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Specifications
 

Samsung Galaxy S8+

Samsung Galaxy A51

Full Differences
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Samsung Galaxy S8+
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Samsung Galaxy S8+

Samsung Galaxy A51

Network
Technology GSM / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
  HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 2, 3, 4, 5, 7, 8, 17, 20, 28 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
  2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U
Speed HSPA 42.2/5.76 Mbps, LTE (5CA) Cat16 1024/150 Mbps HSPA, LTE
Launch
Announced 2017, March 29. Released 2017, April 2019, December 12
Status Discontinued Available. Released 2019, December 16
Body
Dimensions 159.5 x 73.4 x 8.1 mm (6.28 x 2.89 x 0.32 in) 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
3D size compare
Weight 173 g (6.10 oz) 172 g (6.07 oz)
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM Nano-SIM
Nano-SIM + Nano-SIM
Nano-SIM
Nano-SIM + Nano-SIM
 IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Display
Type Super AMOLED Super AMOLED
Size 6.2 inches, 98.3 cm2 (~84.0% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
Resolution 1440 x 2960 pixels, 18.5:9 ratio (~529 ppi density) 1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 3
Platform
OS Android 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI Android 10, upgradable to Android 13, One UI 5
Chipset Exynos 8895 (10 nm) - EMEA
Qualcomm MSM8998 Snapdragon 835 (10 nm) - USA & China
Exynos 9611 (10 nm)
CPU Octa-core (4x2.3 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53) - EMEA
Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) - USA & China
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G71 MP20 - EMEA
Adreno 540 - USA & China
Mali-G72 MP3
Memory
Card slot microSDXC (uses shared SIM slot) - dual SIM model only microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 6GB RAM 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 UFS 2.0 or UFS 2.1 UFS 2.0
Main Camera
Modules 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
12 MP, f/2.2, 123˚ (ultrawide)
5 MP, f/2.4, (macro)
5 MP, f/2.2, (depth)
Features LED flash, auto-HDR, panorama LED flash, panorama, HDR
Video 4K@30fps, 1080p@30/60fps, 720p@240fps, HDR, stereo sound rec., gyro-EIS, OIS 4K@30fps, 1080p@30/120fps; gyro-EIS
Selfie Camera
Modules 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22µm, AF
2 MP (dedicated iris scanner camera)
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features HDR HDR
Video 1440p@30fps 4K@30fps, 1080p@30fps
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Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
 32-bit/384kHz audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE, aptX 5.0, A2DP, LE
Positioning GPS, GLONASS, BDS, GALILEO GPS, GLONASS, GALILEO, BDS
NFC Yes Yes
Infrared port No No
Radio No FM radio
USB USB Type-C 3.1 USB Type-C 2.0, OTG
Features
Sensors Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2 Fingerprint (under display, optical), accelerometer, gyro, compass
 Samsung DeX (desktop experience support)
ANT+
Bixby natural language commands and dictation
Samsung Pay (Visa, MasterCard certified)
Virtual proximity sensing
ANT+
Battery
Type Li-Ion 3500 mAh, non-removable (13.48 Wh) Li-Po 4000 mAh, non-removable
Charging 15W wired, QC2
Wireless (Qi) (market dependent)
15W wired
Misc
Colors Midnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold, Rose Pink Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink
SAR 0.67 W/kg (head)     0.97 W/kg (body)     0.80 W/kg (head)     0.67 W/kg (body)    
SAR EU 0.27 W/kg (head)     1.00 W/kg (body)     0.37 W/kg (head)     1.59 W/kg (body)    
Models SM-G955F, SM-G955FD, SM-G955W, SM-G955A, SM-G955P, SM-G955T, SM-G955V, SM-G955R4, SM-G955U, SM-G955S, SM-G955K, SM-G955L, SM-G955, SM-G955U1, SM-G955N, SM-G9550, SC-03J, G955F SM-A515F, SM-A515F/DSN, SM-A515F/DS, SM-A515F/DST, SM-A515F/DSM, SM-A515F/N, SM-A515U, SM-A515U1, SM-A515W, SM-A515X, SM-S515DL
Price About 430 EUR $ 124.00 / C$ 179.99 / £ 77.75 / € 134.06
Tests
Performance GeekBench: 6754 (v4.4)
GFXBench: 13fps (ES 3.1 onscreen)
AnTuTu: 113051 (v7), 175363 (v8)
GeekBench: 5401 (v4.4), 1294 (v5.1)
GFXBench: 5.6fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal), 4.658(sunlight) 636 nits max brightness (measured)
Camera Compare PHOTO / Compare VIDEO
Loudspeaker Voice 68dB / Noise 69dB / Ring 71dB -28.6 LUFS (Average)
Audio quality Noise -92.2dB / Crosstalk -93.3dB Noise -93.1dB / Crosstalk -87.3dB
Battery (old) Endurance rating 88h Endurance rating 86h

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