Phone Comparison - Samsung Galaxy J3 (2017) vs Xiaomi Redmi 7A vs Samsung Galaxy A12

Price Comparison (India) - -

general General Info

Manufacturer Samsung Xiaomi Samsung
Announced June 2017 May 2019 2020, November 24
Status Available - June 2017 Available - June 2019 Expected Coming Soon - January 2021
Price Rs. 14,000 ($220.00) [Similarly Priced] Rs. 5,799 ($0.00) [Similarly Priced] Rs. 12,999 ($0.00) [Similarly Priced]
Colors Gold, Black, Pink Black, Blue Black, White, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 143.2 x 70.3 x 7.9 mm
(5.64 x 2.77 x 0.31 in)
146.30 x 70.41 x 9.55 mm
(5.76 x 2.77 x 0.38 in)
164 x 75.8 x 8.9 mm
(6.46 x 2.98 x 0.35 in)
Weight 148 g (5.22 oz) 150 g (5.29 oz) 205 g (7.23 oz)
SIM Type Dual-SIM Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE (unspecified)
Messaging SMS, MMS, EMail, IM
Build Features - -Splash resistant (P2i nano coating) - Fingerprint Sensor (side-mounted)
Notification LED No Yes -

hardware Hardware and OS

OS Android OS, v7.0 (Nougat) Android 9.0 (Pie) Android 10
User Interface TouchWiz MIUI 10 -
Processor Octa-core 1.4 GHz Cortex-A53, Exynos 7570 Quad Octa-Core (Quad 1.95GHz Cortex A53 + Quad 1.45GHz Cortex A53) , Qualcomm Snapdragon 439 Octa-core (2.3 GHz, 1.8 GHz)
GPU Mali-T720 MP2 Adreno 505 -
RAM 2 GB 3 GB 4 GB
Internal Memory 16 GB 32 GB 128 GB
External Memory microSD, up to 256 GB microSD, up to 256 GB (dedicated slot) microSDXC

display Display

Type Super AMOLED Capacitive Touchscreen IPS LCD HD+ Capacitive Touchscreen HD+ TFT display
Colors 16M colors 16M colors 16M Colour
Size 5.0 inches 5.45 inches 6.5 inches
Resolution 720 x 1280 pixels (294 ppi) 720 x 1440 pixels (295 ppi) 720 x 1560 pixels (264 ppi)
Screen-to-Body Ratio 68.33% 74.62% 83.64%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio FM radio Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP 13 MP 48 MP + 5 MP + 2 MP + 2 MP
Flash LED Flash LED Flash LED flash
Features AutoFocus, f/1.9 aperture, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama 13 MP, f/2.2, PDAF
HDR, Panorama
48 MP, f/2.0, (wide), AF
5 MP, f/2.2, 115˚ (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP, LED Flash [Similar] 5 MP, f/2.2, 1.12μm [Similar] 8 MP, f/2.2
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE, VoLTE HSPA 21.1/5.76 Mbps, LTE-A (2CA) Cat7 300/150 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.1, A2DP 5.0, A2DP, LE Yes
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Yes
USB microUSB v2.0 microUSB 2.0 USB Type-C 2.0
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser HTML5 Yes Yes

memory User Memory

Internal 16 GB, 2 GB RAM 32 GB, 3 GB RAM or 16 GB, 2 GB RAM 128 GB, 4 GB RAM or 64 GB, 4 GB RAM or 64 GB, 3 GB RAM or 32 GB, 3 GB RAM
Expandable Storage microSD, up to 256 GB microSD, up to 256 GB (dedicated slot) microSDXC
USB OTG Not Supported Supported Not Supported

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor not present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor not present
NFC NFC supported NFC not supported NFC not supported

battery Battery

Type Li-Ion Battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 2400 mAh 4000 mAh 5000 mAh
Stand by Up to 408 h - -
Talk Time Up to 23 h - -