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ZTE nubia Z20

vivo NEX Dual Display

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 & TD-SCDMA	CDMA 800
3G Network	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
	CDMA2000 1xEV-DO
4G Network	1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 34, 38, 39, 40, 41 - EU/Asia	1, 3, 5, 7, 8, 19, 28, 38, 39, 40, 41
	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66 - NA
Speed	HSPA 42.2/5.76 Mbps, LTE (6CA) Cat18 1200/150 Mbps	HSPA 42.2/5.76 Mbps, LTE (4CA) Cat16 1024/150 Mbps

Launch
Announced	2019, August	2018, December
Status	Available. Released 2019, August	Available. Released 2018, December

Body
Dimensions	158.6 x 75.3 x 9 mm (6.24 x 2.96 x 0.35 in)	157.2 x 75.3 x 8.1 mm (6.19 x 2.96 x 0.32 in)
Weight	186 g (6.56 oz)	199 g (7.02 oz)
Build	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM	Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)

Display
Type	AMOLED, HDR10, 600 nits (typ)	Super AMOLED
Size	6.42 inches, 101.2 cm2 (~84.7% screen-to-body ratio)	6.39 inches, 100.2 cm2 (~84.7% screen-to-body ratio)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~401 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection	Corning Gorilla Glass 5
	Always-on display Secondary display (on the back): AMOLED, 5.1 inches, 720 x 1520 pixels, 330 nits (typ)	Secondary display (on the back): Super AMOLED, 5.49 inches, 1080 x 1920 pixels

Platform
OS	Android 9.0 (Pie), Nubia UI	Android 9.0 (Pie), Funtouch 4.5
Chipset	Qualcomm SM8150 Snapdragon 855+ (7 nm)	Qualcomm SDM845 Snapdragon 845 (10 nm)
CPU	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)	Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
GPU	Adreno 640 (700 MHz)	Adreno 630

Memory
Card slot	No	No
Internal	128GB 6GB RAM, 128GB 8GB RAM, 512GB 8GB RAM	128GB 10GB RAM, 256GB 8GB RAM
	UFS 3.0

Main Camera
Modules	48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, f/2.4, (telephoto), 3x optical zoom 16 MP, f/2.2, 12mm (ultrawide), 1/3.1", 1.0µm, AF	12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS 2 MP, f/1.8, 1/5.0", 1.75µm, (depth) TOF 3D, f/1.3, (depth)
Features	Dual-LED dual-tone flash, second soft flash, HDR, panorama	LED flash, HDR, panorama
Video	8K@15fps, 4K@30/60fps, 1080p@30/60fps, 720p@1920fps	4K@30fps, 1080p@30fps

Selfie Camera
Modules	Uses main cameras	No - uses main camera
Features	Dual-LED dual-tone flash, HDR, panorama
Video	8K@15fps, 4K@30/60fps, 1080p@30/60fps, 720p@1920fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	No	Yes
	32-bit/384kHz Hi-Res audio	32-bit/192kHz Hi-Res audio

Comms
WLAN	Wi-Fi 802.11 b/g/n/ac, dual-band, Wi-Fi Direct, DLNA	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth	5.1, A2DP, LE	5.0, A2DP, LE
Positioning	GPS (L1+L5), GLONASS, BDS, GALILEO	GPS, BDS, GNSS
NFC	No	No
Infrared port	No	No
Radio	No	No
USB	USB Type-C, OTG	USB Type-C 2.0, OTG

Features
Sensors	Dual fingerprint (side-mounted), accelerometer, gyro, proximity, compass	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Battery
Type	Li-Po 4000 mAh, non-removable	Li-Ion 3500 mAh, non-removable
Charging	27W wired, PD2.0	22.5W wired

Misc
Colors	Twilight Blue, Diamond Black	Polar Blue
Models	NX627J	V1821A, 1813, V1821T
Price	About 550 EUR	About 960 EUR

Tests
Performance	AnTuTu: 371150 (v7), 355478 (v8) GeekBench: 10101 (v4.4) GFXBench: 37fps (ES 3.1 onscreen)	AnTuTu: 292042 (v7), 346833 (v8) GeekBench: 2009 (v5.1)
Display	Contrast ratio: Infinite (nominal)	Contrast ratio: Infinite (nominal), 4.108 (sunlight)
Camera	Compare PHOTO / Compare VIDEO
Loudspeaker	Voice 71dB / Noise 73dB / Ring 74dB	Voice 68dB / Noise 72dB / Ring 88dB
Audio quality		Noise -94.0dB / Crosstalk -88.1dB
Battery (old)	Endurance rating 100h	Endurance rating 81h