Xiaomi Redmi 3S vs. Samsung Galaxy A9 (2018)

Phone Comparison, Reviews and Tests

Detailed comparison and review of Xiaomi Redmi 3S and Samsung Galaxy A9 (2018). With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

Xiaomi Redmi 3S vs. Samsung Galaxy A9 (2018) Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A920F/DS
Form Factor Touch Touch
Height 139.3 mm 162.5 mm Samsung Galaxy A9 (2018) has greater height than Xiaomi Redmi 3S.
Width 69.6 mm 77 mm Samsung Galaxy A9 (2018) has greater width than Xiaomi Redmi 3S.
Depth 8.5 mm 7.8 mm Samsung Galaxy A9 (2018) is narrower than Xiaomi Redmi 3S.
Weight 144 g 183 g Xiaomi Redmi 3S is lighter than Xiaomi Redmi 3S.
Body Colour Gold Lemonade blue | Caviar black | Bubblegum pink
Body Material Metal -
Waterproof (Water-resistant) - -
SAR Value 0.43 W/kg (body), 0.62 W/kg (head) 1.587 W/kg (body), 0.351 W/kg (head)
Connector Type Micro-USB - 5 pin Micro-USB Type B USB Type-C - 24 pin USB-C
SIM Card Type (Size) Micro SIM, nano SIM Nano SIM
SIM Card Qty Dual-SIM Single-SIM
SIM Card Configuration Details Micro SIM + nano SIM/microSD -
DISPLAY Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Display Type - OLED display
Display Technology - Super AMOLED
Screen Size (Display Size) 5" 6.3" Samsung Galaxy A9 (2018) has larger screen size than Xiaomi Redmi 3S.
Screen Resolution (Display Resolution) 1280 x 720 pixels 2220 x 1080 pixels Samsung Galaxy A9 (2018) has better screen resolution than Xiaomi Redmi 3S.
Display Format HD Full HD+
Colour Depth - 16.7 million colours
Display Features - Always-on display
PROCESSOR Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Processor Type (CPU) Qualcomm Snapdragon 430 Qualcomm Snapdragon 660
Clock Speed 1.4 GHz 2.2 GHz Samsung Galaxy A9 (2018) has higher clock speed than Xiaomi Redmi 3S.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 505 -
MEMORY Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
RAM 2 GB 6 GB Samsung Galaxy A9 (2018) has more RAM than Xiaomi Redmi 3S.
Internal Memory Size (Storage Capacity) 16 GB 128 GB Samsung Galaxy A9 (2018) has more internal memory than Xiaomi Redmi 3S.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 128 GB microSDHC, microSDXC - up to 512 GB
CAMERA Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 13 Megapixel 24 Megapixel Samsung Galaxy A9 (2018) has better camera resolution than Xiaomi Redmi 3S.
Lens Aperture F/2.0 F/1.7 Samsung Galaxy A9 (2018) has better lens aperture than Xiaomi Redmi 3S.
Lens Construction 5-element -
Focus Adjustment Automatic Automatic
Special Effects HDR -
Camera Modes Panorama, manual mode -
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) -
Camera Features (Functions) Phase Detect Auto-Focus (PDAF) -
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.4
THIRD CAMERA
Sensor Resolution (3rd Camera) - 10 Megapixel
Lens Type (3rd Camera) - Telephoto lens
Lens Aperture (3rd Camera) - F/2.4
Optical Zoom - 2x
FOURTH CAMERA
Sensor Resolution (4th Camera) - 5 Megapixel
Lens Aperture (4th Camera) - F/2.2
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 24 Megapixel Samsung Galaxy A9 (2018) has better front camera resolution than Xiaomi Redmi 3S.
Lens Aperture (Front) F/2.2 F/2.0 Samsung Galaxy A9 (2018) has better front lens aperture than Xiaomi Redmi 3S.
Camera Modes (Front) Beautify Selfie mode -
Face Recognition (Face ID) Face recognition - Xiaomi Redmi 3S has face detection.
Video Resolutions (Front) 1920 x 1080 (1080p) -
BATTERY AND CHARGING Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Battery Capacity (Battery Size) 4100 mAh 3800 mAh Xiaomi Redmi 3S has larger battery capacity than Samsung Galaxy A9 (2018).
CELLULAR Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System - Android 8.0 Oreo
User Interface MIUI V7 -
Intelligent Assistant - Bixby
Payment Technology - Samsung Pay
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE
2G Band 900 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
4G LTE Band Band 3, Band 5, Band 40 -
4G LTE Frequency FDD 1800+, FDD 850, TDD 2300 -
Wireless Interface IEEE 802.11b/g/n IEEE 802.11a/b/g/n/ac, ANT+/ANT
Bluetooth Bluetooth 4.1 Bluetooth 5.0
Bluetooth Profiles HID -
NFC - Yes Samsung Galaxy A9 (2018) has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Supported Digital Audio Standards AAC, PCM, MP3, FLAC, AC-3, AAC +, eAAC+, MIDI WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, VC-1, XviD, MPEG-4, ASF, DivX, MPEG-2, H.264, H.263, M4V, VP8, Sorenson Spark MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2
FEATURES Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
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 Ambient light sensor, proximity sensor, digital compass, gyro sensor, gravity sensor Accelerometer, proximity sensor, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor
Security Devices - Face recognition, fingerprint reader
Additional Phone Features Infrared remote control, Reading mode MIMO technology, Bixby Vision
OTHERS Xiaomi Redmi 3S Samsung Galaxy A9 (2018)
Included Accessories USB cable, power adapter, SIM card removal tool Power adapter
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