Huawei P20 Pro vs. Samsung Galaxy A51

Phone Comparison, Reviews and Tests

Detailed comparison and review of Huawei P20 Pro and Samsung Galaxy A51. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

Huawei P20 Pro vs. Samsung Galaxy A51 Comparison Chart
DESIGN AND DIMENSIONS Huawei P20 Pro Samsung Galaxy A51
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A515F/DSN
Form Factor Touch Touch
Height 155 mm 158.5 mm Samsung Galaxy A51 has greater height than Huawei P20 Pro.
Width 73.88 mm 73.6 mm Huawei P20 Pro has greater width than Samsung Galaxy A51.
Depth 7.65 mm 7.9 mm Huawei P20 Pro is narrower than Huawei P20 Pro.
Weight 174 g 172 g Samsung Galaxy A51 is lighter than Huawei P20 Pro.
Body Colour Midnight blue | Black | Twilight Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white
Body Material 3D glass -
Protection Dustproof, splashproof, waterproof -
Waterproof (Water-resistant) Yes - Huawei P20 Pro is waterproof.
IP rating IP67 -
SAR Value 1.22 W/kg (body), 0.73 W/kg (head) 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb)
Connector Type USB Type-C - 24 pin USB-C USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Huawei P20 Pro Samsung Galaxy A51
Display Type OLED display OLED display
Display Technology - Super AMOLED
Screen Size (Display Size) 6.1" 6.5" Samsung Galaxy A51 has larger screen size than Huawei P20 Pro.
Screen Resolution (Display Resolution) 2240 x 1080 pixels 2400 x 1080 pixels Samsung Galaxy A51 has better screen resolution than Huawei P20 Pro.
Display Format - Full HD+
Pixel Density 408 ppi 408 ppi Both phones have the same pixel density.
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Display Features FullView Display Edge-to-Edge screen, Infinity O display
PROCESSOR Huawei P20 Pro Samsung Galaxy A51
Processor Type (CPU) Hisilicon Kirin 970 - with i7 Samsung Exynos 9611
Clock Speed 2.36 GHz 2.3 GHz Huawei P20 Pro 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.
MEMORY Huawei P20 Pro Samsung Galaxy A51
RAM 6 GB 4 GB Huawei P20 Pro 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
CAMERA Huawei P20 Pro Samsung Galaxy A51
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 40 Megapixel 48 Megapixel Samsung Galaxy A51 has better camera resolution than Huawei P20 Pro.
Sensor Size 1/1.7" -
Lens Aperture F/1.8 F/2.0 Huawei P20 Pro has better lens aperture than Huawei P20 Pro.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes -
Digital Zoom - 8x
Camera Modes Night mode, Ultra Snapshot, Super slow motion, Bokeh Mode, manual super night mode, action snapshot, 3D Portrait Lighting Slow motion mode, Live Focus mode
Light Source Dual tone LED flash LED flash
Video Resolutions Super slow motion video 1920 x 1080 (1080p) at 960 fps Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), Leica Triple Camera, Master AI, 5x Hybrid Zoom, AI Image Stabilisation, AI camera assistant, Light Fusion technology, Intelligent zone setting, Smart Gallery, AI scene and object detection, Contrast Auto-Focus, 4D Predictive Focus AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur
SECOND CAMERA
Sensor Resolution (2nd Camera) 20 Megapixel 12 Megapixel Huawei P20 Pro has better second camera resolution than Samsung Galaxy A51.
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) F/1.6 F/2.2 Huawei P20 Pro has better second camera lens aperture than Huawei P20 Pro.
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 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 1
Sensor Resolution (Front) 24 Megapixel 32 Megapixel Samsung Galaxy A51 has better front camera resolution than Huawei P20 Pro.
Lens Aperture (Front) F/2.0 F/2.2 Huawei P20 Pro has better front lens aperture than Huawei P20 Pro.
Focus Adjustment - Focus free
Camera Modes (Front) Portrait mode -
BATTERY AND CHARGING Huawei P20 Pro Samsung Galaxy A51
Battery Capacity (Battery Size) 4000 mAh 4000 mAh Both phones have the same battery capacity.
Fast Charging Technology HUAWEI SuperCharge technology - Huawei P20 Pro has fast charging technology.
Standby Time 421 hours -
Talk Time 1320 minutes 1920 minutes Samsung Galaxy A51 has longer battery life when making calls than Huawei P20 Pro.
Run Time Details Talk: up to 1320 min
Standby: up to 421 hrs
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 polymer Lithium Ion
CELLULAR Huawei P20 Pro Samsung Galaxy A51
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 8.1 Oreo Android 10
User Interface HUAWEI Emotion UI 8.1 One UI
Intelligent Assistant - Bixby
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Huawei P20 Pro Samsung Galaxy A51
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
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 6, Band 8, Band 19 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 800, 900, 800 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, 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 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
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, 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 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
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac, ANT+
Bluetooth Bluetooth 4.2 Bluetooth 5.0 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 Huawei P20 Pro Samsung Galaxy A51
Supported Digital Audio Standards WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, apt-X, LDAC, MP4, apt-X HD, HWA WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MPEG-4, 3GP MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements Hi-Fi Sound support, Dolby Atmos sound technology, Hi-Res audio -
FEATURES Huawei P20 Pro Samsung Galaxy A51
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, digital compass, gyro sensor, hall sensor, gravity sensor, infrared (IR) sensor, laser sensor, colour temperature sensor Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor
Security Devices Fingerprint reader Fingerprint reader (under display)
Additional Phone Features MIMO technology, Knuckle, Split Screen, Neural Network Processing Unit, Huawei Share 2.0, ARCore Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines
OTHERS Huawei P20 Pro Samsung Galaxy A51
Included Accessories Protective cover, USB-C to 3.5 jack adapter, USB-C cable, USB-C stereo headset, HUAWEI SuperCharge charger Power adapter
Compliant Standards IP67, IEC 60529 -
Other projects: