Xiaomi Redmi Note 8T vs. Samsung Galaxy A21s

Phone Comparison, Reviews and Tests

Side by side comparison and review of Xiaomi Redmi Note 8T and Samsung Galaxy A21s. 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

Xiaomi Redmi Note 8T vs. Samsung Galaxy A21s Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi Note 8T Samsung Galaxy A21s
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A217F/DSN
Form Factor Touch Touch
Height 161.15 mm 163.7 mm Samsung Galaxy A21s has greater height than Xiaomi Redmi Note 8T.
Width 75.4 mm 75.3 mm Xiaomi Redmi Note 8T has greater width than Samsung Galaxy A21s.
Depth 8.6 mm 8.9 mm Xiaomi Redmi Note 8T is narrower than Xiaomi Redmi Note 8T.
Weight 199.8 g 192 g Samsung Galaxy A21s is lighter than Xiaomi Redmi Note 8T.
Body Colour Starscape blue | Moonlight white White | Blue | Black
Body Material Corning Gorilla Glass 5 -
Protection Splash-resistant -
Waterproof (Water-resistant) - -
SAR Value 1.3 W/kg (body), 0.74 W/kg (head), 2.73 W/kg (limb) 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb)
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
DISPLAY Xiaomi Redmi Note 8T Samsung Galaxy A21s
Display Type - LCD display
Display Technology - PLS TFT
Screen Size (Display Size) 6.3" 6.5" Samsung Galaxy A21s has larger screen size than Xiaomi Redmi Note 8T.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 1600 x 720 pixels Xiaomi Redmi Note 8T has better screen resolution than Samsung Galaxy A21s.
Display Format Full HD+ HD+
Aspect Ratio 19.5:9 20:9
Colour Depth - 16.7 million colours
Contrast Ratio 1500:1 -
Display Enhancement Technology Sunlight mode -
Display Features Eye protection mode, Colour temperature adjustment, night mode, Dot Drop display Infinity O display
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) -
PROCESSOR Xiaomi Redmi Note 8T Samsung Galaxy A21s
Processor Type (CPU) Qualcomm Snapdragon 665 -
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.
64-bit Architecture Yes - Xiaomi Redmi Note 8T has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 610 -
MEMORY Xiaomi Redmi Note 8T Samsung Galaxy A21s
RAM 4 GB 3 GB Xiaomi Redmi Note 8T has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 64 GB 32 GB Xiaomi Redmi Note 8T has more internal memory than Samsung Galaxy A21s.
User Memory - 19.5 GB
Supported Flash Memory Cards (Expandable Memory) microSD microSDHC, microSDXC - up to 512 GB
CAMERA Xiaomi Redmi Note 8T Samsung Galaxy A21s
MAIN CAMERA
Number of Main Cameras 4 4
Sensor Resolution 48 Megapixel 48 Megapixel Both phones have the same camera resolution.
Sensor Size 1/2" -
Lens Type - Wide-angle lens
Lens Aperture F/1.75 F/2.0 Xiaomi Redmi Note 8T has better lens aperture than Xiaomi Redmi Note 8T.
Lens Construction 6-element -
Field of View (FoV) 79.4 degree(s) 80 degree(s) Samsung Galaxy A21s has larger lens field of view than Xiaomi Redmi Note 8T.
Pixel Size 0.8 μm -
Focus Adjustment Automatic Automatic
Digital Zoom - 8x
Special Effects HDR -
Camera Modes Burst mode, Panorama, Pro mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Beautify, Levelling Live Focus mode
Face Recognition (Face ID) Face recognition - Xiaomi Redmi Note 8T has face detection.
Light Source Single tone LED flash LED flash
Still Image Resolutions 8000 x 6000 -
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) EIS video stabilisation, 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Steady handheld night photography, levelling, full screen frame Live Focus
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) 120 degree(s) 123 degree(s) Samsung Galaxy A21s has larger second camera lens field of view than Xiaomi Redmi Note 8T.
Pixel Size (2nd Camera) 1.12 μm -
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 2 Megapixel Both phones have the same resolution of the fourth camera.
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/2.0 F/2.2 Xiaomi Redmi Note 8T has better front lens aperture than Xiaomi Redmi Note 8T.
Pixel Size (Front) 1.12 μm -
Focus Adjustment - Focus free
Camera Modes (Front) Panorama, Hand Gesture, Portrait, Beautify -
Face Recognition (Face ID) Face recognition - Xiaomi Redmi Note 8T has face detection.
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps -
Camera Features (Front) Self-timer, camera display brightness correction, AI seperation, selfie mirror, blur adjustment, full screen frame -
BATTERY AND CHARGING Xiaomi Redmi Note 8T Samsung Galaxy A21s
Battery Capacity (Battery Size) 4000 mAh 5000 mAh Samsung Galaxy A21s has larger battery capacity than Xiaomi Redmi Note 8T.
Recharge Time (Charging Time) 2 hour(s) -
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 polymer Lithium Ion
CELLULAR Xiaomi Redmi Note 8T Samsung Galaxy A21s
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
User Interface - One UI
Payment Technology Google Pay -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi Redmi Note 8T Samsung Galaxy A21s
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1900 GSM, 2100 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 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 Infrared (IrDA), IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.2 Bluetooth 5.0 LE
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi Note 8T Samsung Galaxy A21s
Supported Digital Audio Standards WAV, AAC, AMR, MP3, FLAC 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, H.264, M4V, HEVC MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements - Dolby Atmos sound technology
Audio Amplifier Smart PA -
FEATURES Xiaomi Redmi Note 8T Samsung Galaxy A21s
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, ambient light sensor, proximity sensor, digital compass, gyro sensor Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices Fingerprint reader Face recognition, fingerprint reader
Additional Phone Features Infrared remote control, Dual microphones, Fast Charging, auto cleaning speaker, Qualcomm Third‑generation AI Engine Samsung KNOX, Virtual Light Sensing
OTHERS Xiaomi Redmi Note 8T Samsung Galaxy A21s
Included Accessories Power adapter, SIM card removal tool, USB-C cable, soft case Power adapter
Compliant Standards TUV Rheinland -
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