Comparison of Vivo Y51a and Alcatel 1S (2021)

Comparison of Vivo Y51a and Alcatel 1S (2021) [S]ave

Attribute	Alcatel 1S (2021) ×	Vivo Y51a ×
General
Brand	Alcatel	Vivo
Launch
Announced	2021-01-12	2021-01-08
Body
Width (mm)	8.8	8.4
Length (mm)	165.6	163.9
Height (mm)	75.6	75.3
Weight (g)	190	188
SIM	Single SIM (Nano-SIM)	Dual SIM (Nano-SIM, dual stand-by)
Front	Glass	-
Back	Plastic	-
Frame	Plastic	-
Network
Technology	GSM HSPA LTE	GSM HSPA LTE
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 2100
4G bands	1, 3, 5, 7, 8, 20, 28, 38, 40, 41	1, 3, 5, 8, 40
Speed	HSPA 42.2/5.76 Mbps LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A
Platform
OS	Android 11	Android 11
Chipset	Mediatek MT6762D Helio P22 (12 nm)	Qualcomm SM6115 Snapdragon 662 (11 nm)
CPU	Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU	PowerVR GE8320	Adreno 610
Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	32GB 3GB RAM	128GB 8GB RAM
Display
Size (in)	6.52	6.58
Resolution (px)	720 x 1600	1080 x 2408
Display Type	IPS LCD	IPS LCD
Battery
Type	Li-Po	Li-Po
Charging	Charging 10W	Fast charging 18W, 70% in 67 min (advertised)
Capcity (mAh)	4000	5000
Main Camera
Main Camera Type	Triple	Triple
Main Camera Properties	13 MP, f/2.0, 27mm (wide), 1/3.06", 1.12µm, PDAF 2 MP, f/2.4, (depth) 2 MP, f/2.4, (macro)	2 MP, f/2.4, (macro) 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm
Main Camera Video	1080p@30fps	4K@30fps, 1080p@30fps, gyro-EIS
Main Camera Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Selfie Camera
Selfie Camera Type	Single	Single
Selfie Camera Properties	5 MP, f/2.2, 27mm (wide), 1/5", 1.12µm	16 MP, f/2.0, (wide), 1/3.06" 1.0µm
Selfie Camera Video	1080p@30fps	1080p@30fps
Selfie Camera Features	HDR	HDR
Comms
WLAN	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	5.0, A2DP, LE	5.0, A2DP, LE
GPS	+	+
NFC	-	-
Radio	FM radio	FM radio
USB	microUSB 2.0, USB On-The-Go	USB Type-C 2.0, USB On-The-Go
Sound
Loudspeaker	+	+
3.5mm jack	+	+
Features
Sensors	Fingerprint (rear-mounted) accelerometer compass proximity	Fingerprint (side-mounted) accelerometer compass gyro proximity
Misc
Colors	Elegant Black Twilight Blue	Crystal Symphony Titanium Sapphire
Models	6025H	-