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	Compare with vivo Y51 (2020, September)	Compare with vivo S1
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vivo Y51 (2020, September)

vivo S1

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 / 2100	HSDPA 850 / 900 / 2100
4G Network	1, 3, 5, 8, 40	1, 3, 5, 7, 8, 20, 38, 40, 41 - Asia
		1, 3, 5, 8, 34, 38, 39, 40, 41 - China
Speed	HSPA, LTE	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/150 Mbps

Launch
Announced	2020, September 15	2019, July 17
Status	Available. Released 2020, September 19	Available. Released 2019, July

Body
Dimensions	159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in)	159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)
Weight	186.7 g (6.60 oz)	179 g (6.31 oz)
Build		Glass front, plastic back, plastic frame
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM

Display
Type	Super AMOLED	Super AMOLED
Size	6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio)	6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)
		Always-on display

Platform
OS	Android 10, Funtouch 10	Android 9.0 (Pie), Funtouch 9
Chipset	Qualcomm SDM665 Snapdragon 665 (11 nm)	Mediatek MT6768 Helio P65 (12 nm)
CPU	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU	Adreno 610	Mali-G52 MC2

Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	128GB 4GB RAM	64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 6GB RAM
		eMMC 5.1

Main Camera
Modules	48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)	16 MP, f/1.8, (wide), 1/2.8", 1.12µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth)
Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Video	1080p@30fps, gyro-EIS	1080p@30fps

Selfie Camera
Modules	16 MP, f/2.0, (wide), 1/3.06" 1.0µm	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Features	HDR	HDR
Video	1080p@30fps	1080p@30fps

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	No	No
Infrared port	No	No
Radio	FM radio	FM radio
USB	USB Type-C 2.0, OTG	microUSB 2.0, OTG

Features
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, optical), accelerometer, proximity, compass

Battery
Type	4500 mAh	4500 mAh, non-removable
Charging	18W wired	18W wired

Misc
Colors	Mystic Black, Jazzy Blue, Dreamy White	Diamond Black, Skyline Blue, Cosmic Green
Models		1907, V1907, 1907_19, V1913A
Price	About 180 EUR	About 230 EUR