Xiaomi Redmi 3 vs Xiaomi Mi 4i vs Xiaomi Mi 4 Window Phone 10

BASIC INFO
Model No - - Mi 4 Window Phone 10
Status Discontinued Available. Released 2015, April Available
Release Date 2016, January 2015, April December 2015
Dimension 139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in) 138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) 139.2 mm hight 68.5mm widh 8.9 mm thiknes
Weight 144 g (5.08 oz) 130 g (4.59 oz) 149 grams
Colors Various Dark Gray, Black, White, Yellow, Blue, Pink Black/White
Body Metrial - - -
W & D Proof - - -
SIM Type Dual SIM (Micro-SIM/Nano-SIM, dual stand-by) Dual SIM (Micro-SIM, dual stand-by) Micro SIM Supported
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / HSPA / LTE GSM / HSPA / LTE
OS Android OS, v5.1 (Lollipop) Android OS, v5.0.2 (Lollipop) MicroSoft Windows 10
PROSESSING
Processor Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53 Quad-core 2.5 GHz Krait
Chipset Qualcomm MSM8939v2 Snapdragon 616 Qualcomm MSM8939 Snapdragon 615 Qualcomm MSM8974AC Snapdragon 801
GPU Adreno 405 Adreno 405 Adreno 330
MEMORY
RAM 2GB 2GB 3 GB
Storage 16GB 16/32GB 16 GB
Card Slot up to 128 GB (uses SIM 2 slot) No microSD, up to 64 GB
DISPLAY
Size 5 inches 5.0 inches 5 inches
Type IPS LCD capacitive touchscreen, 16M colors IPS+ LCD capacitive touchscreen, 16M colors IPS LCD capacitive touchscreen, 16M colors
Resolation 720 x 1280 pixels 1080 x 1920 pixels 1080 x 1920 pixels
PPI 294 ppi pixel density 441 ppi pixel density -
Multi touch Yes - MIUI 7.0 Yes Yes
Protection - Corning scratch-resistant glass, MIUI 6.0 -
CAMERA
Primary 13 MP, 4128x3096 pixels, Autofocus 13 MP, f/2.0, autofocus 13 MP
Video Yes, 1080p@30fps 1080p@30fps, 480p@120fps Yes,1080p@30fps
Flash LED flash Led flash LED Flash
Features Geo-tagging, touch focus, face/smile detection, HDR, panorama Geo-tagging, touch focus, face/smile detection, panorama, HDR Geo-tagging, touch focus, face detection, HDR, panorama
Selfie Yes, 5 MP 5 MP, f/1.8 Yes, 5 MP
BATTERY
Battery Li-po Li-Ion Li-Ion battery
Capacity 4100 mAh 3120 mAh 3080 mAh
Removable Non-removable Non-removable Non-removable
StandBy - - 280 Hours
Talk Time - Up to 35 h (3G) 41 Hours
Music Play - - -
Browsing - - -
Video Playback - - -
F Charging - - No
W Charging - - No
NETWORK
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 / 1900
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850, 900, 1800 and 1900 All Models, CDMA 800 / 1900 - Telecom 3G model 
3G Network HSDPA 850 / 1900 / 2100
TD-SCDMA
HSDPA 850 / 1900 / 2100
TD-SCDMA
TD-SCDMA 2010-2025 / 1880-1920 - 4G model HSDPA 850 / 900 / 1900 / 2100 - Unicom 3G model, Telecom 3G model, CDMA2000 1xEV-DO - Telecom 3G model 
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) TD-LTE 2570-2620 / 1880-1920 / 2300-2400
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps HSPA, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE, EV-DO Rev.A 3.1 Mbps, High Speed
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot
BlueTooth v4.1, A2DP v4.1, A2DP Yes, v4.0 E
USB Yes, microUSB v2.0 microUSB v2.0, USB Host Yes microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS
NFC - No -
Audio jeck - Yes, 3.5mm 3.5mm Jack
OTHERS
Sensors Accelerometer, gyro, proximity, compass Accelerometer, gyro, proximity, compass Accelerometer, proximity, compass Sensors
Radio Yes Stereo FM radio -
SARUS - - -
SAREU - - -
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