Detailed comparison and review of HTC Desire 820 and Samsung Galaxy A21s. 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.
DESIGN AND DIMENSIONS | HTC Desire 820 | Samsung Galaxy A21s |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | - | SM-A217F/DSN | |
Form Factor | Touch | Touch | |
Height | 157.7 mm | 163.7 mm | Samsung Galaxy A21s has greater height than HTC Desire 820. |
Width | 78.74 mm | 75.3 mm | HTC Desire 820 has greater width than Samsung Galaxy A21s. |
Depth | 7.74 mm | 8.9 mm | HTC Desire 820 is narrower than HTC Desire 820. |
Weight | 155 g | 192 g | HTC Desire 820 is lighter than HTC Desire 820. |
Body Colour | Tuxedo grey | Marble white | White | Blue | Black | |
Body Material | Polycarbonate | - | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.323 W/kg (body), 0.373 W/kg (head) | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | |
Integrated Components | FM radio | - | |
Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | - | Dual-SIM |
DISPLAY | HTC Desire 820 | Samsung Galaxy A21s |
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Display Type | LCD display | LCD display | |
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Display Technology | Super LCD 2 | PLS TFT | |
Screen Size (Display Size) | 5.5" | 6.5" | Samsung Galaxy A21s has larger screen size than HTC Desire 820. |
Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Samsung Galaxy A21s has better screen resolution than HTC Desire 820. |
Display Format | HD | HD+ | |
Pixel Density | 267 ppi | - | |
Aspect Ratio | - | 20:9 | |
Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
Display Features | - | Infinity O display | |
Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
PROCESSOR | HTC Desire 820 | Samsung Galaxy A21s |
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Processor Type (CPU) | Qualcomm Snapdragon 615 | - | |
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Clock Speed | - | 2 GHz | |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
Graphics System (GPU) | Qualcomm ADRENO 405 | - |
MEMORY | HTC Desire 820 | Samsung Galaxy A21s |
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RAM | 2 GB | 3 GB | Samsung Galaxy A21s has more RAM than HTC Desire 820. |
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Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Samsung Galaxy A21s has more internal memory than HTC Desire 820. |
User Memory | 11.2 GB | 19.5 GB | |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 512 GB |
CAMERA | HTC Desire 820 | Samsung Galaxy A21s |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 4 | |
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Sensor Resolution | 13 Megapixel | 48 Megapixel | Samsung Galaxy A21s has better camera resolution than HTC Desire 820. |
Sensor Type | BSI-CMOS | - | |
Lens Type | - | Wide-angle lens | |
Lens Aperture | F/2.2 | F/2.0 | Samsung Galaxy A21s has better lens aperture than HTC Desire 820. |
Field of View (FoV) | - | 80 degree(s) | |
Focus Adjustment | Automatic | Automatic | |
Minimum Focal Length (Focal Distance) | 28 mm | - | |
Digital Zoom | - | 8x | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Burst mode | Live Focus mode | |
Face Recognition (Face ID) | Face detection | - | HTC Desire 820 has face detection. |
Light Source | LED light | LED flash | |
Still Image Resolutions | 4160 x 3120 | - | |
Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Functions) | Auto selfie, Photo Booth feature, Live Makeup, Split Capture | Live Focus |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
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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 |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Camera Functions (3rd Camera) | - | Macro camera | |
Camera Features (3rd Camera) | - | 4cm macro photography |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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Lens Aperture (4th Camera) | - | F/2.4 | |
Camera Functions (4th Camera) | - | Depth camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better front camera resolution than HTC Desire 820. |
Sensor Type (Front) | BSI-CMOS | - | |
Lens Aperture (Front) | - | F/2.2 | |
Focus Adjustment | - | Focus free | |
Special Effects (Front) | Face fusion | - | |
Video Resolutions (Front) | 1920 x 1080 (1080p) | - |
BATTERY AND CHARGING | HTC Desire 820 | Samsung Galaxy A21s |
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Battery Capacity (Battery Size) | 2600 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than HTC Desire 820. |
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Standby Time | 455 hours | - | |
Talk Time | 1068 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than HTC Desire 820. |
Run Time Details | Talk (WCDMA): up to 1068 min Standby (WCDMA): up to 455 hrs |
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 |
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Battery Technology | Lithium polymer | Lithium Ion |
CELLULAR | HTC Desire 820 | Samsung Galaxy A21s |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 4.4 (KitKat) | - | |
User Interface | HTC Sense | One UI | |
Navigation | A-GPS, GLONASS | GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | HTC Desire 820 | Samsung Galaxy A21s |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
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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 3, Band 7, Band 8, Band 20 | 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 1800+, FDD 2600, FDD 900, FDD 800 DD | 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 | IEEE 802.11a/b/g/n/ac | |
Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 LE | |
Bluetooth Profiles | A2DP | - | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Communication Features | Mobile Email client, Internet browser | - | |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | HTC Desire 820 | Samsung Galaxy A21s |
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Supported Digital Audio Standards | WAV, AAC, AMR, MP3, OGG, MIDI, M4A, WMA 9 | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
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Supported Digital Video Standards | AVI, MPEG-4, 3GP, H.264, H.263, WMV9, 3G2 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
Sound Enhancements | HTC BoomSound | Dolby Atmos sound technology |
FEATURES | HTC Desire 820 | Samsung Galaxy A21s |
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Phone Functions | Speakerphone, voice control, call timer, conference call, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
Security Devices | - | Face recognition, fingerprint reader | |
Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
Additional Phone Features | DLNA Certified, sharing media via DLNA, Wi-Fi Miracast, HTC BlinkFeed, HTC Sense Voice | Samsung KNOX, Virtual Light Sensing |
OTHERS | HTC Desire 820 | Samsung Galaxy A21s |
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Included Accessories | Power adapter | Power adapter |
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