Asus Zenfone 9 vs Google Pixel 9a Specs Comparison

Availability

Officially announced
Jul 28, 2022	Mar 19, 2025
Prices (MSRP)
	$499

Design

Dimensions
5.77 x 2.68 x 0.36 inches 146.5 x 68.1 x 9.1 mm	6.09 x 2.88 x 0.35 inches (~0.37 inches with camera bump) 154.7 x 73.2 x 8.9mm (~9.4 mm with camera bump)
Weight
5.96 oz (169.0 g)	6.56 oz (186.0 g)
Materials
	Back: Plastic Frame: Aluminum
Resistance
Yes; IP68	Water, Dust; IP68
Biometrics
Fingerprint (touch)	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
	Obsidian, Porcelain, Iris, Peony

Display

Size
5.9-inch, 84.24% screen-to-body	6.3-inch, 79.39% screen-to-body
Type
Super AMOLED, 120Hz, 1100 nits	P-OLED, 120Hz, HDR, 2700 nits
Resolution
2400x1080px, 20:9 ratio, 446 PPI	2424x1080px, 20:9 ratio, 421 PPI
Protection
Corning Gorilla Glass Victus	Corning Gorilla Glass 3

Hardware

System chip
Snapdragon 8+ Gen1 SM8475 (4 nm)	Google Tensor G4 (4 nm)
Processor
Octa-core 1x3.2GHz Cortex-X2 3x2.75G​Hz Cortex-A710 4x2.0​Ghz Cortex-A510	Octa-core 1x3.1GHz Cortex-X4 3x2.6GH​z Cortex-A720 4x1.9​2GHz Cortex-A520
GPU
Adreno 730	Mali-G715 MC7
Memory
8GB (LPDDR5)/128GB (UFS 3.1) 8GB/256GB 16GB/256GB	8GB (LPDDR5X)/128GB (UFS 3.1) 8GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (12)	Android (15)

Battery

Type
4300 mAh	5100 mAh, Li - Ion
Charging
Fast charging	Fast charging Qi wireless charging
Charge speed
Wired: 30.0W	Wired: 23.0W Wireless: 7.5W

PhoneArena Battery Tests

Battery Life Estimate

7h 37min

Browsing

17h 13min

Video

12h 14min

Gaming

8h 12min

Battery Life Estimate

8h 11min

Browsing

19h 39min

Video

10h 57min

Gaming

12h 30min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Dual camera
Main camera
50 MP (OIS, PDAF) Aperture size: F1.9 Sensor size: 1/1.56"	48 MP (OIS, PDAF) Aperture size: F1.7 Focal length: 25 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP Aperture size: F2.2 Focal Length: 14.4 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	13 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/3.1" Pixel size: 1.12 μm
Flash
LED	Dual LED
Video recording
8K UHD (24 fps), 4K UHD (120 fps), 1080p (240 fps)	4K UHD (60 fps), 1080p (240 fps)
Front
12 MP	13 MP Video capture: 4K UHD (30 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

134

Overall

143

Photo

126

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.2	5.3
WLAN
a,b,g,n,ac,Wi-Fi 6 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
Other
NFC	NFC

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n77, n78	n1, n2, n3, n5, n7, n8, n20, n28, n48, n66, n71, n77, n78, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
34, 38, 39, 40, 41, 42	38, 41
3G Bands
2, 3, 5, 8	1, 2, 4, 5, 6, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM	Nano SIM, eSIM

Alternative variants

With 256GB internal storage

Memory	256GB

With 512GB internal storage

Memory	512GB

With 16GB RAM and 256GB internal storage

Memory	16GB/256GB

Links

Full specifications
Asus Zenfone 9 Specs	Google Pixel 9a Specs
PhoneArena Review
Asus Zenfone 9 Review	Google Pixel 9a Review