OnePlus 9 vs Google Pixel 4a Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.5 inches

5.8 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 402 PPI

2340 x 1080 pixels, 19.5:9 ratio, 444 PPI

Technology:

AMOLED

OLED

Refresh rate:

120Hz

60Hz

Screen-to-body:

87.27 %

82.53 %

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass), Ambient light sensor, Proximity sensor

HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 888 (5 nm)

Qualcomm Snapdragon 730G SM7150-AA (8 nm)

Processor:

Octa-core, 2840 MHz, Kryo 680, 64-bit

Octa-core, 2200 MHz, Kryo 470, 64-bit

GPU:

Adreno 660

Adreno 618

RAM:

8GB LPDDR5

6GB LPDDR4

Internal storage:

128GB (UFS 3.1), not expandable

128GB (UFS 2.1), not expandable

Device type:

Smartphone

OS:

Android (11), OxygenOS UI

Android (12, 11, 10)

Battery

Capacity:

4500 mAh

3140 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

OnePlus Warp Charge, Qi wireless charging

USB Power Delivery

Max charge speed:

Wired: 65.0W; Wireless: 15.0W

Wired: 18.0W

Camera

Rear:

Triple camera

Single camera

Main camera:

48 MP (PDAF)

12.2 MP (OIS, PDAF)

Specifications:

F1.8; 23 mm; 1/1.4"; 1.12 μm

F1.7; 27 mm; 1/2.55"; 1.4 μm

Second camera:

50 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 14 mm; Sensor size: 1/1.56"

Third camera:

2 MP (Black and White)

Flash:

Dual LED

LED

Video recording:

7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps)

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features:

HDR, Continuous autofocus, EIS

EIS

Front:

16 MP (EIS)

8 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.30 x 2.92 x 0.34 inches (160 x 74.2 x 8.7 mm)

5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)

Weight:

6.77 oz (192.0 g)

5.04 oz (143.0 g)

Materials:

Back: Glass (Corning Gorilla Glass); Frame: Aluminum

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, In-screen fingerprint

Fingerprint (touch)

Keys:

Left: Volume control; Right: Lock/Unlock key, Other

Right: Volume control, Lock/Unlock key

Colors:

Winter Mist, Arctic Sky, Astral Black

Just black

Cellular

5G:

n1, n2, n3, n5, n7, n8, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78

4G (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

4G (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

3G:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900), 9(1700), 19(800)

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM

Nano SIM, eSIM

Multimedia

Headphones:

No 3.5mm jack

3.5mm jack

Speakers:

Earpiece, Loudspeaker, Multiple speakers

Earpiece, Multiple speakers

Features:

Dolby Atmos

aptX, aptX-HD

Screen mirroring:

Wireless screen share

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.2

5.1

Wi-Fi:

802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 3.1

Features:

Charging, Headphones port, Mass storage device

Charging

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass

Accelerometer, Gyroscope, Compass, Barometer

Other:

NFC

Hearing aid compatible:

M3, T4

Regulatory Approval

FCC approval:

Date approved:

Mar 24, 2021

Jun 25, 2020

FCC ID value:

2ABZ2-EF136

A4RG025J

Measured SAR:

Head:

1.20 W/kg

1.18 W/kg

Body:

0.78 W/kg

1.19 W/kg

Simultaneous Transmission:

1.48 W/kg

1.59 W/kg

Wireless Router:

1.18 W/kg

1.00 W/kg

Buyers information

Price:

$ 729

$ 349

In The Box:

Warp Charge 65 Power Adapter, Warp Charge Type-C to Type-C Cable, Quick Start Guide, Welcome Letter, Safety Information and Warranty Card, OnePlus Sticker, SIM Tray Ejector

18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool