Samsung Galaxy A21s vs. Motorola Moto G31

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy A21s and Motorola Moto G31. 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 A21s vs. Motorola Moto G31 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A21s Motorola Moto G31
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A217F/DSN -
Form Factor Touch Touch
Height 163.7 mm 161.89 mm Samsung Galaxy A21s has greater height than Motorola Moto G31.
Width 75.3 mm 73.87 mm Samsung Galaxy A21s has greater width than Motorola Moto G31.
Depth 8.9 mm 8.55 mm Motorola Moto G31 is narrower than Samsung Galaxy A21s.
Weight 192 g 181 g Motorola Moto G31 is lighter than Samsung Galaxy A21s.
Body Colour White | Blue | Black Mineral grey | Baby blue
Body Material - Plastic
Waterproof (Water-resistant) - -
SAR Value 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) 1.46 W/kg (body), 0.67 W/kg (head)
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details - Nano SIM + nano SIM/microSD
DISPLAY Samsung Galaxy A21s Motorola Moto G31
Display Type LCD display OLED display
Display Technology PLS TFT OLED
Screen Size (Display Size) 6.5" 6.4" Samsung Galaxy A21s has larger screen size than Motorola Moto G31.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2400 x 1080 pixels Motorola Moto G31 has better screen resolution than Samsung Galaxy A21s.
Display Format HD+ Full HD+
Pixel Density - 409 ppi
Aspect Ratio 20:9 20:9
Colour Depth 16.7 million colours -
Display Refresh Rate - 60 Hz
Display Features Infinity O display Max Vision display
PROCESSOR Samsung Galaxy A21s Motorola Moto G31
Processor Type (CPU) - MediaTek Helio G85
Clock Speed 2 GHz 2 GHz Both phones have the same clock speed.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) - ARM Mali-G52 MC2
MEMORY Samsung Galaxy A21s Motorola Moto G31
RAM 3 GB 4 GB Motorola Moto G31 has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 32 GB 64 GB Motorola Moto G31 has more internal memory than Samsung Galaxy A21s.
User Memory 19.5 GB -
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 512 GB microSDHC, microSD, microSDXC - up to 1 TB
CAMERA Samsung Galaxy A21s Motorola Moto G31
MAIN CAMERA
Number of Main Cameras 4 4
Sensor Resolution 48 Megapixel 50 Megapixel Motorola Moto G31 has better camera resolution than Samsung Galaxy A21s.
Lens Type Wide-angle lens -
Lens Aperture F/2.0 F/1.8 Motorola Moto G31 has better lens aperture than Samsung Galaxy A21s.
Field of View (FoV) 80 degree(s) -
Pixel Size - 1.28 μm
Focus Adjustment Automatic Automatic
Digital Zoom 8x -
Self-Timer Delay - Yes
Special Effects - HDR, Spot Colour
Camera Modes Live Focus mode Panorama, Pro mode, Timer mode, BurstShot, Watermark mode, Active photos, Cinemagraph, Portrait, Night Vision, AR stickers, Levelling, Macro Vision, Long exposure mode, Live filter, Capture Dual
Face Recognition (Face ID) - Auto smile capture Motorola Moto G31 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
Camera Features (Functions) Live Focus Phase Detect Auto-Focus (PDAF), Barcode Scanner, Cutout, Quad Pixel technology, smart composition, RAW photo output, shot optimisation, Google Lens, High-res digital zoom (up to 8x), Assistive Grid
SECOND CAMERA
Sensor Resolution (2nd Camera) 8 Megapixel 8 Megapixel Both phones have the same second camera resolution.
Lens Type (2nd Camera) Ultra wide-angle lens Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.2 F/2.2 Both phones have the same second camera lens aperture.
Field of View (2nd Camera) 123 degree(s) 118 degree(s) Samsung Galaxy A21s has larger second camera lens field of view than Motorola Moto G31.
Pixel Size (2nd Camera) - 1.12 μm
Camera Functions (2nd Camera) - Depth camera
THIRD CAMERA
Sensor Resolution (3rd Camera) 2 Megapixel 2 Megapixel Both phones have the same third camera resolution.
Lens Aperture (3rd Camera) F/2.4 F/2.4 Both phones have the same lens aperture of the third camera.
Pixel Size (3rd Camera) - 1.75 μm
Camera Functions (3rd Camera) Macro camera Macro camera
Camera Features (3rd Camera) 4cm macro photography -
FOURTH CAMERA
Sensor Resolution (4th Camera) 2 Megapixel -
Lens Aperture (4th Camera) F/2.4 F/2.4 Both phones have the same lens aperture of the fourth camera.
Pixel Size (4th Camera) - 1.75 μm
Camera Functions (4th Camera) Depth camera Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 13 Megapixel 13 Megapixel Both phones have the same front camera resolution.
Lens Aperture (Front) F/2.2 F/2.2 Both phones have the same front camera lens aperture.
Pixel Size (Front) - 1.12 μm
Focus Adjustment Focus free -
Special Effects (Front) - HDR, Spot Colour
Camera Modes (Front) - Slow motion video, Pro mode, Timer mode, BurstShot, HYPERLAPSE, Watermark mode, portrait mode, Face Beauty, Timelapse video, Active photos, Cinemagraph, Portrait, Night Vision, Levelling, Gesture selfie, Group selfie, Long exposure mode, Live filter, Low Light AI Selfie, Capture Dual, Gesture Capture
Face Recognition (Face ID) - Auto smile capture Motorola Moto G31 has face detection.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps
Camera Features (Front) - Video image stabilisation, RAW photo, Shot optimisation, Selfie animation, Assistive grid
BATTERY AND CHARGING Samsung Galaxy A21s Motorola Moto G31
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Talk Time 3240 minutes -
Run Time Details Active online usage (4G): up to 23 hrs
Active online usage (Wi-Fi): up to 23 hrs
Playback (video): up to 21 hrs
Playback (audio): up to 109 hrs
Talk (4G): up to 3240 min
Standard usage: up to 36 hrs
Battery Technology Lithium Ion -
CELLULAR Samsung Galaxy A21s Motorola Moto G31
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System - Android 11
User Interface One UI -
Intelligent Assistant - Google Assistant
Navigation GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, Galileo
COMMUNICATIONS Samsung Galaxy A21s Motorola Moto G31
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM -
3G UMTS Band Band 1, Band 2, Band 5, Band 8 -
3G UMTS Frequency 2100, 1900, 850, 900 -
4G LTE Band Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 -
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 -
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 LE Bluetooth 5.0
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA Samsung Galaxy A21s Motorola Moto G31
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID Dolby Atmos
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 -
Sound Enhancements Dolby Atmos sound technology -
FEATURES Samsung Galaxy A21s Motorola Moto G31
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert -
Sensors Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, SAR sensor, gyroscope
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader
Security Technology - Face Unlock
Additional Phone Features Samsung KNOX, Virtual Light Sensing Dual microphones
OTHERS Samsung Galaxy A21s Motorola Moto G31
Included Accessories Power adapter Protective cover, USB cable, SIM card removal tool, 10W charger
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