Xiaomi Mi 5 4G Smart phone features with Snapdragon 820 CPU, 3GB RAM + 64GB ROM and 5.15 inch 1920 x 1080 screen, MIUI 7.1 OS, which promises quite a fast operation speed that quite amazing and impressive. 4.0MP front camera for convenient self-capturing, 16MP back camera for you to record every single moment clearly; 4G, GPS, Bluetooth, etc.

CPU:
Xiaomi Mi 5 with 3GB RAM + 64GB ROM, runs a powerful Qualcomm Snapdragon 820 processor. It's one of the fastest mobile processors available on the market today, and we were happy to see its inclusion in the Mi 5. The Snapdragon 820 is even faster than the 810 and has barely any negative press associated with it in comparison to its predecessor. With the use of  Adreno 530, gaming performance was also great on Xiaomi Mi 5. Overall, the combination of the latest in processors and GPUs has delivered an experience that’s fast, fluid and future-proof.

Appearance:
Xiaomi Mi 5’s premium aspects such as the curved glass found on the rear, contouring metal frame, and illusionary bezel-less display are strong indicators of the Xiaomi Mi 5’s flagship ranking. 

Screen:
Xiaomi Mi 5 along with a 5.15 inch 1080P panel, which is also one of the best we’ve seen, thanks to vibrant and saturated colors, deep blacks, great contrast, and excellent viewing angles. 

Camera:
Xiaomi Mi 5 equips with a great 16MP rear sensor that can record 4K video and takes great images. The dual-LED flash to the right of the camera module was helpful in evening out skin tones, and the 4-axis optical image stabilization worked well and helped reduce motion blur. While after the test, we had a little disappointing 4MP front-facing selfie camera.

Connectivity:
With 802.11ac Wi-Fi, Bluetooth 4.2 LE, NFC, and GPS with A-GPS, Xiaomi Mi 5 offers the connectivity options we expect from a flagship. Since it is an unlocked dual-SIM device, you can use two phone numbers simultaneously. Cellular data will be limited to HSPA+ within the U.S., as neither AT&T’s nor T-Mobile’s 4G LTE network is supported. 

Battery:
Xiaomi Mi 5 not only included a Qualcomm 3.0 fast-charging outlet in the box, however, as it offers excellent battery life to begin with. Its 3000mAh high-density battery allowed me to use the Xiaomi Mi 5 for a minimum of a full day of use. With lighter usage, I had no trouble exceeding the one and a half day mark.. 

Conclusion:
In a word, Xiaomi Mi 5 left a impressive impression with impressively designed, impressive in its battery life, and genuinely impressive in terms of power and performance. Remember that when you're choosing your next phone, because it's a rare commodity.
PROS:                                                                      CONS:
             Impressive display                                                Lack of U.S. 4G LTE support
             4-axis OIS is helpful                                               Low-light camera performance
             Relatively affordable                                             Boot-loader unlocking process is unwieldy
             Features an IR Blaster                                      
             Unmatched performance for the price
             Excellent design & solid build quality
             Good battery life with Quick Charge 3.0