Features

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General
In The Box Handset, Adapter, USB Cable, SIM Ejector Tool  Handset, Charger, USB Cable, User Guide  Handset, Charging Cable, SIM Ejector Tool, Warranty Card,View More... Handset, Power Adapter, USB Data Cable, Ultra Thin Case,  View More...
Model Number MDI4O  MZB4427IN  MZB7745IN  MZB6876IN
Model Name Mi Max 2  Mi 4i  Redmi Note 7S  Redmi Note 6 Pro
Color Black  Yellow  Sapphire Blue  Black
Browse Type Smartphones  Smartphones  Smartphones  Smartphones
SIM Type Dual Sim  Dual Sim  Dual Sim  Dual Sim
Hybrid Sim Slot Yes No  Yes Yes
Touchscreen Yes Yes Yes Yes
OTG Compatible Yes Yes Yes Yes
Quick Charging Yes
Sound Enhancements Dual Speakers  Speaker: Single (Bottom Opening), 2 Microphones (for NoisView More... Speaker - Single (Bottom Opening), 2 x Microphones (Noise View More...
SAR Value 1.290 W/Kg 
Display Features
Display Size 16.36 cm (6.44 inch)  12.7 cm (5 inch)  16.0 cm (6.3 inch)  15.9 cm (6.26 inch)
Resolution 1920 x 1080 pixels  1920 x 1080 pixels  2340 x 1080 pixels  2280 x 1080 pixels
Resolution Type Full HD  Full HD  FHD+  FHD+
GPU Adreno 506  Adreno 405  Adreno 512  Adreno 509
Display Type IPS  IPS (In-cell), RD  IPS (In-cell)
Other Display Features Contrast Ratio: 1000:1  JDI Display, All New Sunlight Display, 441 PPI  Contrast Ratio: 1500:1 (Typical), 81.41% NTSC Ratio, GoriView More... Notch Display, Corning Gorilla Glass
OS & Processor Features
Operating System Android Nougat 7.1.1  Android Lollipop 5.0.2  Android Pie 9.0  Android Oreo 8.1
Processor Type Qualcomm Snapdragon 625 Octa Core 2 Ghz  2nd-gen Snapdragon 615 64-bit octa-core  Qualcomm Snapdragon 660 AIE  Qualcomm Snapdragon 636
Processor Core Octa Core  Octa Core  Octa Core  Octa Core
Primary Clock Speed 2 GHz  1.7 GHz  2.2 GHz  1.8 GHz
Secondary Clock Speed 1.8 GHz 
Operating Frequency GSM - 850 / 900 / 1800 / 1900 MHz, WCDMA - 850 / 900 / 19View More... GSM - 850, 900, 1800, 1900; WCDMA - 2100; 4G: LTE (FDD) -View More... GSM: B2, B3, B5, B8, WCDMA: B1, B2, B5, B8, 4G LTE-TDD: BView More... GSM - B2, B3, B5, B8, WCDMA - B1, B2, B5, B8, 4G LTE TDD  View More...
Memory & Storage Features
Internal Storage 64 GB  16 GB  32 GB  64 GB
RAM 4 GB  2 GB  3 GB  4 GB
Expandable Storage 128 GB  256 GB  256 GB
Supported Memory Card Type MicroSD  MicroSD  MicroSD
Memory Card Slot Type Hybrid Slot  Dedicated Slot  Hybrid Slot  Hybrid Slot
Call Log Memory Yes Yes
Phone Book Memory Yes
SMS Memory Yes
Camera Features
Primary Camera Available Yes Yes Yes Yes
Primary Camera 12MP  13MP  48MP + 5MP  12MP + 5MP
Primary Camera Features Aperture: f/2.2, Lens Elements: 6p, PDAF  Integrated Flash Support, Supports Beautify, Refocus, f/2View More... 48MP (GM1) - F1.79, 1.6 micrometer (4 in 1), 6P Lens (48MView More... 12MP - f/1.9, 1.4micrometer, Dual PD, 5MP - f/1.9 Apertur View More...
