vivo Y02 vs vivo Y51s

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 2100

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

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

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

-

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

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

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

-
LTE speed

LTE

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

Single

Triple
Main camera

8 MP, f/2.0

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

3264 x 2448 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, digital zoom, geotagging, panorama, HDR, touch focus, face detection, 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 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

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

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-