Asus Zenfone 9 vs vivo X Flip

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 34, 38, 39, 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

5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
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
5G speed

4.5 Gbps download, 0.9 Gbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

Aluminium alloy, glass, faux leather
SIM

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

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

146.5 mm

86.4 mm
Width

68.1 mm

75.3 mm
Thickness

9.1 mm

16.6 mm
Height unfolded

-

166.4 mm
Width unfolded

-

75.3 mm
Thickness unfolded

-

7.8 mm
Weight

169 g

198 g
Waterproof

IP68 (1.5m and 30 mins)

-
Dust proof

IP68

-
Colors

Black, Blue, Red, Silver

Black, Gold, Violet

Display
Display type

Super AMOLED

Foldable LTPO AMOLED
Physical size

5.9 inches

6.74 inches
Resolution

1080 x 2400 pixels

1080 x 2520 pixels
Pixel density

445 ppi

407 ppi
Display colors

16777216

1073741824
Protection

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

-
Display features

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

120Hz, HDR10+
Cover display

-

AMOLED
Cover display physical size

-

3 inches
Cover display resolution

-

422 x 682 pixels

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.19 GHz Cortex-X2

Single-core 3.0 GHz Cortex-X2
CPU(second)

Triple-core 2.75 GHz Cortex-A710

Triple-core 2.5 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-A510

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM8475 Snapdragon 8+ Gen 1

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 730

Adreno 730
Memory RAM

8, 16 GB

12 GB
Internal storage

128, 256 GB

256, 512 GB
Memory card

No

No
Storage

UFS 3.1

UFS 3.1

Main camera
Camera type

Dual

Dual
Main camera

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

(wide) , 50 MP, f/1.8 , 23 mm, 1/1.49" , 1.0 µm
(ultrawide) , 12 MP, f/2.2 , 113˚ , 14.4 mm, 1/2.93" , 1.4 µm

(ultrawide) , 12 MP, f/2.2 , 106˚ , 1/2.93" , 1.12 µm
Primary camera resolution

8190 x 6120 pixels

8190 x 6120 pixels
Primary camera video

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

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

LED flash

dual-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 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, phase detection autofocus, tracking 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/2.5
Selfie camera resolution

4032 x 3024 pixels

6560 x 5480 pixels
Selfie camera features

Dual-pixel phase detection autofocus, face unlock, HDR

HDR, face unlock, autofocus
Selfie camera video

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

1080p@30fps

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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
WLAN DLNA

Yes

-
USB

Type-C 3.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.3
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

-