Product
Vivo Y55
Vivo Y55
Samsung Galaxy A8+ (2018)
Samsung Galaxy A8+ (2018)
Battery
Charging 44W wired, 50% in 27 min 18W wired
Music play - Up to 73 h
Talk time - Up to 23 h (3G)
Type 5000 mAh Li-Ion 3500 mAh, non-removable
Body
Build Glass front, plastic frame, plastic back Glass front (Gorilla Glass 4), glass back (Gorilla Glass 5), aluminum frame
Dimensions 160.8 x 73.8 x 8.4 mm (6.33 x 2.91 x 0.33 in) 159.9 x 75.7 x 8.3 mm (6.30 x 2.98 x 0.33 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 182 g (6.42 oz) 191 g (6.74 oz)
  - IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, EDR, LE
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB USB Type-C 2.0, OTG USB Type-C 2.0
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
Display
Protection Schott Xensation glass Corning Gorilla Glass 4
Resolution 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) 1080 x 2220 pixels, 18.5:9 ratio (~411 ppi density)
Size 6.44 inches, 100.1 cm2 (~84.4% screen-to-body ratio) 6.0 inches, 91.4 cm2 (~75.5% screen-to-body ratio)
Type AMOLED Super AMOLED
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
  - ANT+ Samsung Pay
Launch
Announced 2022, July 02 2017, December. Released 2018, January
Status Available. Released 2022, July 02 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama, HDR
Single - 16 MP, f/1.7, 26mm (wide), 1/2.8”, 1.12µm, PDAF
Triple 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 1080p@30fps, gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 128GB 8GB RAM 32GB 4GB RAM, 64GB 4GB RAM, 64GB 6GB RAM
  - eMMC 5.1
Misc
Colors Midnight Galaxy, Ice Dawn Black, orchid grey, gold, blue
Models - SM-A730F
SAR EU - 0.32 W/kg (head)     1.30 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 40 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (3CA) Cat11 600/75 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Qualcomm SM6225 Snapdragon 680 4G (6 nm) Exynos 7885 (14 nm)
CPU Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver) Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPU Adreno 610 Mali-G71
OS Android 12, Funtouch 12 Android 7.1.1 (Nougat), upgradable to Android 9.0 (Pie)
Selfie camera
Dual - 16 MP, f/1.9, 26mm (wide), 1/3.06", 1.0µm 8 MP, f/1.9, 1/4.0", 1.12µm
Single 16 MP, f/2.0, (wide) -
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
  24-bit/192kHz Hi-Res audio 24-bit/192kHz audio