Asus Zenfone 9 vs Oppo F21 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - A version; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - B version; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 42, 66, 71 - C version

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

5G band 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78 - A version; 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 41, 77, 78 - B version; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78 - C version

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HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (5CA), Cat20, 2000 Mbps download, 211 Mbps upload

LTE-A, 391 Mbps download, 150 Mbps upload
5G speed

4.5 Gbps download, 0.9 Gbps upload

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GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus), polymer back, aluminum frame

Aluminium alloy, glass
SIM

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

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

146.5 mm

159.9 mm
Width

68.1 mm

73.2 mm
Thickness

9.1 mm

7.5 mm
Weight

169 g

175 g
Waterproof

IP68 (1.5m and 30 mins)

IPX4
Dust proof

IP68

IPX4
Build features

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

Black, Blue, Red, Silver

Black, Orange

Display
Display type

Super AMOLED

AMOLED
Physical size

5.9 inches

6.43 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

445 ppi

409 ppi
Display colors

16777216

16777216
Protection

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

Corning Gorilla Glass 5
Display features

Always-on display, 120Hz, HDR10+, 1100 nits (peak)

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

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.19 GHz Cortex-X2

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

Triple-core 2.75 GHz Cortex-A710

quad-core 1.9 GHz Kryo 265 Silver
CPU(third)

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM8475 Snapdragon 8+ Gen 1

Qualcomm SM6225 Snapdragon 680 4G
GPU

Adreno 730

Adreno 610
Memory RAM

8, 16 GB

8 GB
Internal storage

128, 256 GB

128 GB
Memory card

No

microSD, microSDHC, microSDXC
Storage

UFS 3.1

UFS 2.2

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 50 MP, f/1.9 , 84˚ , 23.8 mm, 1/1.56" , 1.0 µm

(wide) , 64 MP, f/1.7 , 79˚ , 26 mm, 1/2.0" , 0.7 µm
(ultrawide) , 12 MP, f/2.2 , 113˚ , 14.4 mm, 1/2.93" , 1.4 µm

(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

8K@24fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR

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

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical 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, laser autofocus, RAW

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

(standard) , 12 MP, f/2.5 , 27.5 mm, 1/2.93" , 1.22 µm

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

4032 x 3024 pixels

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Selfie camera features

Dual-pixel phase detection autofocus, face unlock, HDR

Face unlock, HDR
Selfie camera video

4K@30fps, 1080p@30/60fps

1080p@30fps, gyro-EIS

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
WLAN DLNA

Yes

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USB

Type-C 3.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD, aptX Adaptive

aptX HD
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

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