Google Pixel 3a vs OnePlus 9 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
9.0
Google Pixel 3a
9.0
OnePlus 9
Google Pixel 3a OnePlus 9
Released · May 07, 2019
Released · Apr 02, 2021
5.6-inch · 2220x1080px
6.5-inch · 2400x1080px
Single camera
Triple camera
4GB · 64GB
8GB · 128GB
3000 mAh
4500 mAh
Check prices Check prices

Availability

Officially announced
May 07, 2019 Mar 23, 2021
Prices (MSRP)
$399 $729

Design

Dimensions
5.96 x 2.76 x 0.32 inches
151.3 x 70.1 x 8.2 mm 		6.30 x 2.92 x 0.34 inches
160 x 74.2 x 8.7 mm
Weight
5.19 oz / 147.0 g 6.77 oz / 192.0 g
Materials
Back: Plastic Back: Glass (Corning Gorilla Glass)
Frame: Aluminum
Biometrics
Fingerprint (touch) 2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Left: Volume control; Right: Lock/Unlock key, Other
Colors
Black, Purple, White Winter Mist, Arctic Sky, Astral Black

Display

Size
5.6-inch, 73.93% screen-to-body 6.5-inch, 87.27% screen-to-body
Type
OLED AMOLED, 120Hz, HDR
Resolution
2220x1080px, 18.5:9 ratio, 444 PPI 2400x1080px, 20:9 ratio, 402 PPI
Protection
Dragontrail Corning Gorilla Glass
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
1.7 (Good) 2.5 (Average)
Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 670 SDM670 (10 nm) Snapdragon 888 (5 nm)
Processor
Octa-core
2000 MHz
Kryo 360 		Octa-core
2840 MHz
Kryo 680
GPU
Adreno 615 Adreno 660
Memory
4GB (LPDDR4)/64GB (eMMC) 8GB (LPDDR5)/128GB (UFS 3.1)
12GB/256GB
Storage expansion
not expandable not expandable
OS
Android (12, 11, 10, 9.0 Pie) Android (11)

Battery

Type
3000 mAh 4500 mAh
Charging
USB Power Delivery OnePlus Warp Charge
Qi wireless charging
Charge speed
Wired: 65.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
9h 48min
Video
6h 30min
Gaming
Untested
Battery Life Estimate
5h 50min
Browsing
11h 29min
Video
9h 16min
Gaming
9h 6min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera Triple camera
Main camera
12.2 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 28 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		48 MP (PDAF)
Aperture size: F1.8
Focal length: 23 mm
Sensor size: 1/1.4"
Pixel size: 1.12 μm
Second camera
50 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/1.56"
Third camera
2 MP (Black and White)
Flash
Dual LED Dual LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps)
EIS 		8K UHD (30 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (480 fps)
HDR, Continuous autofocus, EIS
Front
8 MP
Video capture: 1080p 		16 MP (EIS)

Connectivity & Features

Bluetooth
5.0 5.2
WLAN
a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac 		a,b,g,n,ac,Wi-Fi 6,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0 Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, VoIP, Tethering, Computer sync, OTA sync NFC

Multimedia

Headphones
3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Loudspeaker, Multiple speakers
Features
aptX-HD Dolby Atmos
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 66, 71
4G (TDD) Bands
38, 40, 41 38, 39, 40, 41, 46, 48
3G Bands
1, 2, 4, 5, 8 1, 2, 4, 5, 8, 9, 19
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM Nano SIM
HD Voice
Yes

Regulatory Approval

FCC approval
Date approved: Feb 25, 2019
FCC ID value: A4RG020G 		Date approved: Mar 24, 2021
FCC ID value: 2ABZ2-EF136
Measured SAR
Head: 1.15 W/kg
Body: 1.13 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.19 W/kg 		Head: 1.20 W/kg
Body: 0.78 W/kg
Simultaneous Transmission: 1.48 W/kg
Wireless Router: 1.18 W/kg

Alternative variants
4G (FDD) Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 66, 71
With 12GB RAM and 256GB storage
Memory 12GB/256GB
Prices (MSRP) $829
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