HTC One (A9) vs. Samsung Galaxy A21s

Phone Comparison, Reviews and Tests

Detailed comparison and review of HTC One (A9) 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.

Phone Specifications Comparison

HTC One (A9) vs. Samsung Galaxy A21s Comparison Chart
DESIGN AND DIMENSIONS HTC One (A9) Samsung Galaxy A21s
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A217F/DSN
Form Factor Touch Touch
Height 145.75 mm 163.7 mm Samsung Galaxy A21s has greater height than HTC One (A9).
Width 70.8 mm 75.3 mm Samsung Galaxy A21s has greater width than HTC One (A9).
Depth 7.26 mm 8.9 mm HTC One (A9) is narrower than HTC One (A9).
Weight 143 g 192 g HTC One (A9) is lighter than HTC One (A9).
Body Colour Topaz gold | Opal silver | Carbon grey White | Blue | Black
Waterproof (Water-resistant) - -
SAR Value 0.41 W/kg 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
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty - Dual-SIM
DISPLAY HTC One (A9) Samsung Galaxy A21s
Display Type OLED display LCD display
Display Technology AMOLED PLS TFT
Screen Size (Display Size) 5" 6.5" Samsung Galaxy A21s has larger screen size than HTC One (A9).
Screen Resolution (Display Resolution) 1920 x 1080 pixels 1600 x 720 pixels HTC One (A9) has better screen resolution than Samsung Galaxy A21s.
Display Format Full HD HD+
Pixel Density 440 ppi -
Aspect Ratio - 20:9
Colour Depth - 16.7 million colours
Display Features - Infinity O display
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) -
PROCESSOR HTC One (A9) Samsung Galaxy A21s
Processor Type (CPU) Qualcomm Snapdragon 617 -
Clock Speed 1.5 GHz 2 GHz Samsung Galaxy A21s has higher clock speed than HTC One (A9).
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes - HTC One (A9) has 64-bit architecture.
MEMORY HTC One (A9) Samsung Galaxy A21s
RAM 2 GB 3 GB Samsung Galaxy A21s has more RAM than HTC One (A9).
Internal Memory Size (Storage Capacity) 16 GB 32 GB Samsung Galaxy A21s has more internal memory than HTC One (A9).
User Memory - 19.5 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 2 TB microSDHC, microSDXC - up to 512 GB
CAMERA HTC One (A9) Samsung Galaxy A21s
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 13 Megapixel 48 Megapixel Samsung Galaxy A21s has better camera resolution than HTC One (A9).
Sensor Type BSI-CMOS -
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/2.0 Both phones have the same camera lens aperture.
Field of View (FoV) - 80 degree(s)
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - HTC One (A9) has optical stabilisation.
Focus Adjustment Automatic Automatic
Digital Zoom - 8x
Camera Modes Pro mode Live Focus mode
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Sapphire crystal lens cover Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
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) 4 Megapixel 13 Megapixel Samsung Galaxy A21s has better front camera resolution than HTC One (A9).
Lens Aperture (Front) F/2.0 F/2.2 HTC One (A9) has better front lens aperture than HTC One (A9).
Focus Adjustment Focus free Focus free
Video Resolutions (Front) 1920 x 1080 (1080p) -
Camera Features (Front) HTC UltraPixel Camera -
BATTERY AND CHARGING HTC One (A9) Samsung Galaxy A21s
Battery Capacity (Battery Size) 2150 mAh 5000 mAh Samsung Galaxy A21s has larger battery capacity than HTC One (A9).
Standby Time 432 hours -
Talk Time 960 minutes 3240 minutes Samsung Galaxy A21s has longer battery life when making calls than HTC One (A9).
Run Time Details Talk (WCDMA): up to 960 min
Standby (WCDMA): up to 432 hrs
Active online usage (Wi-Fi): up to 9 hrs
Playback (audio): up to 60 hrs
Playback (video): up to 12 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
Battery Technology Lithium polymer Lithium Ion
CELLULAR HTC One (A9) Samsung Galaxy A21s
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 6.0 (Marshmallow) -
User Interface HTC Sense One UI
Navigation GPS, GLONASS GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS HTC One (A9) Samsung Galaxy A21s
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
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 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 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 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 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 4.1 Bluetooth 5.0 LE
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA HTC One (A9) Samsung Galaxy A21s
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, M4A, EC3 WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, AVI, MPEG-4, WMV, 3GP, 3G2 MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements Dolby sound technology Dolby Atmos sound technology
FEATURES HTC One (A9) 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 Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices Fingerprint reader Face recognition, fingerprint reader
Additional Phone Features DLNA Certified, HTC BlinkFeed, Hi-Res Audio, Android Sensor Hub Samsung KNOX, Virtual Light Sensing
OTHERS HTC One (A9) Samsung Galaxy A21s
Included Accessories Power adapter Power adapter
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