Oppo A78 4G vs Oppo F21 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66

LTE frequency band 1, 3, 5, 8, 38, 40, 41
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE

LTE-A, 391 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Aluminium alloy, glass
SIM

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

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

160 mm

159.9 mm
Width

73.2 mm

73.2 mm
Thickness

7.9 mm

7.5 mm
Weight

180 g

175 g
Waterproof

IP54

IPX4
Dust proof

IP54

IPX4
Build features

-

RGB ring light around the camera (notifications, charging progress)
Colors

Aqua Green, Black

Black, Orange

Display
Display type

AMOLED

AMOLED
Physical size

6.43 inches

6.43 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

409 ppi

409 ppi
Display colors

16777216

16777216
Protection

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

Corning Gorilla Glass 5
Display features

90Hz, 430 nits

90Hz, 430 nits (typ), 600 nits (HBM), 800 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.4 GHz Kryo 265 Gold

Quad-core 2.4 GHz Kryo 265 Gold
CPU(second)

quad-core 1.9 GHz Kryo 265 Silver

quad-core 1.9 GHz Kryo 265 Silver
Chipset

Qualcomm SM6225 Snapdragon 680 4G

Qualcomm SM6225 Snapdragon 680 4G
GPU

Adreno 610

Adreno 610
Memory RAM

8 GB

8 GB
Internal storage

128, 256 GB

128 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

1 TB

-
Storage

-

UFS 2.2

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 50 MP, f/1.8 , 77˚

(wide) , 64 MP, f/1.7 , 79˚ , 26 mm, 1/2.0" , 0.7 µm
(depth) , 2 MP, f/2.4

(microscope) , 2 MP, f/3.3 , 65˚
89˚ , (depth) , 2 MP, f/2.4 , 1.75 µm
Primary camera resolution

8190 x 6120 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps

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

LED flash

LED flash
Camera features

Autofocus, 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 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, contrast detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 8 MP, f/2.0 , 83˚ , 1/4" , 1.12 µm

(wide) , 32 MP, f/2.4 , 1/2.74" , 0.7 µm, 24 mm
Selfie camera resolution

3264 x 2448 pixels

-
Selfie camera features

Face unlock, HDR

Face unlock, HDR
Selfie camera video

1080p@30fps

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
WLAN WiFi Hotspot

-

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

v5.0

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes (market dependent)

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4500 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 67W (76% in 30 min)

SuperVOOC, 33W (100% in 60 min)
Reverse charging

-

Yes