Xiaomi Mi3 vs Xiaomi Mi4 comparison:  Xiaomi has the record of best selling mobiles in the short budget line up and has increasingly  worked on its products and other pros and cons which were required by the company according to the demand of the market. Camera, Display and performance are the best in class in this price range. Lets have a comparable look below in details.
Xiaomi Mi3 vs Xiaomi Mi4 comparison
 | Xiaomi Mi3 | Xiaomi Mi4 |
Display | ||
Screen Size | 5 inch | Â 5 inch |
Resolution | 1920 x 1080 Â pixels | 1920×1280 Â pixels |
Pixel Density | Â 440 ppi | Â 440 ppi |
Software | ||
OS | Android | Android |
Version | Â 4.4.2 kitkat | Â 4.4.2 kitkat |
Up-Gradable |  Up-gradable to 5.0 |  Up-gradable to 5.0 |
Hardware | ||
Processor | Qualcomm Snapdragon 800 8274AB | Qualcomm Snapdragon 801 |
GHz | Â 2.3 Ghz | Â 2.5 GHz |
RAM | Â 2 GB | Â 3 GB |
GPU | Â 672 MHz, Nvidia ULP GeForce | MT6592 |
Camera | ||
Front | 2Â MP | Â 8 MP |
Rear | Â 13 MP | Â 13 MP |
Features | Back-illuminated sensor (BSI), Autofocus, Phase detection autofocus, Touch to focus, Optical image stabilization, Face detection, Exposure compensation, Burst mode, Digital zoom, Geo tagging, High Dynamic Range mode (HDR), Panorama, Self-timer | Back-illuminated sensor (BSI), Autofocus, Touch to focus, Optical image stabilization, Face detection, Smile detection, ISO control, Burst mode, Geo tagging, High Dynamic Range mode (HDR), Panorama, Voice activation |
Memory | ||
Internal | Â 16/32 GB | 16/32Â GB |
External | Â NO | Â NO |
Connectivity | ||
Wi-Fi | Â Yes | Â Yes |
Bluetooth | Â Yes | Â Yes |
NFC | Â Yes | Â Yes |
USB | Â Yes (Micro USB) | Â Yes (Micro USB) |
Battery | ||
mAh | 3050Â mAh | 3080Â mAh |
Stand-By | Â 16 hours | Â 22 hours |
Price | Â 5,000 INR | Â 19,999 INR |
Xiaomi Mi3 vs Xiaomi Mi4 comparison
Design and Display:
The Xiaomi Mi3 features a 5-inch display with a 1920 x 1080-pixel resolution with a pixel density of 440 ppi. While the other hand rival, The Xiaomi Mi4 features a 5 inch display with 1920 x 1080-pixel resolution with the pixel density of 440 ppi. That means that both the gadgets have almost same screen size and the same pixel density and the image resolution. Xiaomi Mi4 has higher than its rival in terms of screen size.
The Xiaomi Mi4Â gives you slightly more screen space, not only because it’s fractionally larger, but because the Mi3Â has on-screen controls with a border in the bottom.
Processor:
The Xiaomi Mi3 features a 2.3GHz Qualcomm Snapdragon 800 8274AB  with a  2GB of RAM. While the Xiaomi Mi4 features a  2.5 GHz quad core Qualcomm Snapdragon 801 as well as 3 GB of RAM. Which means that the Xiaomi Mi4 has a faster processor than the Xiaomi Mi3. And the RAM option makes a plus point for Xiaomi Mi4 and but the working is same which leads to choose over One plus one than Xiaomi.
Storage:
The Xiaomi Mi3 features 16 GB of on-board ROM with an option of a 32 GB variant on board ROM too. But the phone is not supported with a external SDcard Slot. While the Xiaomi Mi4 features 16/32 GB of on-board ROM with an option of a 32 GB variant on board ROM too. But the phone is not supported with a external SDcard Slot
Camera:
The Xiaomi Mi3Â features the same UltraPixel sensor (f/2.0 aperture) found in the original Xiaomi Redmi phones, although it’s a better all-round performer than before. It also has a Duo Camera for depth perception which means that there’s a range of fancy features on offer, and 2-megapixel (f/2.0 aperture) front-facing camera which is excellent for selfies. But the front camera is not an HD version but resembles a high quality camera and resolution.
On the second half, the Xiaomi Mi4 features a 13 megapixel sensor with fast 0.8 second capture speed. The Xiaomi Mi4 camera is also known for the best photography so the Xiaomi Mi4 takes the lead in terms of camera. The Xiaomi Mi4 smartphone can also capture Ultra HD video, something the Xiaomi mi3 is incapable of and there are a range of smart functions, including “selective focus” which produces similar to Xiaomi Redmi without the additional lens. This new added features lets you choose over Xiaomi Mi4.
Operating System:
The Xiaomi Mi3 features Android 4.4 KitKat and Sense 6.0. The Xiaomi Mi4 features the same android and a new version of MIUI 6. Both have same operating systems but the Xiaomi Mi3 has a bigger advantage of the Android 5.0 lollipop update. So the Xiaomi leads in operating system over Xiaomi Mi4.
Battery:
The Xiaomi Mi3Â features a 3050Â mAh battery that is supposedly 40 per cent more efficient than the first Xiaomi Redmi, which could last up to two days with even 3G services. However Xiaomi Mi3Â has added aggressive power saver options to make sure your device lasts the distance and it’s very impressive.
The Xiaomi Mi4Â features a 3080 mAh battery that will get you through the day. It also offers power saving features to match those of Xiaomi Mi4. Both devices are a step above the previous generation, giving much better endurance.
Conclusion whether which one is the best:
The Xiaomi Mi3 features a machined aluminium body that wraps around the sides making for a 90 per cent metal finish. There will be single color available: metallic grey. It’s a triumph of design, it looks stunning and feels sensational to hold.
The Xiaomi Mi4Â is mainly metallic, sticking to familiar design, but with a more tactile back for better grip. The big positives are that it is dustproof and resistant in liquid down to a metre in depth, and it’ll be available in black and white colors.
The Xiaomi Mi3 feels like the slicker device in daily use. The user interface is faster and although it has less options and features, the interface feels more sophisticated and mature. It offers class-leading sound quality, a great display, but the real winner is the design. In the battle of these two giants, Xiaomi Mi3Â takes it, but only just.
The Xiaomi Mi4Â offers a wider range of features and comes with great connectivity, a stunning display, plenty of power and a camera that performs well. However it feels like it could be faster in daily use and the unique features of the heart rate sensor and fingerprint scanner may well get turned off and ignored.
Price:
As per price, the Xiaomi Mi3Â is available at Rs 4,920 and the Xiaomi Mi4Â is available in India at a price tag of 19,999Â INR. The color variants are same for the devices.