So sánh samsung j8 và a7 2023

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NetworkTechnology GSM / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - A750F/DS, A750FN/DS
  HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - A750G
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41, 66 - J810Y/DS 1, 3, 5, 7, 8, 20, 38, 40, 41 - A750F/DS, A750FN/DS
  1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 40, 41, 66 - A750G
Speed HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
LaunchAnnounced 2018, May 2018, September 20
Status Available. Released 2018, July Available. Released 2018, October
BodyDimensions 159.2 x 75.7 x 8.2 mm (6.27 x 2.98 x 0.32 in) 159.8 x 76.8 x 7.5 mm (6.29 x 3.02 x 0.30 in)
Weight 177 g (6.24 oz) 168 g (5.93 oz)
Build Glass front, plastic back, plastic frame Glass front (Gorilla Glass 3), glass back, plastic frame
SIM Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
DisplayType Super AMOLED Super AMOLED
Size 6.0 inches, 91.4 cm2 (~75.8% screen-to-body ratio) 6.0 inches, 91.4 cm2 (~74.4% screen-to-body ratio)
Resolution 720 x 1480 pixels, 18.5:9 ratio (~274 ppi density) 1080 x 2220 pixels, 18.5:9 ratio (~411 ppi density)
Protection Corning Gorilla Glass 3
  Always-on display
PlatformOS Android 8.0 (Oreo), upgradable to Android 9.0 (Pie) Android 8.0 (Oreo), upgradable to Android 10, One UI 2.0
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Exynos 7885 (14 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPU Adreno 506 Mali-G71
MemoryCard slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM, 64GB 4GB RAM 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Main CameraModules 16 MP, f/1.7, AF
5 MP, f/1.9, (depth)
24 MP, f/1.7, 27mm (wide), 1/2.8", 0.9µm, PDAF
8 MP, f/2.4, 18mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, (depth)
Features LED flash, panorama, HDR LED flash, panorama, HDR
Video 1080p@30fps 1080p@30fps (gyro-EIS), 1080p@240fps, 720p@960fps
Selfie CameraModules 16 MP, f/1.9, 26mm (wide), 1/3.06", 1.0µm 24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm
Features LED flash HDR
Video 1080p@30fps 1080p@30fps
SoundLoudspeaker Yes Yes
3.5mm jack Yes Yes
CommsWLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth 4.2, A2DP, LE 5.0, A2DP, LE
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS
NFC No Yes (market dependent)
Infrared port No No
Radio FM radio, recording FM radio
USB microUSB 2.0, USB On-The-Go microUSB 2.0
FeaturesSensors Fingerprint (rear-mounted), accelerometer, proximity Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
  ANT+
Samsung Pay
BatteryType Li-Ion 3500 mAh, non-removable Li-Po 3300 mAh, non-removable
Stand-by
Talk time Up to 23 h (3G)
Music play Up to 112 h
Misc
Colors Black, Gold, Blue, Purple Black, blue, gold, pink
SAR EU 0.57 W/kg (head)     1.18 W/kg (body)     0.34 W/kg (head)     1.43 W/kg (body)    
Models SM-J810G, SM-J810F, J810Y, SM-J810Y, SM-J810GF, SM-J810M SM-A750F, SM-A750FN, SM-A750G, SM-A750GN, SM-A750C, SM-A750X, SM-A750N
Price About 310 EUR About 310 EUR
TestsPerformance AnTuTu: 123883 (v7)
GeekBench: 4446 (v4.4)
GFXBench: 5.7fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal), 4.324 (sunlight)
Loudspeaker Voice 69dB / Noise 70dB / Ring 79dB
Audio quality Noise -93.1dB / Crosstalk -92.5dB
Battery life 93h endurance rating