Xiaomi Mi A2 vs vivo NEX 3S 5G

Network
2G network

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

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

HSDPA 850, 900, 1900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

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

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 26(850), 20(800), 25(1900), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G network

-

5G band 1(2100), 3(1800), 41(2500), 77(3700), 78(3500), 79(4700); SA/NSA
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
HSPA speed

HSPA

-
LTE speed

LTE

LTE Cat18, 1.2 Gbps download, 221 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Front glass, aluminum body

Glass front, glass back, aluminum frame
SIM

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

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

158.7 mm

167.4 mm
Width

75.4 mm

76.1 mm
Thickness

7.3 mm

9.4 mm
Weight

168 g

219.5 g
Colors

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

Black, Blue, Orange

Display
Display type

LTPS IPS LCD capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

5.99 inches

6.89 inches
Resolution

1080 x 2160 pixels

1080 x 2256 pixels
Pixel density

403 ppi

363 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 3D curved glass screen
Multitouch

Yes

Yes

Main camera
Camera type

Dual

Triple
Main camera

12 MP, f/1.8 , 1/2.9" , 1.25 µm, 2x optical zoom

64 MP, f/1.8 , 1/1.72" , 0.8 µm, 26 mm
20 MP, f/1.8 , 1/2.8" , 1 µm

13 MP, f/2.5 , 52 mm, 2x optical zoom
13 MP, f/2.2 , 13 mm
Primary camera resolution

4000 x 3000 pixels

-
Primary camera video

2160p@30fps, 1080p@30fps, 720p@120fps

2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Primary camera Autofocus

phase detection autofocus

-
Primary camera flash

LED flash

LED flash
Electronic image stabilization

EIS (gyro)

-
Camera features

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

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

Selfie camera
Selfie camera

20 MP, f/1.8 , 1/2.8" , 1.0 µm

16 MP, f/2.1 , 1/3.1" , 1.0 µm, 26 mm
Selfie camera resolution

5384 x 3752 pixels

4640 x 3456 pixels
Secondary camera HDR

Auto HDR

-
Selfie camera video

1080p@30fps

1080p@30fps

Connectivity
WLAN

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

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 1.0 reversible connector
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

Yes

-
NFC

-

Yes
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

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

Accelerometer, compass, fingerprint, gyroscope, light, proximity, in-display fingerprint sensor