Oppo F15 vs vivo V21s

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
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
5G network

-

5G band 1, 28, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
EV-DO speed

-

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

LTE-A

LTE-A, Cat12, 1200 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, glass

Plastic
SIM

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

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

160.2 mm

159.7 mm
Width

73.3 mm

73.9 mm
Thickness

7.9 mm

7.3 mm
Weight

172 g

176 / 177 g
Colors

Black, White

Blue, Gradient

Display
Display type

AMOLED capacitive touchscreen

AMOLED
Physical size

6.4 inches

6.44 inches
Resolution

1080 x 2400 pixels

1080 x 2404 pixels
Pixel density

408 ppi

409 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5

Scratch resistant
Multitouch

Yes

-

Main camera
Camera type

Quad

Triple
Main camera

48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm

64 MP, f/1.8 , 26 mm, 0.7 µm, (wide)
8 MP, f/2.3 , 13 mm, 1/4.0" , 1.12 µm

8 MP, f/2.2 , 16 mm, 1/4.0" , 1.12 µm, (ultrawide) , 120˚
2 MP, f/2.4 , 1/5.0" , 1.75 µm

2 MP, f/2.4 , (macro)
2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps, gyro-EIS

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

LED flash

LED flash
Camera features

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

Autofocus, continuous shooting, 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
Selfie camera

16 MP, f/2.0 , 1/3.1" , 1.0 µm

44 MP, f/2.0 , (wide) , 150 mm
Selfie camera resolution

4608 x 3456 pixels

-
Selfie camera features

-

Autofocus, face unlock, HDR, optical image stabilization
Selfie camera video

1080p@30fps

4K@30fps, 1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 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

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

Yes

Yes