Xiaomi Redmi Note 4X vs Samsung Galaxy Note9 Specs Comparison

Availability

Officially announced
Feb 08, 2017	Aug 09, 2018
Prices (MSRP)
$145	6GB/128GB - $1000

Design

Dimensions
5.94 x 2.99 x 0.33 inches 151 x 76 x 8.45 mm	6.37 x 3.01 x 0.35 inches 161.9 x 76.4 x 8.8 mm
Weight
5.82 oz / 165.0 g	7.09 oz / 201.0 g
Materials
Back: Metal	Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
Fingerprint (touch)	Iris scanner, 2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys	Notification light, Stylus
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control, Lock/Unlock key; Right: Other
Colors
Black, Gold, Gray, Pink, Green	Midnight black, Ocean blue, Cloud silver, Lavender purple

Display

Size
5.5-inch, 72.78% screen-to-body	6.4-inch, 83.51% screen-to-body
Type
IPS LCD	Super AMOLED, HDR
Resolution
1920x1080px, 401 PPI	2960x1440px, 18.5:9 ratio, 516 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	2 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 625 8953 (14 nm)	Snapdragon 845 SDM845 (10 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core Kryo 385
GPU
Adreno 506	Adreno 630
Memory
3GB (DDR3)/32GB 3GB/16GB 4GB/64GB	6GB (LPDDR4)/128GB 8GB/512GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 512 GB
OS
Android (6.0 Marshmallow)	Android (10, 9.0 Pie, 8.1 Oreo)

Battery

Type
4100 mAh, Li - Polymer	4000 mAh, Li - Ion
Charging
	Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging

Camera

Rear
Single camera	Dual camera
Main camera
13 MP (CMOS image sensor, PDAF) Aperture size: F2.0	12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 Focal length: 26 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Second camera
	12 MP (Telephoto, OIS, Autofocus) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.4" Pixel size: 1 μm
Flash
Dual LED	LED
Video recording
1080p (30 fps), 720p (120 fps) Video calling, Video sharing	4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, EIS
Front
5 MP	8 MP (Wide Angle, Autofocus) Video capture: QHD (30 fps)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
a,b,g,n,dual-band Hotspot, Wi-Fi Direct 802.11 a, b, g, n	a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M4/T3
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	32-Bit DAC, Dolby Atmos
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
38, 39, 40, 41	38, 39, 40, 41, 46
3G Bands
5, 8, 2, 1	1, 2, 4, 5, 8
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA	LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
Dual SIM
Yes
SIM type
Nano SIM, Micro SIM	Nano SIM
HD Voice
Yes	Yes
VoLTE
Yes	Yes

Phone Features

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

Regulatory Approval

FCC approval
	Date approved: Jul 03, 2018 FCC ID value: A3LSMN960U
Measured SAR
	Head: 0.27 W/kg Body: 0.76 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.35 W/kg Phablet: 3.90 W/kg

Alternative variants

Memory	16GB

With 512 GB storage

Memory	8GB/512GB
Prices (MSRP)	$1250

System chip	MediaTek Helio X20 MT6797 (20 nm)
Processor	Deca-core 2100 MHz ARM Cortex-A72 and ARM Cortex-A53
GPU	Mali-T880 MP4
Memory	4GB/64GB

International version

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands	38, 39, 40, 41
Dual SIM	Yes
Location	GPS, A-GPS, Glonass, Galileo, BeiDou
FCC approval	Date approved: Jul 02, 2018 FCC ID value: A3LSMN960F
Measured SAR	Head: 0.23 W/kg Body: 0.85 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.40 W/kg Phablet: 3.98 W/kg

for Verizon

4G (FDD) Bands	2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28, 66
3G Bands	5, 8, 2, 1

for AT&T

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 14, 18, 19, 20, 28, 29, 30, 66

for T-Mobile

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 27, 66, 71
3G Bands	5, 4, 2, 1

for Sprint

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71

for U.S. Cellular

4G (FDD) Bands	2, 4, 5, 8, 12, 13, 18, 19, 25, 66, 71
4G (TDD) Bands	38, 39, 40, 46
3G Bands	5, 8, 2, 1

Discover more

Full Specs Xiaomi Redmi Note 4X Specs

Full Specs Samsung Galaxy Note9 Specs PA Review Samsung Galaxy Note9 Review