Secondary Camera Available Yes Yes Yes Yes
Secondary Camera 5MP  5MP  13MP  20MP + 2MP
Secondary Camera Features Aperture: f/2.0  f/1.8, 80 Degree Wide-angle View, HD (Front Facing CameraView More... F2.0 Aperture, 1.12 micrometer  f2.0
Flash Rear Flash  Rear Flash
HD Recording Yes Yes
Full HD Recording Yes Yes
Video Recording Yes Yes
Video Recording Resolution 1920 x 1080  1920 x 1080 
Frame Rate 30 fps 
Dual Camera Lens Primary Camera  Primary & Secondary Camera
Call Features
Phone Book Yes Yes
Connectivity Features
Network Type 4G VOLTE, 3G, 2G  4G, 3G, 2G  3G, 4G VOLTE, 4G, 2G  4G VOLTE, 4G, 3G, 2G
Supported Networks 4G VoLTE, 4G VoLTE  4G LTE, 4G LTE  GSM, WCDMA, 4G VoLTE, 4G LTE  4G VoLTE, 4G LTE, UMTS, WCDMA, GSM
Internet Connectivity 4G, 3G, Wi-Fi  4G, 3G, Wi-Fi, GPRS, EDGE  4G, 3G, Wi-Fi  4G, 3G, Wi-Fi
3G Yes Yes Yes Yes
Pre-installed Browser Android  MIUI Browser, Chrome Browser, Android 
Micro USB Port Yes
Bluetooth Support Yes Yes Yes Yes
Bluetooth Version 4.2  4.1  5.0  5
Wi-Fi Yes Yes Yes Yes
Wi-Fi Version 802.11 a/b/g/n/ac  802.11 a/b/g/n/ac  802.11a/b/g/n/ac  802.11a/b/g/n/ac
USB Connectivity Yes Yes Yes Yes
Audio Jack 3.5 mm  3.5mm  3.5mm
Map Support Google Maps  Google Maps  Google Maps  Google Maps
GPS Support Yes Yes Yes Yes
GPRS Yes
EDGE Yes
USB Tethering Yes
Infrared Yes
Other Details
Smartphone Yes Yes Yes Yes
SIM Size Micro SIM and Nano SIM  Micro SIM  Nano SIM + Nano SIM  Dual Nano SIM
SMS Yes Yes
SIM Access Dual Standby 
Sensors Ambient Light Sensor, Proximity Sensor, E-compass, AcceleView More... Gyroscope, Light Sensor, Accelerometer, eCompass, ProximiView More... Rear Fingerprint Sensor, Ambient Light Sensor, Proximity View More... Rear Fingerprint Scanner, Ambient Light Sensor, Proximity View More...
Other Features Type C USB  WLAN Support, Wi-Fi Direct, Wi-Fi Tethering, Voice CallinView More... Clock Speed/Cores/Bits: 4 x Gold 2.2 GHz + 4 x Silver 1.8View More... Body - Metal Back, IR Blaster, Charger - 5V/2A, Quick Cha View More...
Graphics PPI 342 PPI  409 PPI  403 PPI
User Interface MiUi 8  MIUI 6  MIUI 10 
User Memory 12.77 GB 
GPS Type A-GPS, GLONASS, BeiDou 
Multimedia Features
Audio Formats MP3  MP3 
FM Radio Yes
Battery & Power Features
Battery Capacity 5300 mAh  3030 mAh  4000 mAh  4000 mAh
Battery Type Li-Ion Polymer  Li-polymer 
Dimensions
Width 88.7 mm  69.6 mm  75.21 mm  76.4 mm
Height 174.1 mm  138.1 mm  159.21 mm  157.9 mm
Depth 7.6 mm  7.8 mm  8.1 mm  8.26 mm
Weight 211 g  130 g  186 g  181 g
Warranty
Warranty Summary Brand Warranty of 1 Year Available for Mobile  Brand Warranty of 1 Year Available for Mobile and 6 MonthView More... Brand Warranty of 1 Year Available for Mobile and 6 MonthView More... Brand Warranty of 1 Year Available for Mobile and 6 Month View More...
Features