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Google Pixel 4a, 128 GB

 ·  ☕ 4 min read

Technical Specifications

Google Pixel 4a, 128 GB Features

  • Full-screen 5.8-inch (147.6 mm) display with transmissive hole
  • Qualcomm Snapdragon 730G4 processor
  • 6 GB LPDDR4x RAM and 128 GB storage
  • 5.7 height x 2.7 width x 0.3 depth (inches)
  • 3140 mAh2 battery
  • 12.2 MP dual-pixel rear camera with autofocus with dual pixel phase detection
  • 8 MP front camera
  • USB-C with fast charging
  • Wi-Fi 2.4 GHz + 5 GHz, 802.11a/b/g/n/ac 2x2 MIMO
  • Bluetooth 5.0 + LE, A2D
  • Polycarbonate unibody and Corning Gorilla Glass

Google Pixel 4a, 128 GB Tech Specs


Full-screen 5.8-inch (147.6 mm) display with transmissive hole
FHD+ (1080 x 2340) OLED at 443 ppi
19.5:9 aspect ratio
Always-on display
Now Playing
100,000:1 super contrast ratio
True black level
HDR support
Full 24-bit depth for 16 million colors

Dimensions and Weight

5.7 height x 2.7 width x 0.3 depth (inches)
144 height x 69.4 width x 8.2 depth (mm)
143 g


3140 mAh

Memory and Storage

128 GB storage


Qualcomm Snapdragon 730G
2.2 GHz + 1.8 GHz, 64-bit Octa-Core
Adreno 618
Titan M Security Module

Rear camera

12.2 MP dual-pixel
1.4 μm pixel width
Autofocus with dual pixel phase detection
Optical + electronic image stabilization
ƒ/1.7 aperture
77° field of view

Front Camera

8 MP
1.12 μm pixel size
ƒ/2.0 aperture
Fixed focus
84° field of view

Rear Camera Video

1080p @ 30 FPS, 60 FPS, 120 FPS
720p @ 30 FPS, 60 FPS, 240 FPS
4K @ 30 FPS

Front Camera Video

1080p @ 30 FPS
720p @ 30 FPS
480p @ 30 FPS


Proximity / Ambient light sensor
Accelerometer / Gyrometer
Pixel Imprint – back-mounted fingerprint sensor for fast unlocking
Android Sensor Hub


USB-C 18W adapter with USB-PD 2.0
18W fast charging

Buttons and Ports

USB Type-C 3.1 Gen 1
3.5 mm audio jack
Power button
Volume controls


Single Nano SIM

Media and Audio

Stereo speakers
2 microphones
Noise suppression

Wireless and Location

Wi-Fi 2.4 GHz + 5 GHz 802.11a/b/g/n/ac 2x2 MIMO
Bluetooth 5.0 + LE, A2DP (HD codecs: AptX, AptX HD, LDAC, AAC)
Google Cast


Up to 3xCA DL, 2x2 MIMO
CAT 12 capable of 600 Mbps download, CAT 5 capable of 75 Mbps upload
Model G025J
GSM/EDGE: Quad-band (850, 900, 1800, 1900 MHz)
UMTS/HSPA+/HSDPA: Bands 1/2/4/5/8
LTE: Bands B1/2/3/4/5/7/8/12/13/14/17/18/20/25/26/28/29/30/38/39/40/41/66/71


Just Black
Barely Blue (a Google Store exclusive. US only.)

Hearing Aid Compatibility

M3/T4 HAC Rating
Google’s devices meet the hearing aid compatibility (HAC) requirements set by the FCC

Security and OS Updates

The latest Android 10 + the new Google Assistant with Lens
Minimum 3 years of OS and security updates


Polycarbonate unibody
Corning Gorilla Glass 3 cover glass


AR Core

Ratings and Reviews

CellAZ rating based on 1,300+ reviews
User Reviews
  • 3.0 of 5 at Walmart (5+ reviews)
  • 4.6 of 5 at Bestbuy (1,300+ reviews)
  • 4.9 of 5 at Target (9+ reviews)

Our Google Pixel 4a, 128 GB Review

✅ Reasons to buy

  • it has a full-sized 3.5mm headphone jack
  • Very responsive fingerprint reader
  • a really great camera
  • 10 hours screen-on time with the battery
  • more affordable than the Google Pixel 4a with 5G
  • available unlocked

❌ Reasons not to buy

  • not water or dust resistance
  • no facial recognition, but this isn’t really a bad thing
  • not a high-end 4K screen - it has a 1080p OLED display

⚖️ The Verdict

The Google Pixel 4a is one of the most affordable phones with an OLED screen but it feels more like an update to the successful Pixel 3a. It has more memory and storage and a slightly better CPU. Overall, it is one of the best mid-range priced cell phones - it lands right in the center of price, quality, and performance. A good buy for sure - it has many of the features of the high-end flagship phones without the price.

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Carmen G.
Carmen G.
Hi, I'm Carmen Gonzalez. I've been a passionate mobile phone enthusiast for years now and created cellAZ to share my knowledge and love of cellphones. Have fun touching glass, be in touch!

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