Samsung Galaxy J7 Duo vs. Xiaomi Redmi 8

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy J7 Duo and Xiaomi Redmi 8. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Samsung Galaxy J7 Duo vs. Xiaomi Redmi 8 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy J7 Duo Xiaomi Redmi 8
Product Type Smartphone Smartphone
Manufacturer Model Number SM-J720F -
Form Factor Touch Touch
Height 153.5 mm 156.5 mm Xiaomi Redmi 8 has greater height than Samsung Galaxy J7 Duo.
Width 77.2 mm 75.4 mm Samsung Galaxy J7 Duo has greater width than Xiaomi Redmi 8.
Depth 8.2 mm 9.4 mm Samsung Galaxy J7 Duo is narrower than Samsung Galaxy J7 Duo.
Weight 174 g -
Body Colour Black Sapphire blue
Protection - Splashproof
Waterproof (Water-resistant) - -
SAR Value 1.397 W/kg (body), 0.543 W/kg (head) 1.48 W/kg (body), 0.231 W/kg (head), 2.23 W/kg (limb)
Integrated Components - FM radio
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Samsung Galaxy J7 Duo Xiaomi Redmi 8
Display Type OLED display -
Display Technology HD Super AMOLED -
Screen Size (Display Size) 5.5" 6.22" Xiaomi Redmi 8 has larger screen size than Samsung Galaxy J7 Duo.
Screen Resolution (Display Resolution) 1280 x 720 pixels 1520 x 720 pixels Xiaomi Redmi 8 has better screen resolution than Samsung Galaxy J7 Duo.
Display Format HD HD+
Pixel Density - 270 ppi
Aspect Ratio - 19:9
Max Brightness - 400 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 1500:1
Display Enhancement Technology - Sunlight mode
Display Features - Reading mode, Colour temperature adjustment, night mode, Dot Drop display
Display Protection (Screen Protector) - Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Samsung Galaxy J7 Duo Xiaomi Redmi 8
Processor Type (CPU) - Qualcomm Snapdragon 439
Clock Speed 1.6 GHz 2 GHz Xiaomi Redmi 8 has higher clock speed than Samsung Galaxy J7 Duo.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) - Qualcomm ADRENO 505
MEMORY Samsung Galaxy J7 Duo Xiaomi Redmi 8
RAM 3 GB LPDDR3 SDRAM - 3 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 32 GB 32 GB Both phones have the same internal memory capacity.
User Memory 21.9 GB -
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC
CAMERA Samsung Galaxy J7 Duo Xiaomi Redmi 8
MAIN CAMERA
Number of Main Cameras 2 2
Sensor Resolution 13 Megapixel 12 Megapixel Samsung Galaxy J7 Duo has better camera resolution than Xiaomi Redmi 8.
Lens Aperture F/1.9 -
Focus Adjustment Automatic Automatic
Special Effects - HDR
Camera Modes - AI portrait mode, Landscapes, Night scenes, AI Beautify 4.0
Face Recognition (Face ID) - Face recognition Xiaomi Redmi 8 has face detection.
Light Source LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 60 fps
Camera Features (Functions) - Phase Detect Auto-Focus (PDAF), AI Dual camera, AI scene detection
SECOND CAMERA
Sensor Resolution (2nd Camera) 5 Megapixel 2 Megapixel Samsung Galaxy J7 Duo has better second camera resolution than Xiaomi Redmi 8.
Lens Aperture (2nd Camera) F/1.9 -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 8 Megapixel Both phones have the same front camera resolution.
Lens Aperture (Front) F/1.9 F/2.0 Samsung Galaxy J7 Duo has better front lens aperture than Samsung Galaxy J7 Duo.
Pixel Size (Front) - 1.12 μm
Special Effects (Front) - HDR
Camera Modes (Front) - AI portrait mode, AI Beautify 4.0
Face Recognition (Face ID) - Face recognition Xiaomi Redmi 8 has face detection.
Light Source (Front) - Display flash
Camera Features (Front) - Self-timer
BATTERY AND CHARGING Samsung Galaxy J7 Duo Xiaomi Redmi 8
Battery Capacity (Battery Size) 3000 mAh 5000 mAh Xiaomi Redmi 8 has larger battery capacity than Samsung Galaxy J7 Duo.
Fast Charging Technology - Qualcomm Quick Charge 3.0 Xiaomi Redmi 8 has fast charging technology.
Recharge Time (Charging Time) - 2.2 hour(s)
Standby Time - 625 hours
Talk Time 1200 minutes 1680 minutes Xiaomi Redmi 8 has longer battery life when making calls than Samsung Galaxy J7 Duo.
Run Time Details Active online usage (WCDMA): up to 11 hrs
Active online usage (LTE): up to 13 hrs
Active online usage (Wi-Fi): up to 13 hrs
Playback (video): up to 17 hrs
Playback (audio): up to 66 hrs
Talk (WCDMA): up to 1200 min
Standby: up to 625 hrs
Playback (audio): up to 180.5 hrs
Talk: up to 1680 min
Playback (video): up to 17 hrs
Navigation: up to 16.5 hrs
CELLULAR Samsung Galaxy J7 Duo Xiaomi Redmi 8
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Google Android -
Intelligent Assistant Bixby -
Navigation GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Samsung Galaxy J7 Duo Xiaomi Redmi 8
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1900 GSM, 2100 GSM
3G UMTS Band Band 1, Band 2, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 850, 900 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40
4G LTE Frequency FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac, ANT+/ANT IEEE 802.11b/g/n
Bluetooth Bluetooth 5.0 Bluetooth 4.2
Messaging Services SMS, MMS SMS, MMS
MEDIA Samsung Galaxy J7 Duo Xiaomi Redmi 8
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID AAC, PCM, MP3, FLAC, AAC +, APE (Monkey's Audio), AMR-WB, AMR-NB
Supported Digital Video Standards MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 MKV, MPEG-4, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP
Sound Enhancements - Large speaker box
FEATURES Samsung Galaxy J7 Duo Xiaomi Redmi 8
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, proximity sensor Accelerometer, ambient light sensor, digital compass, distance sensor
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader
Additional Phone Features - Infrared remote control, notification LED, AI face unlock
OTHERS Samsung Galaxy J7 Duo Xiaomi Redmi 8
Included Accessories Power adapter SIM card removal tool, USB-C cable, TPU case, 10W charger
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