Xiaomi Mi A2 (64GB) vs Quantum Sky

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Side by side comparison between Xiaomi Mi A2 vs Quantum Sky phones, differences, pros, cons and full specifications. What's the better?

8/14/2018 9:01 AM, updated: 6/23/2023 8:41 AM

Compare Quantum Sky X Xiaomi Mi A2 (64GB) 20Points

Specifications Compare Models Pictures

5.99"
IPS

1080x2160

12
MP

20mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

05Points Quantum Sky Compare Xiaomi Mi A2 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? Xiaomi Mi A2 (64GB)

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!

20 Advantages Xiaomi Mi A2 (64GB)	vs	5 Advantages Quantum Sky
+2.2GHz 64bit Octa-core (14nm)44% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (28nm)
+4GB LPDDR4XAdvantage This RAM type is better and more efficient.	vs	4GB LPDDR3
+166 grams (5.81 ounces)10% Lighter	vs	182 grams (6.37 ounces)
+7.3 millimeters (0.29 inches)14% Thinner	vs	8.3 millimeters (0.33 inches)
+1080x2160 pixels13% Higher resolution screen	vs	1080x1920 pixels
+403 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+5.99"9% Larger screen	vs	5.5"
+(dual camera) 12MP + 20MP150% Higher resolution main camera	vs	(back) 13MP
+Dual-LED on main camera and LED on front cameraAdvantage The Dual-LED on main camera and LED on front camera helps in dark places or in low light	vs	LED flash on both cameras
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(front) 20MP26% Higher resolution secondary camera to take pictures and selfies	vs	(front) 16MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera	vs	(front) HD (1280x720)
+Android 10Advantage Android 10 is newer and safer	vs	Android 7.0 Nougat
+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files	vs	(4G LTE) 300 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+18W80% 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
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
Not supported	vs	+PedometerAdvantage Sensors help you use the device
3000 mAh	vs	+4010 mAh34% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general

25 Common items in both devices

64GB (51GB available) / 64GB (53GB available)

eMMC 5.1

Aluminum body, glass front / Aluminum body, glass front, aluminum back with plastic ends

LTPS IPS LCD / TFT IPS LCD

60Hz

16 million

Only digital zoom

+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
	Xiaomi Mi A2 (64GB)	Quantum Sky
Change model
Model	Xiaomi Mi A2 (64GB)	Quantum Sky
Other model names	Xiaomi A2 M1804D2SG (64GB + 4GB RAM), 小米6X, Xiaomi Wayne	Positivo Quantum Sky 4G 64GB, Quantum Sky QX1
Country or region available	(Global, International), India	Brazil
Brand	Xiaomi	Quantum
Release date	7/27/2018, Announced: 7/24/2018	8/29/2017
Depth	7.3 millimeters (0.29 inches)	8.3 millimeters (0.33 inches)
Size (width x height)	75.4 x 158.7 millimeters (2.97 x 6.25 in)	76.5 x 154.5 millimeters (3.01 x 6.08 in)
Weight	166 grams (5.81 ounces)	182 grams (6.37 ounces)
Build, materials	Aluminum body, glass front	Aluminum body, glass front, aluminum back with plastic ends
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi A2 (64GB)	Quantum Sky
Display type	LTPS IPS LCD	TFT IPS LCD
Screen size	5.99" inches	5.5" inches
Screen-to-body ratio	~77.4% (screen-to-body ratio)	~70.6% (screen-to-body ratio)
Display resolution	1080x2160 pixels (19:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	403 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	2.5D glass
🤖 Operating System
	Xiaomi Mi A2 (64GB)	Quantum Sky
System version	Android 8.1 Oreo	Android 7.0 Nougat
Firmware update	Android 10	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi A2 (64GB)	Quantum Sky
Chipset	64bit: Qualcomm Snapdragon 660 (SDM660) (14nm)	64bit: MediaTek Helio P10 (MT6755) (28nm)
CPU	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)	Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.2GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 512 (650MHz)	ARM Mali-T860 MP2 (700MHz)
Performance (benchmark)	AnTuTu: 130927 (v7), 172886 (v8) Geekbench: 4625 (v4.4), 1157 (v5.1) GFXBench: 8.6fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Xiaomi Mi A2 (64GB)	Quantum Sky
RAM memory	4GB LPDDR4X	4GB LPDDR3
Internal storage	64GB (51GB available) eMMC 5.1	64GB (53GB available) eMMC 5.1
External storage	Not supported	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi Mi A2 (64GB)	Quantum Sky
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	600/150 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	Global version: UMTS 850/900/1700/1900/2100 India version: UMTS 850/900/1900/2100	UMTS 850/1900/2100
Primary 4G network	LTE Cat12 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40) India version: LTE (Bands 1, 3, 5) TD-LTE (Bands 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	GSM 850/900/1800/1900	GSM 850/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Xiaomi Mi A2 (64GB)	Quantum Sky
Back camera (main camera)	(dual camera) 12 megapixels 20MP f/1.81/2.8"1.0µm	13 megapixels
Main camera resolution	4000x3000 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED on main camera and LED on front camera	LED flash on both cameras
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.9" inches	feature not registered
Pixel size	1.25µm 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
	Xiaomi Mi A2 (64GB)	Quantum Sky
Front camera (secondary)	20 megapixels	16 megapixels
Front camera resolution	5164x3872 pixels	4608x3456 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
Front flash	LED	LED
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.8" inches	feature not registered
Pixel size	1µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi A2 (64GB)	Quantum Sky
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	Not supported
Radio	Not supported	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, OGG, eAAC+, FLAC	MP3, WAV, OGG, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi A2 (64GB)	Quantum Sky
USB	USB 2.0 Type-C reversible connector	MicroUSB 2.0, USB OTG On-The-Go
Audio output	Type-C jack with 3.5mm jack adapter	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, BeiDou	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	Xiaomi Mi A2 (64GB)	Quantum Sky
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Pedometer Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi A2 (64GB)	Quantum Sky
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	4010 mAh
Charger, watts	18W Wired fast charging Quick Charge 4	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
	Xiaomi Mi A2 (64GB)	Quantum Sky
Call control	Voice dialing, Voice recorder	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, Gold, Blue, Red, Rose Gold • Android One • Back camera sensor: Sony IMX486/IMX376 • Front camera sensor: Sony IMX376 • WiFi display	• Colors: Silver, Gold • Screen protector included • Silicon case included
☢️ Radiation rate
	Xiaomi Mi A2 (64GB)	Quantum Sky
SAR 1.6W/kg (USA, Mexico, etc.)	0.96W/kg (head), 0.64W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.16W/kg (head), 0.66W/kg (body)	feature not registered