Google Pixel 3a vs Google Pixel 4a

A spec-by-spec comparison of the Google Pixel 3a and the Google Pixel 4a, taken from their full specification sheets. Green marks the better value in each measured row.

Google Pixel 3a smartphone

Google Pixel 3a

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VS
Google Pixel 4a smartphone

Google Pixel 4a

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Head to head

Google Pixel 3aGoogle Pixel 4a
Our rating8/108/10
Battery3,000 mAh3,140 mAh
Wired charging18W18W
RAM (max)4 GB6 GB
Storage (max)64 GB128 GB
Screen size5.6 in5.81 in
Main camera12.2 MP12.2 MP
Weight (lower is lighter)147 g143 g
ReleasedMay 2019Aug 2020
Summary: Google Pixel 4a is ahead on battery, ram (max), storage (max), screen size.
★ Which should you buy? Google Pixel 4a is the stronger overall pick on the measured specs.

Researched with AI assistance by infozme.com from manufacturer and retailer sources — see how we research & rate phones.

Display

Google Pixel 3aGoogle Pixel 4a
TypeOLEDOLED, HDR
Size5.6 inches, 79.6 cm2 (~75.0% screen-to-body ratio)5.81 inches, 84.4 cm2 (~80.4% screen-to-body ratio)
Resolution1080 x 2220 pixels, 18.5:9 ratio (~441 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~443 ppi density)
ProtectionDragontrail GlassCorning Gorilla Glass 3

Platform

Google Pixel 3aGoogle Pixel 4a
OSAndroid 9.0 (Pie), upgradable to Android 12Android 10, upgradable to Android 13
ChipsetQualcomm Snapdragon 670 (10 nm)Qualcomm Snapdragon 730G (8 nm)
CPUOcta-core (2x2.0 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPUAdreno 615Adreno 618

Memory

Google Pixel 3aGoogle Pixel 4a
Card slotNoNo
Internal64GB 4GB RAM128GB 6GB RAM (UFS 2.1)

Main Camera

Google Pixel 3aGoogle Pixel 4a
Single12.2 MP, f/1.8, 28mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS—
FeaturesDual-LED flash, HDR, panorama, Night Sight, Top Shot, Portrait Mode, Super Res ZoomLED flash, Auto-HDR, panorama, Night Sight, Top Shot, Portrait Mode, Live HDR+, Motion Auto Focus, Frequent Faces
Video4K@30fps, 1080p@30/60/120fps4K@30fps, 1080p@30/60/120fps, 720p@240fps; gyro-EIS
Modules—12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS

Selfie Camera

Google Pixel 3aGoogle Pixel 4a
Single8 MP, f/2.0, 24mm (wide), 1.12µm—
FeaturesHDRAuto-HDR
Video1080p@30fps1080p@30fps
Modules—8 MP, f/2.0, 24mm (wide), 1.12µm

Battery

Google Pixel 3aGoogle Pixel 4a
TypeLi-Po 3000 mAh, non-removableLi-Po 3140 mAh, non-removable
Charging18W wired18W wired, PD2.0

Body

Google Pixel 3aGoogle Pixel 4a
Dimensions151.3 x 70.1 x 8.2 mm (5.96 x 2.76 x 0.32 in)144 x 69.4 x 8.2 mm (5.67 x 2.73 x 0.32 in)
Weight147 g (5.19 oz)143 g (5.04 oz)
BuildPolycarbonate unibody (plastic back)Glass front (Gorilla Glass 3), plastic back, plastic frame
SIMSingle SIM (Nano-SIM and/or eSIM)Nano-SIM and/or eSIM

Comms

Google Pixel 3aGoogle Pixel 4a
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE, aptX HD5.0, A2DP, LE, aptX HD
PositioningGPS, GLONASS, GalileoGPS, GLONASS, GALILEO, QZSS
NFCYesYes
RadioNoNo
USBUSB-C 2.0USB Type-C 3.1

Launch

Google Pixel 3aGoogle Pixel 4a
Announced2019, May 07August 3, 2020
StatusAvailable. Released 2019, May 15Released August 20, 2020

Frequently asked questions

Which has the better battery, Google Pixel 3a or Google Pixel 4a?

Google Pixel 4a — 3,000 mAh for the Google Pixel 3a versus 3,140 mAh for the Google Pixel 4a.

Which has more RAM, Google Pixel 3a or Google Pixel 4a?

Google Pixel 4a — 4 GB for the Google Pixel 3a versus 6 GB for the Google Pixel 4a.

Which is lighter, Google Pixel 3a or Google Pixel 4a?

Google Pixel 4a — 147 g for the Google Pixel 3a versus 143 g for the Google Pixel 4a.

Which is newer, Google Pixel 3a or Google Pixel 4a?

Google Pixel 4a — May 2019 for the Google Pixel 3a versus Aug 2020 for the Google Pixel 4a.

Is the Google Pixel 3a or the Google Pixel 4a rated higher?

We rate the Google Pixel 3a 8/10 and the Google Pixel 4a 8/10.

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