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vivo S1

Xiaomi Redmi Note 8

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 / 1700(AWS) / 1900 / 2100
		HSDPA 850 / 900 / 2100
4G Network	1, 3, 5, 7, 8, 20, 38, 40, 41 - Asia	1, 2, 3, 4, 5, 7, 8, 20, 38, 40
	1, 3, 5, 8, 34, 38, 39, 40, 41 - China	1, 3, 5, 8, 38, 40, 41
Speed	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/150 Mbps	HSPA 42.2/5.76 Mbps, LTE (4CA) Cat12 600/50 Mbps

Launch
Announced	2019, July 17	2019, August 29
Status	Available. Released 2019, July	Available. Released 2019, October 16

Body
Dimensions	159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)	158.3 x 75.3 x 8.4 mm (6.23 x 2.96 x 0.33 in)
Weight	179 g (6.31 oz)	190 (6.70 oz)
Build	Glass front, plastic back, plastic frame	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM

Display
Type	Super AMOLED	IPS LCD
Size	6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)	6.3 inches, 97.4 cm2 (~81.7% screen-to-body ratio)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Protection		Corning Gorilla Glass 5
	Always-on display

Platform
OS	Android 9.0 (Pie), Funtouch 9	Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5
Chipset	Mediatek MT6768 Helio P65 (12 nm)	Qualcomm SDM665 Snapdragon 665 (11 nm)
CPU	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU	Mali-G52 MC2	Adreno 610

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 6GB RAM	32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
	eMMC 5.1	eMMC 5.1

Main Camera
Modules	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)	48 MP, f/1.8, 26mm (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)
Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Video	1080p@30fps	4K@30fps, 1080p@30/60/120fps; gyro-EIS

Selfie Camera
Modules	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm	13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Features	HDR	HDR, panorama
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	4.2, A2DP, LE
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, BDS
NFC	No	No
Infrared port	No	Yes
Radio	FM radio	FM radio
USB	microUSB 2.0, OTG	USB Type-C 2.0, OTG

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

Battery
Type	4500 mAh, non-removable	Li-Po 4000 mAh, non-removable
Charging	18W wired	18W wired

Misc
Colors	Diamond Black, Skyline Blue, Cosmic Green	Neptune Blue, Moonlight White, Space Black, Nebula Purple, Cosmic Purple
SAR		0.26 W/kg (head)     1.00 W/kg (body)
SAR EU		0.19 W/kg (head)     1.09 W/kg (body)
Models	1907, V1907, 1907_19, V1913A	M1908C3JH, M1908C3JG, M1908C3JI
Price	About 230 EUR	About 220 EUR

Tests
Performance		AnTuTu: 141915 (v7), 161572 (v8) GeekBench: 5590 (v4.4), 1339 (v5.1) GFXBench: 5.9fps (ES 3.1 onscreen)
Display		Contrast ratio: 1521:1 (nominal)
Loudspeaker		Voice 78dB / Noise 72dB / Ring 81dB
Audio quality		Noise -94.0dB / Crosstalk -93.3dB
Battery (old)		Endurance rating 108h