ZTE Blade A51 vs vivo X100 Pro

ZTE Blade A51

vivo X100 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA
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, Cat6, 301 Mbps download, 51 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

Dual

Triple
Main camera

13 MP

50.3 MP, (wide) , f/1.8 , 1/0.98" , 100x digital zoom
2 MP

50 MP, (periscope telephoto) , f/2.5 , 100 mm, 1/2" , 0.7 µm, 4.3x optical zoom
119˚ , (ultrawide) , 50 MP, f/2.0 , 15 mm, 1/2.76"
Primary camera resolution

4160 x 3120 pixels

6560 x 4928 pixels
Primary camera video

1080p@30fps

8K, 4K, 1080p, gyro-EIS, Cinematic mode (4K)
Primary camera optics

-

Zeiss optics, Zeiss T* lens coating
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, phase detection autofocus

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, macro-mode, phase detection autofocus, laser autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

5 MP, f/2.0 , 1.0 µm

32 MP, f/2.0 , (wide)
Selfie camera resolution

2560 x 1920 pixels

6560 x 4928 pixels
Selfie camera features

Face unlock, face detection

Face unlock, face detection
Selfie camera video

1080p@30fps

1080p

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, 802.11ax, 802.11be
WLAN WiFi Hotspot

Yes

-
WLAN WiFi Direct

-

Yes
WiFi Tri-Band

-

Yes
USB

Type-C 2.0

Type-C 3.2
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.4
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes