Xiaomi Redmi 4a vs Samsung Galaxy J3 (2018) Specs Comparison

Design

Dimensions
5.51 x 2.77 x 0.33 inches 139.9 x 70.4 x 8.5 mm	5.62 x 2.76 x 0.35 inches 142.7 x 70.1 x 8.9 mm
Weight
4.64 oz (131.5 g)	5.36 oz (152.0 g)
Materials
Back: Metal	Back: Plastic
Features
Touch sensitive control keys, Notification light	Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Gold, Gray	Silver

Display

Size
5.0-inch	5.0-inch
Resolution
1280x720px, 294 PPI	1280x720px, 16:9 ratio, 294 PPI
Technology
IPS LCD	TFT
Screen-to-body
69.99 %	68.87 %
Colors
16 777 216	16 777 216
Features
Ambient light sensor, Proximity sensor	Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 425 8917 (28 nm)	Samsung Exynos 7 Quad 7570 (14 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Quad-core 1400 MHz ARM Cortex-A53
GPU
Adreno 308	Mali-T720 MP1
RAM
2GB (LPDDR3)	2GB
Internal storage
16GB	16GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 400 GB
OS
Android (6.0 Marshmallow), Xiaomi MI UI	Android (9.0 Pie, 8.0 Oreo)

Battery

Capacity
3120 mAh	2600 mAh
Type
Li - Ion

Camera

Rear
Single camera	Single camera
Main camera
13 MP (Autofocus) Aperture size: F2.2	8 MP (Autofocus, BSI sensor) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/4" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (30 fps) Video calling, Video sharing	1920x1080 (Full HD) (30 fps) Video calling, Video sharing
Front
5 MP, Video capture: 1920x1080 (Full HD)	5 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.1	4.2
WLAN
802.11 b,g,n Hotspot, Wi-Fi Direct	802.11 b,g,n Hotspot, Wi-Fi Direct
USB
microUSB, USB 2.0	microUSB, USB 2.0
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass
Other
Tethering, Computer sync, OTA sync	UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync

Multimedia

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

Cellular

4G (FDD)
Bands 3(1800), 5(850)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS)
4G (TDD)
Bands 40(2300)
3G
Bands 8(900), 1(2100)	Bands 5(850), 2(1900), 1(2100)
Data Speed
LTE-A, HSPA	LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, HSUPA, UMTS
Dual SIM
Yes
SIM type
Nano SIM, Micro SIM	Nano SIM
HD Voice
	Yes
VoLTE
Yes

Phone Features

Notifications
Haptic feedback	Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording	Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval
	Date approved: Apr 04, 2018 FCC ID value: A3LSMJ337A
Measured SAR
	Head: 1.22 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.18 W/kg

Buyers information

MSRP
$ 104
In The Box
	Charger and microUSB cable

Availability

Officially announced
Nov 04, 2016	Jun 07, 2018

Alternative variants

for AT&T Prepaid

Colors	Black

for Verizon

System chip	Samsung Exynos 7884A
Processor	Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53
4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c)
FCC approval	Date approved: May 07, 2018 FCC ID value: A3LSMJ337V
Measured SAR	Head: 1.14 W/kg Body: 0.92 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.17 W/kg

for Sprint and Boost Mobile

System chip	Samsung Exynos 7884A
Processor	Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53
4G (FDD)	Bands 25(1900+), 26(850+)
4G (TDD)	Bands 41(2600+)

for T-Mobile

4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)

Links

Full specifications
Xiaomi Redmi 4a Specs	Samsung Galaxy J3 (2018) Specs