In depth comparison and review of Google Pixel 4a and Samsung Galaxy A51 5G. 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 | Samsung Galaxy A51 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | G025J | SM-A516B/DS | |
| Form Factor | Touch | Touch | |
| Height | 144 mm | 158.9 mm | Samsung Galaxy A51 5G has greater height than Google Pixel 4a. |
| Width | 69.4 mm | 73.6 mm | Samsung Galaxy A51 5G has greater width than Google Pixel 4a. |
| Depth | 8.2 mm | 8.7 mm | Google Pixel 4a is narrower than Google Pixel 4a. |
| Weight | 143 g | 187 g | Google Pixel 4a is lighter than Google Pixel 4a. |
| Body Colour | Just black | Prism cube black | Prism cube white | |
| Body Material | Polycarbonate | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.19 W/kg (body), 1.18 W/kg (head) | 1.555 W/kg (body), 0.496 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 | Samsung Galaxy A51 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | OLED | Infinity-O Super AMOLED | |
| Screen Size (Display Size) | 5.8" | 6.5" | Samsung Galaxy A51 5G has larger screen size than Google Pixel 4a. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | Samsung Galaxy A51 5G 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 | Always-on display, Now Playing, True black level, display with transmissive hole | Edge-to-Edge screen | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730 | - | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2.2 GHz | Both phones have the same clock speed. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | - |
| MEMORY | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 105.3 GB | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 1 TB |
| CAMERA | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12.2 Megapixel | 48 Megapixel | Samsung Galaxy A51 5G has better camera resolution than Google Pixel 4a. |
| Lens Aperture | F/1.7 | F/2.0 | Google Pixel 4a has better lens aperture than Google Pixel 4a. |
| Field of View (FoV) | 77 degree(s) | - | |
| 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 | Bokeh effect | |
| HDR Mode | HDR+ | - | |
| Camera Modes | Portrait mode, Night Sight | Slow motion video | |
| 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 | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 480 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap | Live Focus, background blur |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.2 | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 32 Megapixel | Samsung Galaxy A51 5G 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 | - | |
| 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 | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Battery Capacity (Battery Size) | 3140 mAh | 4500 mAh | Samsung Galaxy A51 5G has larger battery capacity than Google Pixel 4a. |
|---|---|---|---|
| Fast Charging Technology | Power Delivery 2.0 | - | Google Pixel 4a has fast charging technology. |
| Talk Time | - | 1380 minutes | |
| Run Time Details | - | Talk (4G): up to 1380 min Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 17 hrs Playback (video): up to 19 hrs Playback (audio): up to 86 hrs |
| CELLULAR | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Samsung Galaxy A51 5G has more advanced generation mobile network. |
| Operating System | Android 10 | - | |
| Intelligent Assistant | Google Assistant | Bixby | |
| Navigation | GPS, GLONASS, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 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 | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 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 | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | - | N41, n78 | |
| 5G NR Frequency | - | TDD TD 2500, TDD TD 3500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+ | |
| 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 | SMS, MMS |
| MEDIA | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Supported Digital Audio Standards | AAC, apt-X, LDAC, apt-X HD | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 |
| FEATURES | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| 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, barometer, magnetometer, gyro sensor | Accelerometer, ambient light sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (under display) | |
| 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 | Fast Charging, Samsung KNOX, Bixby Vision, Bixby Routines, Virtual Proximity Sensing |
| OTHERS | Google Pixel 4a | Samsung Galaxy A51 5G |
|---|
| Included Accessories | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | Power adapter | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | - |
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