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Specifications
 

Samsung Galaxy A40

Samsung Galaxy A51

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Samsung Galaxy A40
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Samsung Galaxy A40

Samsung Galaxy A51

Network
Technology GSM / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
  HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 3, 5, 7, 8, 20, 38, 40, 41 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 (2CA) Cat12 600/150 Mbps HSPA, LTE
Launch
Announced 2019, March 19 2019, December 12
Status Available. Released 2019, April Available. Released 2019, December 16
Body
Dimensions 144.4 x 69.2 x 7.9 mm (5.69 x 2.72 x 0.31 in) 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
3D size compare
Weight 140 g (4.94 oz) 172 g (6.07 oz)
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM Nano-SIM
Nano-SIM + Nano-SIM
Nano-SIM
Nano-SIM + Nano-SIM
Display
Type Super AMOLED Super AMOLED
Size 5.9 inches, 85.5 cm2 (~85.5% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~437 ppi density) 1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Protection Corning Gorilla Glass 3 Corning Gorilla Glass 3
Platform
OS Android 9.0 (Pie), upgradable to Android 11 Android 10, upgradable to Android 13, One UI 5
Chipset Exynos 7904 (14 nm) Exynos 9611 (10 nm)
CPU Octa-core (2x1.77 GHz Cortex-A73 & 6x1.59 GHz Cortex-A53) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G71 MP2 Mali-G72 MP3
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 eMMC 5.1 UFS 2.0
Main Camera
Modules 16 MP, f/1.7, 26mm (wide), PDAF
5 MP, f/2.2, 13mm (ultrawide)
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, panorama, HDR LED flash, panorama, HDR
Video 1080p@30fps 4K@30fps, 1080p@30/120fps; gyro-EIS
Selfie Camera
Modules 25 MP, f/2.0, 25mm (wide), 1/2.8", 0.9µm 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 1080p@30fps 4K@30fps, 1080p@30fps
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Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
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 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, BDS
NFC Yes Yes
Infrared port No No
Radio FM radio FM radio
USB USB Type-C 2.0 USB Type-C 2.0, OTG
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, compass
 ANT+ Virtual proximity sensing
ANT+
Battery
Type Li-Po 3100 mAh, non-removable Li-Po 4000 mAh, non-removable
Charging 15W wired 15W wired
Misc
Colors Black, White, Blue, Coral Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink
SAR 0.80 W/kg (head)     0.67 W/kg (body)    
SAR EU 0.49 W/kg (head)     1.34 W/kg (body)     0.37 W/kg (head)     1.59 W/kg (body)    
Models SM-A405F, SM-A405FN, SM-A405FM, SM-A405S 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 260 EUR $ 124.00 / C$ 179.99 / £ 77.74 / € 133.92
Tests
Performance AnTuTu: 106388 (v7)
GeekBench: 4112 (v4.4)
GFXBench: 4.6fps (ES 3.1 onscreen)
AnTuTu: 113051 (v7), 175363 (v8)
GeekBench: 5401 (v4.4), 1294 (v5.1)
GFXBench: 5.6fps (ES 3.1 onscreen)
Display 548 nits max brightness (measured) 636 nits max brightness (measured)
Camera Compare PHOTO / Compare VIDEO
Loudspeaker Voice 66dB / Noise 68dB / Ring 73dB -28.6 LUFS (Average)
Audio quality Noise -91.0dB / Crosstalk -85.9dB Noise -93.1dB / Crosstalk -87.3dB
Battery (old) Endurance rating 73h Endurance rating 86h

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