Pixel 4a Specs: A Complete Overview of Google’s Compact Powerhouse

Anthony Addington

a close up of a cell phone on a wooden surface

The Google Pixel 4a is a budget-friendly smartphone that delivers a smooth Android experience, an excellent camera, and a compact design. Launched as a more affordable alternative to Google’s flagship Pixel lineup, the Pixel 4a quickly became popular among users who value performance, software quality, and photography without a premium price tag.

Below is a detailed breakdown of the Pixel 4a specifications, features, and key highlights.


Google Pixel 4a: Key Specifications

General

  • Release Date: August 2020
  • Operating System: Android 10 (upgradable to later Android versions)
  • Processor: Qualcomm Snapdragon 730G
  • Build: Polycarbonate body

Display

  • Screen Size: 5.81 inches
  • Display Type: OLED
  • Resolution: 2340 × 1080 pixels (Full HD+)
  • Aspect Ratio: 19.5:9
  • Pixel Density: ~443 ppi
  • Features: Always-On Display, HDR support

The OLED display delivers deep blacks, vibrant colors, and excellent clarity for its size.


Performance

  • Chipset: Qualcomm Snapdragon 730G
  • CPU: Octa-core (2×2.2 GHz Kryo 470 Gold + 6×1.8 GHz Kryo 470 Silver)
  • GPU: Adreno 618
  • RAM: 6 GB LPDDR4x

The Pixel 4a handles everyday tasks, multitasking, and light gaming smoothly thanks to Google’s software optimization.


Storage

  • Internal Storage: 128 GB
  • Expandable Storage: No (no microSD card slot)

While storage isn’t expandable, 128 GB is generous for most users.


Camera

Rear Camera

  • Single Camera: 12.2 MP
  • Aperture: f/1.7
  • Sensor Size: 1/2.55″
  • Pixel Size: 1.4 µm
  • Features:
    • Night Sight
    • HDR+
    • Portrait Mode
    • Super Res Zoom
    • Optical & Electronic Image Stabilization

Front Camera

  • Selfie Camera: 8 MP
  • Aperture: f/2.0

Despite having only one rear camera, the Pixel 4a is widely praised for its image quality, especially in low-light conditions.


Battery

  • Battery Capacity: 3,140 mAh
  • Charging: 18W fast charging
  • Charging Port: USB‑C

The battery comfortably lasts a full day under moderate use.


Connectivity

  • 5G Support: No (LTE only)
  • Wi‑Fi: Wi‑Fi 5 (802.11 a/b/g/n/ac)
  • Bluetooth: 5.0
  • NFC: Yes
  • GPS: Yes (with A‑GPS, GLONASS, Galileo)
  • Headphone Jack: Yes (3.5 mm)

The inclusion of a headphone jack is a standout feature for many users.


Sensors & Security

  • Fingerprint Sensor: Rear-mounted
  • Other Sensors:
    • Accelerometer
    • Gyroscope
    • Proximity
    • Ambient light
    • Magnetometer

The fingerprint reader is fast, reliable, and conveniently placed.


Audio

  • Speakers: Stereo speakers
  • Microphones: Dual microphones
  • Audio Quality: Clear and balanced for calls and media

Dimensions & Weight

  • Dimensions: 144 × 69.4 × 8.2 mm
  • Weight: 143 g

The Pixel 4a is lightweight and easy to use with one hand.


Pixel 4a Highlights

  • Excellent camera performance for the price
  • Clean, bloat‑free Android experience
  • Guaranteed software and security updates from Google
  • Compact and lightweight design
  • OLED display and headphone jack

Final Thoughts

The Google Pixel 4a remains a strong choice for users who want a reliable smartphone with an outstanding camera and smooth software experience. While it lacks 5G and expandable storage, its strengths in photography, usability, and long-term updates make it a standout option in the budget and mid-range category.