Samsung Galaxy A51 vs. OPPO A77 5G

Phone Comparison, Reviews and Tests

Side by side comparison and review of Samsung Galaxy A51 and OPPO A77 5G. 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.

Phone Specifications Comparison

Samsung Galaxy A51 vs. OPPO A77 5G Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A51 OPPO A77 5G
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A515F/DSN CPH2339
Form Factor Touch Touch
Height 158.5 mm 163.8 mm OPPO A77 5G has greater height than Samsung Galaxy A51.
Width 73.6 mm 75.1 mm OPPO A77 5G has greater width than Samsung Galaxy A51.
Depth 7.9 mm 7.99 mm Samsung Galaxy A51 is narrower than Samsung Galaxy A51.
Weight 172 g 190 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 Midnight black | Ocean blue
Protection - Waterproof, splash-resistant
Waterproof (Water-resistant) - Yes OPPO A77 5G is waterproof.
IP rating - IPX4
SAR Value 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) 1.256 W/kg (body), 0.986 W/kg (head), 2.683 W/kg (limb)
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
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details - Micro SIM + nano SIM/microSD
DISPLAY Samsung Galaxy A51 OPPO A77 5G
Display Type OLED display LCD display
Display Technology Super AMOLED -
Screen Size (Display Size) 6.5" 6.56" OPPO A77 5G has larger screen size than Samsung Galaxy A51.
Screen Resolution (Display Resolution) 2400 x 1080 pixels 1612 x 720 pixels Samsung Galaxy A51 has better screen resolution than OPPO A77 5G.
Display Format Full HD+ HD+
Pixel Density 408 ppi 269 ppi Samsung Galaxy A51 has better pixel density than OPPO A77 5G.
Aspect Ratio - 20:9
Max Brightness - 600 cd/m²
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Display Refresh Rate - 90 Hz
Touch Sampling Rate - 90 Hz
Display Features Edge-to-Edge screen, Infinity O display 100% DCI-P3, 96% NTSC, 100% sRGB, High brightness mode, Vivid mode
Display Protection (Screen Protector) - Panda Glass MN228
PROCESSOR Samsung Galaxy A51 OPPO A77 5G
Processor Type (CPU) Samsung Exynos 9611 MediaTek Dimensity 810
Clock Speed 2.3 GHz 2.4 GHz OPPO A77 5G 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 - Samsung Galaxy A51 has 64-bit architecture.
Graphics System (GPU) - Mali-G57 MC2
MEMORY Samsung Galaxy A51 OPPO A77 5G
RAM 4 GB LPDDR4X SDRAM - 4 GB + up to 3 GB virtual extension Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 128 GB 64 GB Samsung Galaxy A51 has more internal memory than OPPO A77 5G.
User Memory 107 GB -
Memory Interface - UFS 2.2
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 512 GB microSDHC, microSD, microSDXC - up to 1 TB
CAMERA Samsung Galaxy A51 OPPO A77 5G
MAIN CAMERA
Number of Main Cameras 4 2
Sensor Resolution 48 Megapixel 48 Megapixel Both phones have the same camera resolution.
Sensor Size - 1/1.2"
Sensor Name - Samsung S5KGM1ST
Lens Aperture F/2.0 F/1.7 OPPO A77 5G has better lens aperture than Samsung Galaxy A51.
Lens Construction - 6-element
Field of View (FoV) - 80 degree(s)
Pixel Size - 0.8 μm
Focus Adjustment Automatic Automatic
Focal Length Equivalent to 35mm Camera - 25mm
Digital Zoom 8x -
Special Effects - Stickers
Camera Modes Slow motion mode, Live Focus mode Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night, Macro mode, Extra HD, Text scanner
Light Source LED flash LED flash
Video Resolutions Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur Google Lens
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 2 Megapixel Samsung Galaxy A51 has better second camera resolution than OPPO A77 5G.
Sensor Size (2nd Camera) - 1/5"
Lens Type (2nd Camera) Ultra wide-angle lens -
Lens Aperture (2nd Camera) F/2.2 F/2.4 Samsung Galaxy A51 has better second camera lens aperture than Samsung Galaxy A51.
Lens Element Qty (2nd Camera) - 3-element
Field of View (2nd Camera) 123 degree(s) 89 degree(s) Samsung Galaxy A51 has larger second camera lens field of view than OPPO A77 5G.
Pixel Size (2nd Camera) - 1.75 μm
Focal Length Equivalent to 35mm Camera - 20mm
Camera Functions (2nd Camera) - Depth camera
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) 32 Megapixel 8 Megapixel Samsung Galaxy A51 has better front camera resolution than OPPO A77 5G.
Sensor Size (Front) - 1/4"
Sensor Name (Front) - Sony IMX355 sensor
Lens Aperture (Front) F/2.2 F/2.0 OPPO A77 5G has better front lens aperture than Samsung Galaxy A51.
Lens Element Qty (Front) - 5-element
Field of View (Front) - 79 degree(s)
Pixel Size (Front) - 1.12 μm
Focus Adjustment Focus free Focus free
Focal Length Equivalent to 35mm Camera - 26mm
Special Effects (Front) - Stickers
Camera Modes (Front) - Panorama, Time-lapse mode, night mode, Portrait
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
BATTERY AND CHARGING Samsung Galaxy A51 OPPO A77 5G
Battery Capacity (Battery Size) 4000 mAh 5000 mAh OPPO A77 5G has larger battery capacity than Samsung Galaxy A51.
Fast Charging Technology - SuperVOOC Flash Charge technology OPPO A77 5G has fast charging technology.
Recharge Time (Charging Time) - 69 min
Standby Time - 344 hours
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
Standby (Ultra Power Saving Mode): up to 344 hrs
Battery Technology Lithium Ion -
CELLULAR Samsung Galaxy A51 OPPO A77 5G
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G OPPO A77 5G has more advanced generation mobile network.
Operating System Android 10 ColorOS 12.1 (based on Android 12)
User Interface One UI -
Intelligent Assistant Bixby -
Navigation GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Samsung Galaxy A51 OPPO A77 5G
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE 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 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, 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 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 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3
5G NR Band - N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40
5G NR Frequency - FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac, ANT+ IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 LE Bluetooth 5.3 BLE
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 -
MEDIA Samsung Galaxy A51 OPPO A77 5G
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, IMY, ALAC, OPUS, MID, SBC, apt-X HD
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 MKV, FLV, AVI, MOV, WMV, ASF, 3GP, H.264, M4V, TS, M2TS, WebM, H.265, MP4
FEATURES Samsung Galaxy A51 OPPO A77 5G
Phone Functions 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, pedometer, digital compass, geomagnetic sensor, gravity sensor
Security Devices Fingerprint reader (under display) Face recognition, fingerprint reader (side)
Security Technology - Face Unlock
Additional Phone Features Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines Fast Charging, Super power saving mode, OTG Reverse Charge, 3 years of Security Updates, 2 years of OS upgrades, ultra linear stereo speakers, Ultra volume mode
OTHERS Samsung Galaxy A51 OPPO A77 5G
Included Accessories Power adapter Protective cover, USB cable, power adapter, SIM card removal tool
Compliant Standards - IPX4
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