Google Pixel 4a vs OnePlus 9 Pro 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.

9.1
Google Pixel 4a
9.3
OnePlus 9 Pro
Google Pixel 4a OnePlus 9 Pro
Released · Aug 20, 2020
Released · Apr 02, 2021
5.8-inch · 2340x1080px
6.7-inch · 3216x1440px
Single camera
Quad camera
6GB · 128GB
8GB · 128GB
3140 mAh
4500 mAh
Check prices Check prices

Availability

Officially announced
Aug 03, 2020 Mar 23, 2021
Prices (MSRP)
$349 $969

Design

Dimensions
5.67 x 2.73 x 0.32 inches
144 x 69.4 x 8.2 mm
6.43 x 2.90 x 0.34 inches
163.2 x 73.6 x 8.7 mm
Weight
5.04 oz / 143.0 g 6.95 oz / 197.0 g
Materials
Back: Plastic
Frame: Plastic
Back: Glass (Corning Gorilla Glass)
Resistance
Water, Dust; IP68
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
Just black Morning Mist, Forest Green, Stellar Black

Display

Size
5.8-inch, 82.53% screen-to-body 6.7-inch, 89.79% screen-to-body
Type
OLED, 60Hz, HDR AMOLED, 120Hz, HDR
Resolution
2340x1080px, 19.5:9 ratio, 444 PPI 3216x1440px, 20.1:9 ratio, 526 PPI
Protection
Corning Gorilla Glass 3 Corning Gorilla Glass
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
2 (Good) 2.2 (Average)

Hardware

System chip
Snapdragon 730G SM7150-AA (8 nm) Snapdragon 888 (5 nm)
Processor
Octa-core
2200 MHz
Kryo 470
Octa-core
Kryo 680
GPU
Adreno 618 Adreno 660
Memory
6GB (LPDDR4)/128GB (UFS 2.1) 8GB (LPDDR5)/128GB (UFS 3.1)
12GB/256GB
Storage expansion
not expandable not expandable
OS
Android (12, 11, 10) Android (11)

Battery

Type
3140 mAh, Li - Polymer 4500 mAh
Charging
USB Power Delivery OnePlus Warp Charge
Qi wireless charging
Charge speed
Wired: 18.0W Wired: 65.0W
Wireless: 50.0W
PhoneArena Battery Tests
Battery Life Estimate
4h 15min
Browsing
9h 27min
Video
6h 48min
Gaming
4h 51min
Battery Life Estimate
5h 50min
Browsing
11h 29min
Video
9h 16min
Gaming
9h 6min

Camera

Rear
Single camera Quad camera
Main camera
12.2 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
48 MP (OIS, 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
8 MP (Ultra-wide)
Optical zoom: 3.3x
Aperture size: F2.4
Focal Length: 77 mm
Pixel size: 1 μm
Fourth camera
2 MP (Black and White)
Flash
LED Dual LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps)
EIS
8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps), 720p (480 fps)
OIS, HDR, Continuous autofocus, EIS
Front
8 MP
Video capture: 1080p
16 MP (EIS)

Connectivity & Features

Bluetooth
5.1 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 3.1 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/T4
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC NFC

Multimedia

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

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78, NSA
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 66, 71 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 66, 71
4G (TDD) Bands
38, 39, 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
Dual SIM
Yes
SIM type
Nano SIM, eSIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Jun 25, 2020
FCC ID value: A4RG025J
Date approved: Mar 24, 2021
FCC ID value: 2ABZ2-EF14A
Measured SAR
Head: 1.18 W/kg
Body: 1.19 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.00 W/kg
Head: 1.19 W/kg
Body: 0.75 W/kg
Simultaneous Transmission: 1.52 W/kg
Wireless Router: 1.19 W/kg

Alternative variants

with 12GB RAM and 256GB storage
Memory 12GB/256GB
Prices (MSRP) $1069
FCC OKs Cingular\'s purchase of AT&T Wireless