alcatel A7 vs vivo U20

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 28(700)

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

42.2 Mbps

42.2 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
LTE speed

-

LTE, Cat12, 603 Mbps download, 102 Mbps upload
LTE-A speed

LTE-A, (2CA) Cat6, 300 Mbps download, 50 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Plastic
SIM

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

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

152.7 mm

162.2 mm
Width

76.5 mm

76.5 mm
Thickness

9 mm

8.9 mm
Weight

164 g

193 g
Colors

Metal Black

Black, Blue

Display
Display type

LTPS IPS LCD capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

5.5 inches

6.53 inches
Resolution

1080 x 1920 pixels

1080 x 2340 pixels
Pixel density

401 ppi

395 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant
Multitouch

Yes

Yes

Main camera
Camera type

-

Triple
Main camera

16 MP, f/2.0

16 MP, f/1.8
8 MP, f/2.2 , 13 mm
2 MP, f/2.4
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

1080p@30fps

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

phase detection autofocus

-
Primary camera flash

dual-LED (dual tone) flash

LED flash
Camera features

1/3" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

Autofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Mail

Push Mail

-
Java

No

-
Sensors

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

Accelerometer, compass, fingerprint, gyroscope, light, proximity