Samsung Galaxy A21s vs. ASUS ROG Phone 3

Phone Comparison, Reviews and Tests

Side by side comparison and review of Samsung Galaxy A21s and ASUS ROG Phone 3. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.

Phone Specifications Comparison

Samsung Galaxy A21s vs. ASUS ROG Phone 3 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A21s ASUS ROG Phone 3
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A217F/DSN ZS661KS
Form Factor Touch Touch
Height 163.7 mm 171 mm ASUS ROG Phone 3 has greater height than Samsung Galaxy A21s.
Width 75.3 mm 78 mm ASUS ROG Phone 3 has greater width than Samsung Galaxy A21s.
Depth 8.9 mm 9.85 mm Samsung Galaxy A21s is narrower than Samsung Galaxy A21s.
Weight 192 g 240 g Samsung Galaxy A21s is lighter than Samsung Galaxy A21s.
Body Colour White | Blue | Black Black glare
Waterproof (Water-resistant) - -
SAR Value 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) -
Integrated Components - FM radio
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
USB Type-C
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Samsung Galaxy A21s ASUS ROG Phone 3
Display Type LCD display OLED display
Display Technology PLS TFT AMOLED
Screen Size (Display Size) 6.5" 6.59" ASUS ROG Phone 3 has larger screen size than Samsung Galaxy A21s.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2340 x 1080 pixels ASUS ROG Phone 3 has better screen resolution than Samsung Galaxy A21s.
Display Format HD+ -
Aspect Ratio 20:9 19.5:9
Colour Depth 16.7 million colours -
HDR - Yes ASUS ROG Phone 3 has HDR.
Display Refresh Rate - 144 Hz
Display Features Infinity O display -
PROCESSOR Samsung Galaxy A21s ASUS ROG Phone 3
Processor Type (CPU) - Qualcomm Snapdragon 865
Processor Number - SM8250
Clock Speed 2 GHz 2.84 GHz ASUS ROG Phone 3 has higher clock speed than Samsung Galaxy A21s.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture - Yes ASUS ROG Phone 3 has 64-bit architecture.
Graphics System (GPU) - Qualcomm ADRENO 650
MEMORY Samsung Galaxy A21s ASUS ROG Phone 3
RAM 3 GB LPDDR4X SDRAM - 8 GB ASUS ROG Phone 3 has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 32 GB 256 GB ASUS ROG Phone 3 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 -
CAMERA Samsung Galaxy A21s ASUS ROG Phone 3
MAIN CAMERA
Number of Main Cameras 4 2
Sensor Resolution 48 Megapixel 64 Megapixel ASUS ROG Phone 3 has better camera resolution than Samsung Galaxy A21s.
Lens Type Wide-angle lens -
Lens Aperture F/2.0 -
Field of View (FoV) 80 degree(s) -
Focus Adjustment Automatic Automatic
Digital Zoom 8x -
Camera Modes Live Focus mode -
Light Source LED flash Dual LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps -
Camera Features (Functions) Live Focus -
SECOND CAMERA
Sensor Resolution (2nd Camera) 8 Megapixel 13 Megapixel ASUS ROG Phone 3 has better second camera resolution than Samsung Galaxy A21s.
Lens Type (2nd Camera) Ultra wide-angle lens -
Lens Aperture (2nd Camera) F/2.2 -
Field of View (2nd Camera) 123 degree(s) -
THIRD CAMERA
Sensor Resolution (3rd Camera) 2 Megapixel -
Lens Aperture (3rd Camera) F/2.4 -
Camera Functions (3rd 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 -
Camera Functions (4th Camera) Depth camera -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 13 Megapixel 24 Megapixel ASUS ROG Phone 3 has better front camera resolution than Samsung Galaxy A21s.
Lens Aperture (Front) F/2.2 -
Focus Adjustment Focus free -
BATTERY AND CHARGING Samsung Galaxy A21s ASUS ROG Phone 3
Battery Capacity (Battery Size) 5000 mAh 6000 mAh ASUS ROG Phone 3 has larger battery capacity than Samsung Galaxy A21s.
Fast Charging Technology - Qualcomm Quick Charge 4.0, Asus ROG HyperCharge ASUS ROG Phone 3 has fast charging technology.
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
-
Battery Technology Lithium Ion -
CELLULAR Samsung Galaxy A21s ASUS ROG Phone 3
Technology WCDMA (UMTS) / GSM TD-SCDMA / WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G ASUS ROG Phone 3 has more advanced generation mobile network.
Operating System - Android 10
User Interface One UI ROG UI
Navigation GPS, GLONASS, BeiDou, Galileo GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Samsung Galaxy A21s ASUS ROG Phone 3
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE, 5G NR
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 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 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 34, Band 38, Band 39, 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 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 5.0 LE Bluetooth 5.1
Bluetooth Profiles - HFP, OPP, PAN, A2DP, AVRCP, HID
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Samsung Galaxy A21s ASUS ROG Phone 3
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID Apt-X, apt-X HD
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 -
Sound Enhancements Dolby Atmos sound technology -
FEATURES Samsung Galaxy A21s ASUS ROG Phone 3
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, gyro sensor, geomagnetic sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, ultrasonic sensor
Security Devices Face recognition, fingerprint reader Fingerprint reader (under display), face recognition
Additional Phone Features Samsung KNOX, Virtual Light Sensing MIMO technology, Four microphones with Noise Reduction technology
OTHERS Samsung Galaxy A21s ASUS ROG Phone 3
Included Accessories Power adapter SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, protective case, 30W fast charger, AeroCooler 3 Fan with USB-C and 3.5mm audio jack
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