Samsung Galaxy S9+ vs. Samsung Galaxy A51

Phone Comparison, Reviews and Tests

Side by side comparison and review of Samsung Galaxy S9+ and Samsung Galaxy A51. 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 S9+ vs. Samsung Galaxy A51 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy S9+ Samsung Galaxy A51
Product Type Smartphone Smartphone
Manufacturer Model Number SM-G965F SM-A515F/DSN
Form Factor Touch Touch
Height 158.1 mm 158.5 mm Samsung Galaxy A51 has greater height than Samsung Galaxy S9+.
Width 73.8 mm 73.6 mm Samsung Galaxy S9+ has greater width than Samsung Galaxy A51.
Depth 8.5 mm 7.9 mm Samsung Galaxy A51 is narrower than Samsung Galaxy S9+.
Weight 189 g 172 g Samsung Galaxy A51 is lighter than Samsung Galaxy S9+.
Body Colour Lilac purple Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white
Body Material Metal frame -
Protection Dustproof, splashproof, waterproof -
Waterproof (Water-resistant) Yes - Samsung Galaxy S9+ is waterproof.
IP rating IP68 -
SAR Value 1.35 W/kg (body), 0.294 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
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 Single-SIM Dual-SIM
DISPLAY Samsung Galaxy S9+ Samsung Galaxy A51
Display Type OLED display OLED display
Display Technology Quad HD+ Super AMOLED Super AMOLED
Screen Size (Display Size) 6.2" 6.5" Samsung Galaxy A51 has larger screen size than Samsung Galaxy S9+.
Screen Resolution (Display Resolution) 2960 x 1440 pixels 2400 x 1080 pixels Samsung Galaxy S9+ has better screen resolution than Samsung Galaxy A51.
Display Format QHD+ Full HD+
Pixel Density 529 ppi 408 ppi Samsung Galaxy S9+ has better pixel density than Samsung Galaxy A51.
Aspect Ratio 18.5:9 -
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
HDR Yes - Samsung Galaxy S9+ has HDR.
Display Features Always-on display, Infinity Display, Curved Dual-Edge Screen Edge-to-Edge screen, Infinity O display
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) -
PROCESSOR Samsung Galaxy S9+ Samsung Galaxy A51
Processor Type (CPU) Samsung Exynos Samsung Exynos 9611
Processor Number 9810 -
Clock Speed 2.7 GHz 2.3 GHz Samsung Galaxy S9+ 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 Samsung Galaxy S9+ Samsung Galaxy A51
RAM LPDDR4 SDRAM - 6 GB 4 GB Samsung Galaxy S9+ has more RAM than Samsung Galaxy A51.
Internal Memory Size (Storage Capacity) 64 GB 128 GB Samsung Galaxy A51 has more internal memory than Samsung Galaxy S9+.
User Memory 50.3 GB 107 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 512 GB microSDHC, microSDXC - up to 512 GB
CAMERA Samsung Galaxy S9+ Samsung Galaxy A51
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 48 Megapixel Samsung Galaxy A51 has better camera resolution than Samsung Galaxy S9+.
Sensor Size 1/2.55" -
Lens Type Wide-angle lens -
Lens Aperture F/1.5 and f/2.4 F/2.0 Samsung Galaxy S9+ has better lens aperture than Samsung Galaxy S9+.
Optical Image Stabiliser (OIS) Dual OIS (Optical Image Stabilisation) - Samsung Galaxy S9+ has optical stabilisation.
Focus Adjustment Automatic, manual Automatic
Optical Zoom 2x -
Digital Zoom 10x 8x Samsung Galaxy S9+ has better digital zoom than Samsung Galaxy A51.
Special Effects Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers -
Camera Modes Panorama, Slow motion mode, Pro mode, Timer mode, HYPERLAPSE, Auto mode, low-light shots, Food mode, Super Slow-mo, AR Emoji Slow motion mode, Live Focus mode
Face Recognition (Face ID) Face detection - Samsung Galaxy S9+ has face detection.
