In depth comparison and review of Google Pixel 4a and Motorola Moto G31. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Google Pixel 4a | Motorola Moto G31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | G025J | - | |
| Form Factor | Touch | Touch | |
| Height | 144 mm | 161.89 mm | Motorola Moto G31 has greater height than Google Pixel 4a. |
| Width | 69.4 mm | 73.87 mm | Motorola Moto G31 has greater width than Google Pixel 4a. |
| Depth | 8.2 mm | 8.55 mm | Google Pixel 4a is narrower than Google Pixel 4a. |
| Weight | 143 g | 181 g | Google Pixel 4a is lighter than Google Pixel 4a. |
| Body Colour | Just black | Mineral grey | Baby blue | |
| Body Material | Polycarbonate | Plastic | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.19 W/kg (body), 1.18 W/kg (head) | 1.46 W/kg (body), 0.67 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Google Pixel 4a | Motorola Moto G31 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | OLED | OLED | |
| Screen Size (Display Size) | 5.8" | 6.4" | Motorola Moto G31 has larger screen size than Google Pixel 4a. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | Motorola Moto G31 has better screen resolution than Google Pixel 4a. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 443 ppi | 409 ppi | Google Pixel 4a has better pixel density than Motorola Moto G31. |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 100000:1 | - | |
| HDR | Yes | - | Google Pixel 4a has HDR. |
| Display Refresh Rate | - | 60 Hz | |
| Display Features | Always-on display, Now Playing, True black level, display with transmissive hole | Max Vision display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Google Pixel 4a | Motorola Moto G31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730 | MediaTek Helio G85 | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2 GHz | Google Pixel 4a has higher clock speed than Motorola Moto G31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Google Pixel 4a has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | ARM Mali-G52 MC2 |
| MEMORY | Google Pixel 4a | Motorola Moto G31 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | 4 GB | Google Pixel 4a has more RAM than Motorola Moto G31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | Google Pixel 4a has more internal memory than Motorola Moto G31. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Google Pixel 4a | Motorola Moto G31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12.2 Megapixel | 50 Megapixel | Motorola Moto G31 has better camera resolution than Google Pixel 4a. |
| Lens Aperture | F/1.7 | F/1.8 | Google Pixel 4a has better lens aperture than Google Pixel 4a. |
| Field of View (FoV) | 77 degree(s) | - | |
| Pixel Size | 1.4 μm | 1.28 μm | Google Pixel 4a has larger camera pixel size than Motorola Moto G31. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Google Pixel 4a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Self-Timer Delay | - | Yes | |
| Special Effects | Blur | HDR, Spot Colour | |
| HDR Mode | HDR+ | - | |
| Camera Modes | Portrait mode, Night Sight | Panorama, Pro mode, Timer mode, BurstShot, Watermark mode, Active photos, Cinemagraph, Portrait, Night Vision, AR stickers, Levelling, Macro Vision, Long exposure mode, Live filter, Capture Dual | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola Moto G31 has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap | Phase Detect Auto-Focus (PDAF), Barcode Scanner, Cutout, Quad Pixel technology, smart composition, RAW photo output, shot optimisation, Google Lens, High-res digital zoom (up to 8x), Assistive Grid |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 118 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Functions (2nd Camera) | - | Depth camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
|---|---|---|---|
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Motorola Moto G31 has better front camera resolution than Google Pixel 4a. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Google Pixel 4a has better front lens aperture than Google Pixel 4a. |
| Field of View (Front) | 84 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | 1.12 μm | Both phones have the same front camera pixel size. |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR, Spot Colour | |
| Camera Modes (Front) | - | Slow motion video, Pro mode, Timer mode, BurstShot, HYPERLAPSE, Watermark mode, portrait mode, Face Beauty, Timelapse video, Active photos, Cinemagraph, Portrait, Night Vision, Levelling, Gesture selfie, Group selfie, Long exposure mode, Live filter, Low Light AI Selfie, Capture Dual, Gesture Capture | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola Moto G31 has face detection. |
| Video Resolutions (Front) | 864 x 480, 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Front) | - | Video image stabilisation, RAW photo, Shot optimisation, Selfie animation, Assistive grid |
| BATTERY AND CHARGING | Google Pixel 4a | Motorola Moto G31 |
|---|
| Battery Capacity (Battery Size) | 3140 mAh | 5000 mAh | Motorola Moto G31 has larger battery capacity than Google Pixel 4a. |
|---|---|---|---|
| Fast Charging Technology | Power Delivery 2.0 | - | Google Pixel 4a has fast charging technology. |
| Run Time Details | - | Standard usage: up to 36 hrs |
| CELLULAR | Google Pixel 4a | Motorola Moto G31 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Android 11 | |
| Intelligent Assistant | Google Assistant | Google Assistant | |
| Navigation | GPS, GLONASS, Galileo, QZSS | GPS, A-GPS, GLONASS, Galileo |
| COMMUNICATIONS | Google Pixel 4a | Motorola Moto G31 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | - | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | - | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | - | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 14, Band 17, Band 18, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 66, Band 71 | - | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700 PS, FDD 700b, FDD 800 lower, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3, FDD 600 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Google Pixel 4a | Motorola Moto G31 |
|---|
| Supported Digital Audio Standards | AAC, apt-X, LDAC, apt-X HD | Dolby Atmos |
|---|
| FEATURES | Google Pixel 4a | Motorola Moto G31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, SAR sensor, gyroscope | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor, 3 years of security and OS updates, Google Cast | Dual microphones |
| OTHERS | Google Pixel 4a | Motorola Moto G31 |
|---|
| Included Accessories | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | Protective cover, USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | - |
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