Samsung Galaxy A21s (SM-A217F) vs Quantum Sky

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Side by side comparison between Samsung Galaxy A21s vs Quantum Sky phones, differences, pros, cons and full specifications. What's the better?

7/15/2020 12:38 AM, updated: 6/23/2023 8:41 AM

Compare Quantum Sky X Samsung Galaxy A21s (SM-A217F) 12Points

Specifications Compare Models Pictures

6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

Octa-core

5000
mAh

(Non removable)

14Points Quantum Sky Compare Samsung Galaxy A21s X

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

16mp

4GB
RAM

Octa-core

4010
mAh

(Non removable)

What's the better phone? Quantum Sky

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

12 Advantages Samsung Galaxy A21s (SM-A217F)	vs	14 Advantages Quantum Sky
+2GHz 64bit Octa-core (8nm)27% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (28nm)
+Until 512GB microSD, microSDXC100% More external storage for files using memory cards	vs	Until 256GB microSD, microSDXC
+6.5"18% Larger screen	vs	5.5"
+(quad camera) 48MP + 8MP + 2MP + 2MP4 times Higher resolution main camera	vs	(back) 13MP
+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera	vs	(front) HD (1280x720)
+Android 12Advantage Android 12 is newer and safer	vs	Android 7.0 Nougat
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+5000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4010 mAh
+15W50% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.	vs	10W
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.0 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0, USB OTG On-The-Go
3GB LPDDR4X	vs	+4GB LPDDR333% More RAM memory. Typically more responsive and better for multitasking.
32GB (19GB available)	vs	+64GB (53GB available)179% More internal storage for applications and files
192 grams (6.72 ounces)	vs	+182 grams (6.37 ounces)5% Lighter
8.9 millimeters (0.35 inches)	vs	+8.3 millimeters (0.33 inches)7% Thinner
Plastic body, glass front	vs	+Aluminum body, glass front, aluminum back with plastic endsAdvantage More resistant material
TFT PLS	vs	+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid
720x1600 pixels	vs	+1080x1920 pixels80% Higher resolution screen
270 PPI	vs	+401 PPI49% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
(front) 13MP	vs	+(front) 16MP25% Higher resolution secondary camera to take pictures and selfies
Virtual ambient light sensor	vs	+Ambient light sensorAdvantage Sensors help you use the device
Not supported	vs	+PedometerAdvantage Sensors help you use the device
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

25 Common items in both devices

eMMC 5.1

60Hz

16 million

Only digital zoom

PDAF: phase detection autofocus / Autofocus

EIS: Digital stabilization

HDR photo on both cameras

+18 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Galaxy A21s (SM-A217F)	Quantum Sky
Change model
Model	Galaxy A21s (SM-A217F)	Quantum Sky
Other model names	Galaxy A21s SM-A217F Single-Sim (32GB + 3GB RAM)	Positivo Quantum Sky 4G 64GB, Quantum Sky QX1
Country or region available	South Africa, Australia, New Zealand	Brazil
Brand	Samsung	Quantum
Release date	6/2/2020, Announced: 5/15/2020	8/29/2017
Depth	8.9 millimeters (0.35 inches)	8.3 millimeters (0.33 inches)
Size (width x height)	75.3 x 163.7 millimeters (2.96 x 6.44 in)	76.5 x 154.5 millimeters (3.01 x 6.08 in)
Weight	192 grams (6.72 ounces)	182 grams (6.37 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, aluminum back with plastic ends
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A21s (SM-A217F)	Quantum Sky
Display type	TFT PLS	TFT IPS LCD
Screen size	6.5" inches	5.5" inches
Screen-to-body ratio	~82.8% (screen-to-body ratio)	~70.6% (screen-to-body ratio)
Display resolution	720x1600 pixels (20:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	270 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	2.5D glass
🤖 Operating System
	Galaxy A21s (SM-A217F)	Quantum Sky
System version	Android 10	Android 7.0 Nougat
Firmware update	Android 12	feature not registered
User Interface	One UI 2.0 / 3.1 / 4.1	feature not registered
⚙️ Processor
	Galaxy A21s (SM-A217F)	Quantum Sky
Chipset	64bit: Samsung Exynos 850 (8nm)	64bit: MediaTek Helio P10 (MT6755) (28nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)	Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.2GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-G52 MP1	ARM Mali-T860 MP2 (700MHz)
Performance (benchmark)	AnTuTu: 107157 (v8) Geekbench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy A21s (SM-A217F)	Quantum Sky
RAM memory	3GB LPDDR4X	4GB LPDDR3
Internal storage	32GB (19GB available) eMMC 5.1	64GB (53GB available) eMMC 5.1
External storage	Until 512GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy A21s (SM-A217F)	Quantum Sky
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	300/150 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Tri-Band 850/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 850/1900/2100
Primary 4G network	LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)	LTE Cat6 (1, 2, 3, 4, 5, 7, 28)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G network	Not supported	GSM 850/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	Galaxy A21s (SM-A217F)	Quantum Sky
Back camera (main camera)	(quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4	13 megapixels
Main camera resolution	8000x6000 pixels	4128x3096 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	Sony IMX258 (back) Samsung S5K3P3 (front)
📸 Front camera
	Galaxy A21s (SM-A217F)	Quantum Sky
Front camera (secondary)	13 megapixels	16 megapixels
Front camera resolution	4128x3096 pixels	4608x3456 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
Front flash	Not supported	LED
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/3.1" inches	feature not registered
Pixel size	1.12µm pixel	feature not registered
🔉 Sound and multimedia
	Galaxy A21s (SM-A217F)	Quantum Sky
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	Not supported
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy A21s (SM-A217F)	Quantum Sky
USB	USB 2.0 Type-C reversible connector	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	4.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A21s (SM-A217F)	Quantum Sky
Sensors	Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Pedometer Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A21s (SM-A217F)	Quantum Sky
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	4010 mAh
Charger, watts	15W (9V/1.67A) Wired fast charging	10W Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	28 hours (1.2 days)
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A21s (SM-A217F)	Quantum Sky
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black, White, Blue, Red	• Colors: Silver, Gold • Screen protector included • Silicon case included
☢️ Radiation rate
	Galaxy A21s (SM-A217F)	Quantum Sky
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.422W/kg (head), 1.544W/kg (body)	feature not registered