Google Pixel 3a vs OnePlus 9

Network
2G network

GSM 850, 900, 1800, 1900, CDMA 800, 1900, 10(800)

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

HSDPA 850, 900, 1700/2100, 1900, 2100; CDMA2000 1xEV-DO

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 40(2300), 41(2500), 66(1700/2100)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71 - North America; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41, 46 - IN; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41 - China
5G network

-

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU; 1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA - North America; 41, 78 SA/NSA - IN; 1, 3, 28, 41, 78, 79 SA/NSA - China
HSDPA speed

42 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

3.1 Mbps download, 1.8 Mbps upload

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE Cat 11, 600 Mbps download, 75 Mbps upload

LTE-A (5CA), Cat20, 2000 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Front glass, plastic body

Glass front (Gorilla Glass), glass back (Gorilla Glass), plastic frame
SIM

Single SIM (Nano-SIM)

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

152.4 mm

160 mm
Width

71.1 mm

74.2 / 73.9 (EU, North America/IN, China) mm
Thickness

7.6 mm

8.7 / 8.1 (EU, North America/IN, China) mm
Weight

147 g

192 / 183 (EU, North America/IN, China) g
Waterproof

-

IP68
Dust proof

-

IP68
Colors

Black, White, Purple

Black, Sky, Winter Mist

Display
Display type

OLED capacitive touchscreen

Fluid AMOLED
Physical size

5.6 inches

6.55 inches
Resolution

1080 x 2220 pixels

1080 x 2400 pixels
Pixel density

441 ppi

402 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Dragontrail glass

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

Yes

-
Display features

Always-on display

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

Main camera
Camera type

Single

Triple
Main camera

12 MP, f/1.8 , 28 mm, 1/2.55" , 1.4 µm

48 MP, f/1.8 , 23 mm, 1/1.43" , 1.12 µm, (wide)
(ultrawide) , 50 MP, f/2.2 , 14 mm, 1/1.56" , 1.0 µm
(depth) , 2 MP, f/2.4
Primary camera resolution

4032 x 3024 pixels

8000 x 6000 pixels
Primary camera video

2160p@30fps, 1080p@120fps, 720p@240fps

8K@30fps, 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Primary camera flash

dual LED flash

dual-LED flash
Camera features

Autofocus, continuous shooting, digital 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, RAW, phase detection with Dual Pixel

Autofocus, continuous shooting, digital 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, contrast detection autofocus, Hasselblad Pro mode, dual native ISO, 2.2 OCL
DxOMark photo

104

-
DxOMark video

95

-
DxOMark camera score

101

-

Selfie camera
Flash

LED flash

-
Selfie camera type

-

Single
Selfie camera

8 MP, f/2.0 , 24 mm, 1.12 µm

16 MP, f/2.4 , 1.0 µm, (wide) , 1/3.06"
Selfie camera resolution

3264 x 2448 pixels

4640 x 3456 pixels
Selfie camera features

-

Face unlock, HDR, digital image stabilization
Selfie camera video

1080p@30fps

1080p@30fps, gyro-EIS

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

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 reversible connector

Type-C 3.1
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

-
BDS

-

Yes
SBAS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity, light, hall

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity