In depth comparison and review of Samsung Galaxy A31 and Google Pixel 4a. 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 | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A315G/DS | G025J | |
| Form Factor | Touch | Touch | |
| Height | 159.3 mm | 144 mm | Samsung Galaxy A31 has greater height than Google Pixel 4a. |
| Width | 73.1 mm | 69.4 mm | Samsung Galaxy A31 has greater width than Google Pixel 4a. |
| Depth | 8.6 mm | 8.2 mm | Google Pixel 4a is narrower than Samsung Galaxy A31. |
| Weight | 185 g | 143 g | Google Pixel 4a is lighter than Samsung Galaxy A31. |
| Body Colour | Prism crush black | Just black | |
| Body Material | - | Polycarbonate | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.68 W/kg (body), 0.488 W/kg (head) | 1.19 W/kg (body), 1.18 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 | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED | OLED | |
| Screen Size (Display Size) | 6.4" | 5.8" | Samsung Galaxy A31 has larger screen size than Google Pixel 4a. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2340 x 1080 pixels | Samsung Galaxy A31 has better screen resolution than Google Pixel 4a. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | - | 443 ppi | |
| Aspect Ratio | - | 19.5:9 | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | - | 100000:1 | |
| HDR | - | Yes | Google Pixel 4a has HDR. |
| Display Features | Night mode, Edge-to-Edge screen, Infinity U Display | Always-on display, Now Playing, True black level, display with transmissive hole | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Processor Type (CPU) | - | Qualcomm Snapdragon 730 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.2 GHz | Google Pixel 4a has higher clock speed than Samsung Galaxy A31. |
| 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 |
| MEMORY | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 6 GB | Google Pixel 4a has more RAM than Samsung Galaxy A31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Google Pixel 4a has more internal memory than Samsung Galaxy A31. |
| User Memory | 46.2 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | - |
| CAMERA | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12.2 Megapixel | Samsung Galaxy A31 has better camera resolution than Google Pixel 4a. |
| Lens Aperture | F/2.0 | F/1.7 | Google Pixel 4a has better lens aperture than Samsung Galaxy A31. |
| Field of View (FoV) | 80 degree(s) | 77 degree(s) | Samsung Galaxy A31 has larger lens field of view than Google Pixel 4a. |
| Pixel Size | - | 1.4 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Google Pixel 4a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | - | |
| Special Effects | - | Blur | |
| HDR Mode | - | HDR+ | |
| Camera Modes | Depth bokeh | Portrait mode, Night Sight | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 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 | |
| Camera Features (Functions) | Live Focus | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap |
| 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) | 123 degree(s) | - | |
| Minimum Focal Length (2nd Camera) | 40 mm | - | |
| Camera Functions (2nd Camera) | Macro camera | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Camera Functions (3rd Camera) | Depth camera | - |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 8 Megapixel | Samsung Galaxy A31 has better front camera resolution than Google Pixel 4a. |
| Lens Aperture (Front) | F/2.2 | F/2.0 | Google Pixel 4a has better front lens aperture than Samsung Galaxy A31. |
| Field of View (Front) | - | 84 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | Focus free | Focus free | |
| Video Resolutions (Front) | - | 864 x 480, 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 3140 mAh | Samsung Galaxy A31 has larger battery capacity than Google Pixel 4a. |
|---|---|---|---|
| Fast Charging Technology | - | Power Delivery 2.0 | Google Pixel 4a has fast charging technology. |
| Talk Time | 1980 minutes | - | |
| Run Time Details | Active online usage (LTE): up to 20 hrs Active online usage (Wi-Fi): up to 20 hrs Playback (video): up to 22 hrs Playback (audio): up to 97 hrs Talk (LTE): up to 1980 min |
- |
| CELLULAR | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Technology | WCDMA (UMTS) / GSM | CDMA2000 1X / GSM / WCDMA (UMTS) | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Android 10 | |
| User Interface | One UI | - | |
| Intelligent Assistant | - | Google Assistant | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, Galileo, QZSS |
| COMMUNICATIONS | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 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 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 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 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66 | 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 700b, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | 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 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | - | A2DP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | - |
| FEATURES | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader | |
| Additional Phone Features | Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Proximity Sensing | 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 |
| OTHERS | Samsung Galaxy A31 | Google Pixel 4a |
|---|
| Included Accessories | Power adapter | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | |
|---|---|---|---|
| Compliant Standards | - | HAC (Hearing Aid Compatible) |
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