• 6.5" (2400x1080) Super AMOLED
  • 6GB/8GB
    Samsung Exynos 980 SoC
    128GB Storage
  • 48-MP, f/2 4 Rear Cameras
    CAMERA HW score: 103
  • 4500 mAh
  • 5.8" (2960x1440) Super AMOLED
  • 4GB
    Snapdragon 845 SoC
    128GB/256GB/64GB Storage
  • 12-MP, f/1.5, OIS 1 Rear Camera
    CAMERA HW score: 105
  • 3000 mAh W-Charge

Specifications Highlights
Product NameGalaxy A51 5GGalaxy S9
ProductGalaxy A51 5G (Launched 2020-04-08)Galaxy S9 (Launched 2018-02-25)
Display6.5" 2400x1080 Super AMOLED 5.8" 2960x1440 Super AMOLED , HDR10
Rear Camera(s)
  • 25mm 48-MP f/2 (Primary)
  • 13mm 12-MP f/2.2
  • 5-MP f/2.2 +Bokeh Sensor
  • 5-MP f/2.4
  • 27mm 12-MP f/1.5 (Primary) +OIS
Selfie Camera(s)
  • 32-MP f/2.2
  • 26mm 8-MP f/1.7
Computing
  • Samsung Exynos 980 SoC
  • 6GB/8GB RAM
  • 128GB Storage
  • MicroSDXC
  • Snapdragon 845 SoC
  • 4GB RAM
  • 128GB/256GB/64GB Storage
  • MicroSD (400GB max.)
Battery4500 mAh3000 mAh, Wireless Charging
DesignIP Rating, 187g (6.6oz), 73.6x158.9x8.7 mm (2.90 x 6.26 x 0.34 inches)IP68, 163g (5.7oz), 147.7x68.7x 8.5 mm (5.81 x 2.70 x 0.33 inches)
Price (Market)$499$445
Price at Launch$549$720
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Display
Product NameGalaxy A51 5GGalaxy S9
TypeSuper AMOLEDSuper AMOLED
Diagonal (inches)6.5"5.8"
Display/Body Ratio87.2%84.1%
Resolution2400x10802960x1440
Sharpness (PPI)405 PPI568 PPI
Display Glass TypeGorilla Glass 5
Features
  • Multitouch
  • Glossy
  • Multitouch
  • Glossy
  • Tweakable Resolution
  • HDR10
  • Always-On
Color Depth24 bit (16,777,216 Colors)24 bit (16,777,216 Colors)
Primary Camera
Product NameGalaxy A51 5GGalaxy S9
Megapixel48-MP12-MP
Aperturef/2f/1.5
Focal Length (35mm) 25mm27mm
Sensor SizeMediumSmall
Autofocus Features
  • Phase Detection
  • Phase Detection
  • Contrast
  • Dual-Pixel Phase Detection
Hardware Features
  • Quad Bayer
  • Autofocus
  • OIS
  • Flash
  • Dual LED Flash
  • HDR Photo
Video Resolutions
  • 1080p/60fps
  • 2160p/30fps
  • 720p/120fps
Ultrawide Camera
Product NameGalaxy A51 5G
Megapixel12-MP
Aperturef/2.2
Focal Length (35mm) 13mm
Sensor SizeSmall
Macro Camera
Product NameGalaxy A51 5G
Megapixel5-MP
Aperturef/2.4
Sensor SizeVery small
Hardware Features
  • Macro Lens
Battery
Product NameGalaxy A51 5GGalaxy S9
Battery TypeLi-IonLi-Ion
Battery Capacity (mAh)4500 mAh3000 mAh
Battery Features
  • Fast Charge
  • Non-Removable
  • Fast Charge
  • Wireless Charging Integrated
Computing
Product NameGalaxy A51 5GGalaxy S9
Processor BrandQualcomm
Processor NameSamsung Exynos 980Snapdragon 845
Processor # Cores88
Main Processor Frequency (GHz)2.2 GHz2.8 GHz
RAM Options6GB/8GB4GB
Internal Storage Options128GB128GB/256GB/64GB
Memory Card TypeMicroSDXCMicroSD
Mem. Card Max. Size400GB
Operating System + VersionAndroid 10Android 8.0
Communications
Product NameGalaxy A51 5GGalaxy S9
LTE Category (Download)LTE CAT18 1200/211 Mbps
LTE Bands1, 3, 5, 7, 8
Modem Features
  • UMTS
  • EDGE
  • GPRS
  • HSPA+
  • LTE
  • 5G NSA
  • 5G SA
  • GPRS
  • EDGE
  • LTE
WiFi Speed
  • a
  • b
  • g
  • n
  • ac
  • a
  • ac
  • b
  • g
  • n
WiFi Features
  • Dual-band
  • Hotspot
  • WiFi Direct
  • MU-MIMO
  • MIMO
  • Hotspot
  • Dual-band
  • WiFi Direct
Bluetooth VersionBluetooth 5.0Bluetooth 5.0
Bluetooth Features
  • A2DP
  • AVRCP
  • DIP
  • HFP
  • HID
  • HSP
  • MAP
  • OPP
  • PAN
  • PBAP/PAB
  • A2DP
  • BT LE
  • BT EDR
NFC Features
  • NFC Supported
Connector TypeUSB Type CUSB Type C
Connector Features
  • USB 2.0
  • USB OTG
  • USB 3.1
  • USB OTG
  • USB OTG
SAR US Head0.8 W/Kg
SAR US Body0.67 W/Kg
SAR EU Head0.369 W/Kg
SAR EU Body1.59 W/Kg
Sim Card 0
Product NameGalaxy A51 5GGalaxy S9
NameSIM0SIM0
SIM TypeNano SIMNano SIM
Sim Card 1
Product NameGalaxy A51 5GGalaxy S9
NameSIM1
SIM TypeNano SIM
Multimedia
Product NameGalaxy A51 5GGalaxy S9
Multimedia Features
  • Daydream VR
Audio Alerts
  • MP3
  • VIBRATION
  • WAV
Speaker channelsStereo
Audio Features
  • Loudspeaker
  • FM Radio
  • 3.5mm Port
  • Loudspeaker
  • 3.5mm Port
  • Phone Noise Cancellation
Audio Formats
  • AAC
  • 3GA
  • AMR
  • RA
  • AWB
  • FLAC
  • M4A
  • MID
  • MIDI
  • MP3
  • OGA
  • OGG
  • WMA
  • WAV
  • 3GA
  • AAC
  • AMR
  • AWB
  • FLAC
  • M4A
  • MID
  • MIDI
  • MP3
  • MXMF
  • OGA
  • OGG
  • OTA
  • RTTTL
  • WAV
  • WMA
  • XMF
Video Formats
  • H.263
  • H.264
  • MPEG-4
  • H.265
  • MP4
  • VC-1
  • VP8
  • VP9
  • WMV7
  • WMV8
  • XVID
  • 3G2
  • 3GP
  • ASF
  • AVI
  • FLV
  • M4V
  • MKV
  • MP4
  • WEBM
  • WMV
Sensors
  • Proximity
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
  • Galileo
  • Accelerometer
  • Barometer
  • Compass
  • Gesture
  • GPS
  • A-GPS
  • GLONASS
  • Gyroscope
  • Heart Rate
  • Light
  • Proximity

