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Xiaomi Mi Mix 2S

vivo X21

Network
Technology	GSM / CDMA / HSPA / EVDO / LTE	GSM / CDMA / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
	CDMA 800 / 1900 & TD-SCDMA	CDMA 800 & TD-SCDMA
3G Network	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
	CDMA2000 1xEV-DO
4G Network	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30, 34, 38, 39, 40, 41	1, 2, 3, 5, 8, 34, 38, 39, 40, 41
Speed	HSPA 42.2/5.76 Mbps, LTE (3CA) Cat18 1200/100 Mbps	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps

Launch
Announced	2018, March	2018, March
Status	Available. Released 2018, April	Available. Released 2018, March

Body
Dimensions	150.9 x 74.9 x 8.1 mm (5.94 x 2.95 x 0.32 in)	154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
Weight	191 g (6.74 oz)	156.2 g (5.50 oz)
Build	Glass front (Gorilla Glass 4), ceramic back, aluminum frame	Glass front (Gorilla Glass 3), aluminum back, aluminum frame
SIM	Dual SIM (Nano-SIM, dual stand-by)	Hybrid Dual SIM (Nano-SIM, dual stand-by)

Display
Type	IPS LCD	Super AMOLED
Size	5.99 inches, 92.6 cm2 (~81.9% screen-to-body ratio)	6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio)
Resolution	1080 x 2160 pixels, 18:9 ratio (~403 ppi density)	1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
Protection	Corning Gorilla Glass 4	Corning Gorilla Glass 3

Platform
OS	Android 8.0 (Oreo), upgradable to Android 10, MIUI 12	Android 8.1 (Oreo), Funtouch 4
Chipset	Qualcomm SDM845 Snapdragon 845 (10 nm)	Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU	Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)	Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU	Adreno 630	Adreno 512

Memory
Card slot	No	microSDXC (uses shared SIM slot)
Internal	64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM	64GB 6GB RAM, 128GB 6GB RAM
	UFS 2.1	eMMC 5.1

Main Camera
Modules	12 MP, f/1.8, (wide), 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS 12 MP, f/2.4, (telephoto), 1/3.4", 1.0µm, AF, 2x optical zoom	12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.4, (depth)
Features	Dual-LED dual-tone flash, HDR, panorama	LED flash, HDR, panorama
Video	4K@30fps, 1080p@30/120fps, 720p@240fps	1080p@30fps

Selfie Camera
Modules	5 MP, f/2.0, (wide), 1/4.0", 1.4µm	12 MP, f/2.0, (wide), 1/2.8", 1.28µm
Video	1080p@30fps	1080p@30fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	No	Yes
		32-bit/192kHz Hi-Res audio

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, BDS	GPS, GLONASS
NFC	Yes	No
Infrared port	No	No
Radio	No	FM radio
USB	USB Type-C 2.0	microUSB 2.0, OTG

Features
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, compass	Fingerprint (rear-mounted), accelerometer, proximity, compass
	Virtual proximity sensing

Battery
Type	Li-Ion 3400 mAh, non-removable	Li-Ion 3200 mAh, non-removable
Charging	18W wired, QC3 7.5W wireless (Qi)	18W wired

Misc
Colors	Black, White	Black, Aurora White, Ruby Red
SAR	0.54 W/kg (head)     1.59 W/kg (body)
Models	M1803D5XA	1725, X21A
Price	About 270 EUR	About 450 EUR

Tests
Performance	AnTuTu: 270814 (v7) GeekBench: 9158 (v4.4) GFXBench: 34fps (ES 3.1 onscreen)
Loudspeaker	Voice 68dB / Noise 70dB / Ring 81dB
Audio quality	Noise -93.0dB / Crosstalk -92.5dB
Battery (old)	Endurance rating 59h