Samsung Galaxy M31 Prime vs Xiaomi Mi A2

Samsung Galaxy M31 Prime

Xiaomi Mi A2

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

LTE-A, Cat10 452 Mbps download, 102 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 3), plastic back, plastic frame

Front glass, aluminum body
SIM

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

159.2 mm

158.7 mm
Width

75.1 mm

75.4 mm
Thickness

8.9 mm

7.3 mm
Weight

191 g

168 g
Colors

Black, Iceberg Blue, Ocean Blue

Black, Cherry Pink, Flame Red, Glacier Blue, Sand Gold

Display
Display type

Super AMOLED

LTPS IPS LCD capacitive touchscreen
Physical size

6.4 inches

5.99 inches
Resolution

1080 x 2340 pixels

1080 x 2160 pixels
Pixel density

403 ppi

403 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen, Corning Gorilla Glass 3

Corning Gorilla Glass 3
Multitouch

-

Yes
Display features

420 nits (typ), Infinity-O Display

-

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

12 MP, f/1.8 , 1/2.9" , 1.25 µm, 2x optical zoom
(ultrawide) , 8 MP, f/2.2 , 123˚ , 1/4.0" , 1.12 µm

20 MP, f/1.8 , 1/2.8" , 1 µm
(macro) , 5 MP, f/2.4
(depth) , 5 MP, f/2.2
Primary camera resolution

9280 x 6944 pixels

4000 x 3000 pixels
Primary camera video

4K@30fps, 1080p@30fps, gyro-EIS

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

LED flash

LED flash
Electronic image stabilization

-

EIS (gyro)
Camera features

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus

Geo-tagging, HDR, face detection, panorama, touch focus

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm

20 MP, f/1.8 , 1/2.8" , 1.0 µm
Selfie camera resolution

-

5384 x 3752 pixels
Secondary camera HDR

-

Auto HDR
Selfie camera features

Face unlock, HDR

-
Selfie camera video

4K@30fps, 1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 1.0 reversible connector
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Email

-

Push Email
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Fingerprint (rear-mounted), accelerometer, compass, gyro, proximity