Xiaomi Mi4i vs Xiaomi Redmi Y1

Key Specs

Battery
Battery	3120 mAh	3080 mAh
Display
Display	5.0 inches (12.7 cm)	5.5 inches (13.97 cm)
Front Camera
Front Camera	5 MP	16 MP
Processor
Processor	Qualcomm Snapdragon 615 MSM8939	Qualcomm Snapdragon 435 MSM8940
RAM
RAM	2 GB	4 GB
Rear Camera
Rear Camera	13 MP	13 MP

Battery

Capacity
Capacity	3120 mAh	3080 mAh
Quick Charging
Quick Charging	Yes, Quick	-
Removable
Removable	No	No
Standby time
Standby Time	-	Up to 240 Hours(3G)
TalkTime
TalkTime	-	Up to 32 Hours(3G)
Type
Type	Li-ion	Li-Polymer
USB Type-C
USB Type-C	No	No

Design

Build Material
Build Material	-	Case: Metal Back: Metal
Colours
Colours	Black, Blue, Pink, White, Yellow	Gold, Dark Grey
Height
Height	138.1 mm	153 mm
Thickness
Thickness	7.8 mm	7.7 mm
Weight
Weight	130 grams	153 grams
Width
Width	69.6 mm	76.2 mm

Display

Display Type
Display Type	IPS LCD	IPS LCD
Pixel Density
Pixel Density	441 ppi	267 ppi
Resolution
Resolution	1080x1920 px (FULL HD)	720x1280 px (HD)
Screen Protection
Screen Protection	Yes	Corning Gorilla Glass
Screen Size
Screen Size	5.0 inches (12.7 cm)	5.5 inches (13.97 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	71.54 %	71.36 %
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Autofocus
Autofocus	No	-
Camera Features
Camera Features	Wide Angle Selfie	-
Flash
Flash	No	-
Resolution
Resolution	5 MP, Primary Camera	16 MP f/2.0, Primary Camera

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General

Brand
Brand	Xiaomi	Xiaomi
Custom UI
Custom UI	-	MIUI
Launch Date
Launch Date	April 23, 2015 (Official)	November 15, 2017 (Official)
Operating System
Operating System	Android v5.0.2 (Lollipop)	Android v7.1.2 (Nougat)

Main Camera

Autofocus
Autofocus	Yes	Yes, Phase Detection autofocus
Camera Features
Camera Features	Digital Zoom Auto Flash Digital image stabilization Face detection Smile detection Touch to focus	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Camera Setup	Single	Single
Flash
Flash	Yes, Dual-color LED Flash	Yes, LED Flash
Image Resolution
Image Resolution	4128 x 3096 Pixels	4128 x 3096 Pixels
OIS
OIS	No	No
Resolution
Resolution	13 MP f/2.0, Primary Camera	13 MP f/2.2, Primary Camera(3" sensor size, 1.12µm pixel size)
Sensor
Sensor	CMOS image sensor	-
Settings
Settings	Exposure compensation, ISO control	Exposure compensation, ISO control
Shooting Modes
Shooting Modes	Continuous Shooting High Dynamic Range mode (HDR)	Continuous Shooting High Dynamic Range mode (HDR) Burst mode
Video Recording
Video Recording	1920x1080 @ 30 fps	1920x1080 @ 30 fps

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	Yes	Yes
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes, v4.1	Yes, v4.2
GPS
GPS	Yes with A-GPS, Glonass	Yes with A-GPS, Glonass
HDMI
HDMI	No	-
NFC
NFC	No	No
Network Support
Network Support	5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
SAR Value	Head: 1.29 W/kg, Body: 0.79 W/kg	Head: 1.092 W/kg, Body: 1.440 W/kg
SIM 1
SIM 1	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 1800(band 3) / 2600(band 7) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz 4G Speed: 50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4) GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
SIM 2	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 1800(band 3) / 2600(band 7) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM Size	SIM1: Micro, SIM2: Micro	SIM1: Nano, SIM2: Nano
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	microUSB 2.0	Mass storage device, USB charging, microUSB 2.0
VoLTE
VoLTE	-	Yes
Wi-Fi
Wi-Fi	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Wi-Fi Direct, Mobile Hotspot	Wi-Fi Direct, Mobile Hotspot

Performance

Architecture
Architecture	-	64 bit
CPU
CPU	Octa core (1.7 GHz, Quad core, Cortex A53 + 1.1 GHz, Quad core, Cortex A53)	Octa core, 1.4 GHz, Cortex A53
Chipset
Chipset	Qualcomm Snapdragon 615 MSM8939	Qualcomm Snapdragon 435 MSM8940
Graphics
Graphics	Adreno 405	Adreno 505

Sensors

Fingerprint Sensor
Fingerprint Sensor	No	Yes
Fingerprint Sensor Position
Fingerprint Sensor Position	-	Rear
Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Storage

Expandable Memory
Expandable Memory	No	Yes, Up to 128 GB
Internal Memory
Internal Memory	16 GB	64 GB
USB OTG
USB OTG	Yes	Yes