UMIDIGI One Max vs. Samsung Galaxy A21s

Phone Comparison, Reviews and Tests

Side by side comparison and review of UMIDIGI One Max 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

UMIDIGI One Max vs. Samsung Galaxy A21s Comparison Chart
DESIGN AND DIMENSIONS UMIDIGI One Max Samsung Galaxy A21s
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A217F/DSN
Form Factor Touch Touch
Height 156.8 mm 163.7 mm Samsung Galaxy A21s has greater height than UMIDIGI One Max.
Width 75.6 mm 75.3 mm UMIDIGI One Max has greater width than Samsung Galaxy A21s.
Depth 8.35 mm 8.9 mm UMIDIGI One Max is narrower than UMIDIGI One Max.
Weight 205 g 192 g Samsung Galaxy A21s is lighter than UMIDIGI One Max.
Body Colour Twilight White | Blue | Black
Body Material Tempered glass, aluminium frame -
Waterproof (Water-resistant) - -
SAR Value - 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
SIM Card Configuration Details Nano SIM + nano SIM/microSD -
DISPLAY UMIDIGI One Max Samsung Galaxy A21s
Display Type LCD display LCD display
Display Technology - PLS TFT
Screen Size (Display Size) 6.3" 6.5" Samsung Galaxy A21s has larger screen size than UMIDIGI One Max.
Screen Resolution (Display Resolution) 1520 x 720 pixels 1600 x 720 pixels Samsung Galaxy A21s has better screen resolution than UMIDIGI One Max.
Display Format - HD+
Pixel Density 271 ppi -
Aspect Ratio 19:9 20:9
Colour Depth - 16.7 million colours
Display Features In-Cell Display Technology, Reading mode, Colour temperature adjustment Infinity O display
PROCESSOR UMIDIGI One Max Samsung Galaxy A21s
Processor Type (CPU) MediaTek Helio P23 -
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 - UMIDIGI One Max has 64-bit architecture.
Graphics System (GPU) Mali-G71 MP2 -
MEMORY UMIDIGI One Max Samsung Galaxy A21s
RAM LPDDR4X SDRAM - 4 GB 3 GB UMIDIGI One Max has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 128 GB 32 GB UMIDIGI One Max has more internal memory than Samsung Galaxy A21s.
User Memory - 19.5 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC - up to 512 GB
CAMERA UMIDIGI One Max Samsung Galaxy A21s
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 48 Megapixel Samsung Galaxy A21s has better camera resolution than UMIDIGI One Max.
Sensor Name Omnivision OV12870 sensor -
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/2.0 Both phones have the same camera lens aperture.
Lens Construction 6-element -
Field of View (FoV) - 80 degree(s)
Focus Adjustment - Automatic
Digital Zoom - 8x
Camera Modes Panorama Live Focus mode
Face Recognition (Face ID) Face recognition - UMIDIGI One Max has face detection.
Light Source Dual LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Real-time photo filters Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) 5 Megapixel 8 Megapixel Samsung Galaxy A21s has better second camera resolution than UMIDIGI One Max.
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) 16 Megapixel 13 Megapixel UMIDIGI One Max has better front camera resolution than Samsung Galaxy A21s.
Sensor Name (Front) Samsung S5K3P3 -
Lens Aperture (Front) F/2.0 F/2.2 UMIDIGI One Max has better front lens aperture than UMIDIGI One Max.
Lens Element Qty (Front) 5-element -
Focus Adjustment - Focus free
Face Recognition (Face ID) Face recognition - UMIDIGI One Max has face detection.
Camera Features (Front) Selfie countdown -
BATTERY AND CHARGING UMIDIGI One Max Samsung Galaxy A21s
Battery Capacity (Battery Size) 4150 mAh 5000 mAh Samsung Galaxy A21s has larger battery capacity than UMIDIGI One Max.
Wireless Charging Yes - UMIDIGI One Max can be charged wirelessly.
Wireless Charging Standards Qi, Fast Wireless Charging -
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 UMIDIGI One Max Samsung Galaxy A21s
Technology CDMA2000 1X / GSM / WCDMA (UMTS) WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 8.1.0 Oreo -
User Interface - One UI
Navigation GPS, GLONASS GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS UMIDIGI One Max Samsung Galaxy A21s
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 800, 900, 800 2100, 1900, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 34, Band 38, Band 39, 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 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, 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 IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.1 Bluetooth 5.0 LE
Bluetooth Profiles HID -
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA UMIDIGI One Max Samsung Galaxy A21s
Supported Digital Audio Standards WAV, AAC, PCM, MP3, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, XviD, MPEG-4, M4V, ASP, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements - Dolby Atmos sound technology
FEATURES UMIDIGI One Max 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, gyro sensor, geomagnetic sensor, L-sensor, P-sensor Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices Face recognition, fingerprint reader (side) Face recognition, fingerprint reader
Additional Phone Features Dual microphones Samsung KNOX, Virtual Light Sensing
OTHERS UMIDIGI One Max Samsung Galaxy A21s
Included Accessories Power adapter, SIM card removal tool, USB-C cable, pre-installed screen protector, protective case Power adapter
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