Samsung Galaxy A51 5G vs. Samsung Galaxy S9 Specs & Speed Benchmarks

Basemark OS II 2.0

Higher is better
Samsung Galaxy S9355036003650370037503800385039003950400040504100415042004250

Geekbench 4 Single

Higher is better
Samsung Galaxy S9Apple iPhone XR150017502000225025002750300032503500375040004250450047505000

Geekbench 4 Multi

Higher is better
Samsung Galaxy S9Apple iPhone XR700072507500775080008250850087509000925095009750100001025010500107501100011250

3DMark Slingshot 3.1

Higher is better
Apple iPhone SESamsung Galaxy S92500275030003250350037504000425045004750

3DMark Unlimited Icestorm

Higher is better
Apple iPhone SESamsung Galaxy S9225002500027500300003250035000375004000042500450004750050000525005500057500

GFXBench Manhattan (Offscr.)

Higher is better
Apple iPhone SESamsung Galaxy S9Apple iPhone XR3035404550556065707580859095100105110115120125

GFXBench Manhattan 3.1 (Offscr.)

Higher is better
Apple iPhone SEApple iPhone XRSamsung Galaxy S922.52527.53032.53537.54042.54547.55052.55557.560

GFXBench T-Rex (Offscr.)

Higher is better
Apple iPhone SESamsung Galaxy S9Apple iPhone XR5075100125150175200225

Battery Capacity (mAh)

Higher is better
Apple iPhone SELava A51Apple iPhone XRSamsung Galaxy S9Apple iPhone 11Google Pixel 4aGionee S10Samsung Galaxy S20Samsung Galaxy A51 5GSamsung Galaxy A71 5GSamsung Galaxy S20 FE 5G (SD)12501500175020002250250027503000325035003750400042504500

Battery Charge Speed (mAh/mn)

Higher is better
Apple iPhone XRSamsung Galaxy S917.52022.52527.53032.53537.5