White Balance Custom, automatic -
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, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 2560 x 1440 (QHD) at 30 fps Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps
Camera Features (Functions) Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Dual Pixel technology, Motion photo, Exposure, Shutter speed, geotagging, Continuous Auto Focus (CAF), RAW image capture, VDIS (Video Digital Image Stabilisation), Dual Capture, High CRI LED flash, Tracking AF, 9MP still photos recording 4K video, Video location tags, Stamps, location tags, Continuous autofocus video, Hyperlapse video support 1080p, Live focus with bokeh filters, Super Speed Dual Pixel AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 12 Megapixel Both phones have the same second camera resolution.
Sensor Size (2nd Camera) 1/3.4" -
Lens Type (2nd Camera) Telephoto lens Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.4 F/2.2 Samsung Galaxy A51 has better second camera lens aperture than Samsung Galaxy S9+.
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) 8 Megapixel 32 Megapixel Samsung Galaxy A51 has better front camera resolution than Samsung Galaxy S9+.
Sensor Size (Front) 1/3.6" -
Lens Aperture (Front) F/1.7 F/2.2 Samsung Galaxy S9+ has better front lens aperture than Samsung Galaxy S9+.
Focus Adjustment Automatic Focus free
Special Effects (Front) HDR, Grid Line -
Camera Modes (Front) Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus -
Camera Features (Front) Quick launch, Motion photo, Stamps, Smart Auto Focus, location tags, VDIS (Video Digital Image Stabilization) -
BATTERY AND CHARGING Samsung Galaxy S9+ Samsung Galaxy A51
Battery Capacity (Battery Size) 3500 mAh 4000 mAh Samsung Galaxy A51 has larger battery capacity than Samsung Galaxy S9+.
Wireless Charging Yes - Samsung Galaxy S9+ can be charged wirelessly.
Wireless Charging Standards WPC, PMA -
Talk Time 1500 minutes 1920 minutes Samsung Galaxy A51 has longer battery life when making calls than Samsung Galaxy S9+.
Run Time Details Active online usage (LTE): up to 15 hrs
Active online usage (3G): up to 13 hrs
Talk (3G): up to 1500 min
Playback (audio): up to 54 hrs
Playback (Always On Display Off): up to 94 hrs
Playback (video): up to 18 hrs
Active online usage (Wi-Fi): up to 15 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 Ion
CELLULAR Samsung Galaxy S9+ Samsung Galaxy A51
Technology TD-SCDMA / WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 8.0 Oreo Android 10
User Interface - One UI
Intelligent Assistant Bixby Bixby
Payment Technology Samsung Pay -
Navigation GPS, GLONASS, BeiDou, Galileo GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Samsung Galaxy S9+ Samsung Galaxy A51
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X, 2100 CDMA2000 1X (AWS) 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 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 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 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, 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 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, ANT+/ANT IEEE 802.11a/b/g/n/ac, ANT+
Bluetooth Bluetooth 5.0 LE Bluetooth 5.0 LE
Bluetooth Profiles HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, HOGP 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 S9+ Samsung Galaxy A51
Supported Digital Audio Standards WAV, WMA, AAC, PCM, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, APE (Monkey's Audio), M4A, apt-X, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, OPUS, DFF, MID, AMR-WB, AMR-NB, Vorbis, DSD64, DSD128 WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, VC-1, FLV, AVC, AVI, MPEG-4, WMV, ASF, 3GP, H.264, H.263, M4V, WebM, HEVC, MP43, 3G2, WMV8, VP8, VP9, H.265, WMV7 MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound -
FEATURES Samsung Galaxy S9+ 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, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor
Security Devices Face recognition, fingerprint reader, eye scan Fingerprint reader (under display)
Additional Phone Features Multitasking, Face Unlock, Wi-Fi Miracast, Multi Window, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Samsung DeX support, Bixby Vision, Intelligent Scan Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines
OTHERS Samsung Galaxy S9+ Samsung Galaxy A51
Included Accessories Power adapter, SIM card removal tool, USB Connector (USB-C), micro-USB connector, USB-C cable, headset (tuned by AKG) Power adapter
Compliant Standards IP68 -
Max Depth of Water Resistance 1.5 m -
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