Product
Samsung Galaxy A8s
Samsung Galaxy A8s
Samsung Galaxy M55s
Samsung Galaxy M55s
Battery
Charging 18W wired 45W wired
Type Li-Ion 3400 mAh, non-removable 5000 mAh
Body
Build Glass front (Gorilla Glass 3), glass back (Gorilla Glass 5), aluminum frame -
Dimensions 158.4 x 74.9 x 7.4 mm (6.24 x 2.95 x 0.29 in) 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 173 g (6.10 oz) 180 g (6.35 oz)
Comms
Bluetooth 5.0, A2DP, EDR, LE 5.2, A2DP, LE
NFC Yes Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No No
USB USB Type-C 2.0 USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 -
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.7% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type PLS LCD Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
  ANT+ Samsung Pay -
Launch
Announced 2018, December. Released 2018, December 2024, September 24
Status Discontinued Available. Released 2024, September 26
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Triple 24 MP, f/1.7, 27mm (wide), 1/2.8", 0.9µm, PDAF 10 MP f/2.4, 52mm (telephoto), 1/3.9", 1.0µm, AF, 2x optical zoom 5 MP, f/2.2, (depth) 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30/240fps 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 128GB 8GB RAM, 256GB 8GB RAM
Misc
Colors Black, Gradient Black, Blue, Pink-Blue, Yellow-Pink Thunder Black, Coral Green
Models SM-G8870, SM-G887F, SM-G887N, SM-A8s SM-M558B, SM-M558B/DS
SAR - 0.93 W/kg (head)    
SAR EU 0.24 W/kg (head)     1.17 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 4, 5, 7, 8, 12, 17, 34, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66
5G bands - 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE / 5G
  CDMA 800 & TD-SCDMA -
Platform
Chipset Qualcomm SDM710 Snapdragon 710 (10 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (2x2.2 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 616 Adreno 644
OS Android 9.0 (Pie), One UI Android 14, up to 4 major Android upgrades, One UI 6.1
Selfie camera
Features HDR -
Single 24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm 50 MP, f/2.4, (wide)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack No No
Loudspeaker Yes Yes, with stereo speakers
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