alcatel 1x (2019) vs vivo Y51a

alcatel 1x (2019)

vivo Y51a

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

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

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 28(700), 38(2600), 40(2300)

LTE frequency band 1, 3, 5, 8, 40
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE-A, 603 Mbps download, 151 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Plastic
SIM

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

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

146.4 mm

163.9 mm
Width

68.8 mm

75.3 mm
Thickness

8.3 mm

8.4 mm
Weight

130 g

188 g
Colors

Black, Blue

Crystal Symphony, Titanium Sapphire

Main camera
Camera type

Dual

Triple
Main camera

13 MP, f/2.0 , 1/2.8" , 1.12 µm

48 MP, f/1.8 , 1/2.0" , 0.8 µm, (wide)
2 MP, f/2.4 , 1/5" , 1.65 µm

8 MP, f/2.2 , 1/4.0" , 1.12 µm, (ultrawide) , 120˚
(macro) , 2 MP, f/2.4
Interpolated resolution

16 MP

-
Primary camera resolution

4160 x 3120 pixels

8000 x 6000 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30fps, gyro-EIS
Primary camera flash

LED flash

LED flash
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

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

Selfie camera
Selfie camera type

-

Single
Selfie camera

5 MP, f/2.4 , 1/5" , 1.12 µm

16 MP, f/2.0 , 1/3.06" , 1.0 µm, (wide)
Selfie camera interpolated resolution

8 MP

-
Selfie camera resolution

2592 x 1944 pixels

4640 x 3456 pixels
Selfie camera video

720p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes