Google Pixel 3 vs vivo X21 UD

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

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

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

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 32(1500), 38(2600), 40(2300), 41(2500), 66(1700/2100), 71(600)

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

LTE-A(5CA), Cat16, 1024 Mbps download, 75 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

P-OLED capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

5.5 inches

6.28 inches
Resolution

1080 x 2160 pixels

1080 x 2280 pixels
Pixel density

443 ppi

402 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 5

-
Multitouch

Yes

Yes
Display features

Always-on display, HDR

-

Main camera
Camera type

-

Dual
Main camera

12 MP, f/1.8 , 28 mm, 1/2.55" , 1.4 µm

12 MP, f/1.8 , 1/2.5" , 1.4 µm
5 MP, f/2.4
Primary camera resolution

4032 x 3024 pixels

4032 x 3024 pixels
Primary camera video

160p@30fps, 1080p@30/60/120fps, 720p@240fps, 1080p@30fps

1080p@30fps
Primary camera Autofocus

-

dual pixel phase detection autofocus
Primary camera flash

dual-LED flash

LED flash
Primary camera phase detection autofocus

phase detection with Dual Pixel

-
Camera features

Autofocus, continuous shooting, digital 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, RAW

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

103

-
DxOMark video

98

-
DxOMark camera score

102

-

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 1.0 reversible connector

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

Yes

-

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging Push Email

-

Push Email
Sensors

Accelerometer, barometer, compass, gyroscope, fingerprint, hall, light, proximity

Fingerprint (under display), accelerometer, compass, proximity