Xiaomi Redmi 4 vs Xiaomi Redmi 9 Specs Comparison

Availability

Officially announced
Nov 04, 2016
Prices (MSRP)
$104

Design

Dimensions
5.56 x 2.74 x 0.35 inches 141.3 x 69.6 x 8.9 mm	6.43 x 3.03 x 0.36 inches 163.32 x 77.01 x 9.1 mm
Weight
5.50 oz / 156.0 g	6.98 oz / 198.0 g
Materials
Back: Metal
Biometrics
Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys, Notification light
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Gold, Gray, Silver	Carbon gray, Sunset purple, Ocean green

Display

Size
5.0-inch, 70.12% screen-to-body	6.5-inch, 83.27% screen-to-body
Type
IPS LCD	IPS LCD
Resolution
1280x720px, 294 PPI	2340x1080px, 19.5:9 ratio, 395 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 3
Features
	Oleophobic coating

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	1.5 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 430 8937	MediaTek Helio G80 (12 nm)
Processor
Octa-core 1400 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A75 and Arm Cortex-A55
GPU
Adreno 505	Mali G52 MC2
Memory
2GB (LPDDR3)/16GB	3GB (LPDDR4)/32GB (eMMC 5.1) 4GB/64GB
Storage expansion
microSDXC up to 128 GB	microSDXC
OS
Android (6.0 Marshmallow)	Android

Battery

Type
4100 mAh, Li - Ion	5020 mAh
Charging
	Qualcomm Quick Charge 3.0
Charge speed
	Wired: 18.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

9h 15min

Gaming

7h 3min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (PDAF) Aperture size: F2.2	13 MP (PDAF) Aperture size: F2.2
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2
Third camera
	5 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information)
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	1080p
Front
5 MP Video capture: 1080p	8 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
4.1	5.0
WLAN
a,b,g,n,dual-band Hotspot, Wi-Fi Direct 802.11 a, b, g, n	b,g,n Wi-Fi Direct, Hotspot 802.11 b, g, n
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
Tethering, Computer sync, OTA sync	NFC, Infrared

Discover more

Full Specs Xiaomi Redmi 4 Specs

Full Specs Xiaomi Redmi 9 Specs PA Review Xiaomi Redmi 9 Review

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD) Bands
	1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD) Bands
	38, 40, 41
3G Bands
	1, 2, 4, 5, 8
Data Speed
LTE-A, HSPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM, Micro SIM	Nano SIM
HD Voice
	Yes
VoLTE
	Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Alternative variants

with 64GB storage

Memory	4GB/64GB