Samsung Galaxy A51 vs Google Pixel 4a 5G

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PHONES
Phone Names Samsung Galaxy A51 Google Pixel 4a 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 46, 48, 66, 71
5G bands-1, 2, 3, 5, 7, 8, 12, 28, 41, 66, 71, 77, 78 Sub6, mmWave (market dependant)
SpeedHSPA, LTEHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U-
Launch
Announced2019, December 12. Released 2019, December 162020, September 30
StatusDiscontinuedAvailable. Released 2020, November 05
Body
BuildGlass front (Gorilla Glass 3), plastic back, plastic frameGlass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)153.9 x 74 x 8.2 mm (Sub-6) or 8.5 mm (Sub-6 and mmWave)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + eSIM
Weight172 g (6.07 oz)168 g (5G Sub-6); 171 g ( 5G Sub-6 and mmWave) (5.93 oz)
Display
ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~413 ppi density)
Size6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)6.2 inches, 95.7 cm2 (~84.1% screen-to-body ratio)
TypeSuper AMOLEDOLED, HDR
 -Always-on display
Platform
CPUOcta-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetExynos 9611 (10 nm)Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUMali-G72 MP3Adreno 620
OSAndroid 10, upgradable to Android 13, One UI 5Android 11, upgradable to Android 14
Memory
Card slotmicroSDXC (dedicated slot)No
Internal64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM128GB 6GB RAM
 UFS 2.0UFS 2.1
Main Camera
Dual-12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 16 MP, f/2.2, 107˚ (ultrawide), 1.0µm
FeaturesLED flash, panorama, HDRLED flash, Pixel Shift, Auto-HDR, panorama
Quad48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens-
Video4K@30fps, 1080p@30/120fps; gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm
Video4K@30fps, 1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, QZSS, BDS
RadioFM radioNo
USBUSB Type-C 2.0, OTGUSB Type-C 3.1
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
 Virtual proximity sensing ANT+-
Battery
Charging15W wired18W wired, PD2.0
TypeLi-Po 4000 mAh, non-removableLi-Po 3885 mAh
Misc
ColorsPrism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush PinkJust Black, Clearly White
ModelsSM-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-S515DLGD1YQ, G025I, G025E, G025H, G6QU3
PriceAbout 100 EURAbout 140 EUR
SAR0.80 W/kg (head)     0.67 W/kg (body)-
SAR EU0.37 W/kg (head)     1.59 W/kg (body)-
Pricing
128GB 4GB RAM$ 299.99-
128GB 6GB RAM$ 674.99-
64GB 4GB RAM$ 211.50-
RENEWED£ 179.00-
Tests
Audio quality Noise -93.1dB / Crosstalk -87.3dB-
Battery life Endurance rating 86h -
Camera Photo / Video-
Display Contrast ratio: Infinite (nominal)-
Loudspeaker -28.6 LUFS (Average) -
Performance AnTuTu: 113051 (v7), 175363 (v8) GeekBench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen)-
OUR TESTS
Audio qualityNoise -93.1dB / Crosstalk -87.3dB-
Battery (old)Endurance rating 86h-
CameraPhoto / Video-
Display636 nits max brightness (measured)-
Loudspeaker-28.6 LUFS (Average)-
PerformanceAnTuTu: 113051 (v7), 175363 (v8) GeekBench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen)-