This is my review after using the mi note 3 for 4 months, till now I have never faced any lag or heating issues thanks to xiaomi for the hardware specs, 3 GB Ram just runs so smooth no problem in gaming or multitasking.
The Fingerprint is just so awesome very fast just one touch and it unlocks, speaker quality is also very awesome, loud n clear, it comes wiith a 5.5 inch Sunlight Display, so bright n crisp best for gaming and watching movies I am using the gold color 3gb ram 32 gb internal mem model.