I purchased this Xiaomi Mi A1( Gold) in September 2017.It will complete 3 years in next two months and I am still not looking forward to replace it.
Being a Chinese phone, people have this issue of unauthorised advertisements, but to my surprise, this phone in these 3 years has not shown me a single such ad.
Coming to the processor, it has Snapdragon 625 which works wonder for my usage which includes calling, texting and internet surfing.I can count on fingers how many times the screen gets hanged and it has not been more than 5 times in these three years.
About camera I will say is outdated, 12MP+ 12MP, 5MP front camera, which still is workable but dont expect a new social media display picture with this camera.
The full HD display in 5.5 inch decent screen is very impressive for a budget phone like Mi A1.
About the sensors, it has a fingerprint scanner, ambient Light Sensor, proximity sensor, E-compass, accelerometer, gyroscope and hall sensor.
Best of all, it has got very attractive slim body which makes the in hand feel of this phone very premium.