned with MIUI 10
Price
Xiaomi Mi A3: Rs 12,999
Xiaomi Mi A2: Rs 10,291
Redmi Note 7: Rs 9,999
Verdict
Lastly, we would like to say that Xiaomi Mi A3 is better than Redmi Note 7 and Xiaomi Mi A2 in all aspects whether it’s the camera capabilities, battery life, display screen, processor and so on. But, the price plays a major factor here too.
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