Oppo A18 vs vivo V27

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100 - global version; 850, 800, 2100 - Asia
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, 18, 19, 20, 26, 28, 38, 39, 40, 41 - global version; 1, 3, 5, 8, 28, 38, 40, 41 - Asia
5G network

-

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA - global version; 1, 3, 5, 8, 28, 78 SA/NSA - Asia
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.5 Mbps
LTE speed

LTE, 750 Mbps download, 211 Mbps upload

LTE-A
GPRS

Class 12

Yes
EDGE

Class 12

Yes

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 8 MP, f/2.0 , 78˚ , 1/4" , 1.12 µm

(wide) , 50 MP, f/1.9 , 1/1.56" , 1.0 µm, 20x digital zoom
(depth) , 2 MP, f/2.4 , 89˚ , 1/5" , 1.75 µm

(ultrawide) , 8 MP, f/2.2 , 120˚ , 1/4" , 1.12 µm, 16 mm
(macro) , 2 MP, f/2.4
Primary camera resolution

3260 x 2144 pixels

8190 x 6120 pixels
Primary camera video

1080p@30fps

4K@30/60fps, 1080p@30fps, gyro-EIS
Primary camera flash

LED flash

Ring-LED flash
Camera features

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

Autofocus, digital 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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 5 MP, f/2.2 , 76˚

(wide) , 50 MP, f/2.5
Selfie camera resolution

2560 x 1920 pixels

8160 x 6112 pixels
Selfie camera features

Face unlock

Face unlock, HDR, face detection, autofocus
Selfie camera video

1080p@30fps

4K@30/60fps, 1080p@30fps, gyro-EIS

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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.3

v5.3
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
NFC

No

Yes, eSE
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

-

Yes