Side by side comparison and review of Samsung Galaxy A51 and Huawei P40. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Samsung Galaxy A51 | Huawei P40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A515F/DSN | - | |
| Form Factor | Touch | Touch | |
| Height | 158.5 mm | 148.9 mm | Samsung Galaxy A51 has greater height than Huawei P40. |
| Width | 73.6 mm | 71.06 mm | Samsung Galaxy A51 has greater width than Huawei P40. |
| Depth | 7.9 mm | 8.5 mm | Samsung Galaxy A51 is narrower than Samsung Galaxy A51. |
| Weight | 172 g | 175 g | Samsung Galaxy A51 is lighter than Samsung Galaxy A51. |
| Body Colour | Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white | Silver frost | Black | |
| Protection | - | Dustproof, splashproof, waterproof | |
| Waterproof (Water-resistant) | - | Yes | Huawei P40 is waterproof. |
| IP rating | - | IEC 60529 IP53 | |
| Repairability Index | - | 7.9 (out of 10) | |
| SAR Value | 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) | 1.29 W/kg (body), 3.19 W/kg (limb), 0.49 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 | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/NM card |
| DISPLAY | Samsung Galaxy A51 | Huawei P40 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED | - | |
| Screen Size (Display Size) | 6.5" | 6.1" | Samsung Galaxy A51 has larger screen size than Huawei P40. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2340 x 1080 pixels | Samsung Galaxy A51 has better screen resolution than Huawei P40. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 408 ppi | 422 ppi | Huawei P40 has better pixel density than Samsung Galaxy A51. |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | Edge-to-Edge screen, Infinity O display | - |
| PROCESSOR | Samsung Galaxy A51 | Huawei P40 |
|---|
| Processor Type (CPU) | Samsung Exynos 9611 | Hisilicon Kirin 990 5G | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.86 GHz | Huawei P40 has higher clock speed than Samsung Galaxy A51. |
| 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) | - | Mali-G76 MC16 |
| MEMORY | Samsung Galaxy A51 | Huawei P40 |
|---|
| RAM | 4 GB | 8 GB | Huawei P40 has more RAM than Samsung Galaxy A51. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | 107 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | NM card - up to 256 GB |
| CAMERA | Samsung Galaxy A51 | Huawei P40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Huawei P40 has better camera resolution than Samsung Galaxy A51. |
| Sensor Size | - | 1/1.28" | |
| Sensor Name | - | Huawei Ultra Vision sensor | |
| Lens Aperture | F/2.0 | F/1.9 | Huawei P40 has better lens aperture than Samsung Galaxy A51. |
| Pixel Size | - | 2.44 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Huawei P40 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | - | |
| Camera Modes | Slow motion mode, Live Focus mode | - | |
| Light Source | LED flash | LED light | |
| Still Image Resolutions | - | 8192 x 6144 | |
| Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | 3840 x 2160 (4K) at 60 fps | |
| Camera Features (Functions) | AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur | Hybrid Zoom, Leica Triple Camera, Huawei AI Image Stabilization (AIS), RYYB colour filter array, Octa PD Focus, 4-in-1 pixel binning, AI Portrait Studio, AI AWB Algorithm, AI motion algorithm, Gallery Edit, HUAWEI Golden Snap, AI Remove Reflection, AI Remove Passersby, AI Best Moment, HUAWEI XD Fusion Engine |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 16 Megapixel | Huawei P40 has better second camera resolution than Samsung Galaxy A51. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 123 degree(s) | - | |
| Camera Features (2nd Camera) | - | 2.5cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 8 Megapixel | Huawei P40 has higher resolution third camera than Samsung Galaxy A51. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Huawei P40 has optical stabilisation of the third camera. |
| Optical Zoom | - | 3x | |
| Hybrid Zoom | - | 5x | |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | - | 30X Max Zoom |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Type (4th Camera) | Telephoto lens | - | |
| Lens Aperture (4th Camera) | F/2.2 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 32 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.2 | F/2.0 | Huawei P40 has better front lens aperture than Samsung Galaxy A51. |
| Focus Adjustment | Focus free | - | |
| Face Recognition (Face ID) | - | Face recognition | Huawei P40 has face detection. |
| Still Image Resolutions (Front) | - | 6528 x 4896 | |
| Video Resolutions (Front) | - | 3840 x 2160 (4K) at 60 fps |
| SECOND FRONT CAMERA |
|---|
| Camera Functions (2nd Front) | - | IR camera |
|---|
| BATTERY AND CHARGING | Samsung Galaxy A51 | Huawei P40 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 3800 mAh | Samsung Galaxy A51 has larger battery capacity than Huawei P40. |
|---|---|---|---|
| Fast Charging Technology | - | HUAWEI SuperCharge technology, Wireless HUAWEI SuperCharge | Huawei P40 has fast charging technology. |
| Recharge Time (Charging Time) | - | 1.5 hour(s) | |
| Wireless Charging | - | Yes | Huawei P40 can be charged wirelessly. |
| Talk Time | 1920 minutes | - | |
| Run Time Details | Active online usage (LTE): up to 15 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (video): up to 20 hrs Playback (audio): up to 87 hrs Talk (4G): up to 1920 min |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Samsung Galaxy A51 | Huawei P40 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Huawei P40 has more advanced generation mobile network. |
| Operating System | Android 10 | Android 10 | |
| User Interface | One UI | EMUI 10.1 | |
| Intelligent Assistant | Bixby | Celia | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
| COMMUNICATIONS | Samsung Galaxy A51 | Huawei P40 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 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 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 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 26, Band 28, Band 38, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 7, Band 8, Band 9, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 34, Band 38, Band 39, 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 700b, FDD 800 DD, FDD 850+, 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 850, FDD 2600, FDD 900, FDD 1800, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| 5G NR Band | - | N1, n3, n28, n38, n41, n77, n78, n79 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD TD 4500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.1 LE | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A51 | Huawei P40 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, LDAC, MP4, SBC, 3GP | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | MPEG-4, 3GP |
| FEATURES | Samsung Galaxy A51 | Huawei P40 |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, gesture, gravity sensor, laser sensor, colour temperature sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines | Multitasking, Face Unlock, MIMO technology, MU-MIMO technology, Huawei Share, Tiny-Core NPU (Neural Network Processing Unit), Dual Big Core, HUAWEI XD Fusion Engine, HUAWEI Golden Snap, HUAWEI MeeTime |
| OTHERS | Samsung Galaxy A51 | Huawei P40 |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C cable, USB-C headphones | |
|---|---|---|---|
| Compliant Standards | - | IEC 60529 IP53 | |
| Max Depth of Water Resistance | - | 1.5 m |
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