DEXP B450 vs vivo Y51s

DEXP B450

vivo Y51s

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 900, 2100

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

-

LTE frequency band 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
5G network

-

5G band 1, 41, 78; SA/NSA
HSDPA speed

21 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
5G speed

-

3.6+ Gbps download
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

-

Triple
Main camera

5 MP

48 MP, f/1.8 , 25 mm, 1/2.0" , 0.8 µm
2 MP, f/2.4
2 MP, f/2.4
Primary camera resolution

2592 x 1944 pixels

8000 x 6000 pixels
Primary camera video

720p@30fps

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

LED

LED flash
Camera features

Continuous shooting, digital zoom, geotagging, panorama, HDR, 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, RAW

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
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth AptX

-

aptX HD
GPS

Yes, with A-GPS

Yes, with A-GPS
GALILEO

-

Yes
BDS

-

Yes