Xiaomi Mi A3 vs vivo Z3x

Phones Images

PHONES
Phone Names	Xiaomi Mi A3	vivo Z3x

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 1700 / 1900 / 2100	HSDPA 850 / 900 / 2100
4G bands	1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40	1, 3, 5, 8, 34, 38, 39, 40, 41
Speed	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology	GSM / HSPA / LTE	GSM / CDMA / HSPA / LTE
	-	CDMA 800 & TD-SCDMA

Launch
Announced	2019, July 17. Released 2019, July 24	2019, April. Released 2019, May
Status	Discontinued	Discontinued

Body
Build	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame	Glass front, plastic back, plastic frame
Dimensions	153.5 x 71.9 x 8.5 mm (6.04 x 2.83 x 0.33 in)	154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in)
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	173.8 g (6.14 oz)	150 g (5.29 oz)

Display
Protection	Corning Gorilla Glass 5	-
Resolution	720 x 1560 pixels, 19.5:9 ratio (~282 ppi density)	1080 x 2280 pixels, 19:9 ratio (~403 ppi density)
Size	6.09 inches, 91.0 cm2 (~82.5% screen-to-body ratio)	6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio)
Type	Super AMOLED	IPS LCD

Platform
CPU	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)	Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Chipset	Qualcomm SDM665 Snapdragon 665 (11 nm)	Qualcomm SDM660 Snapdragon 660 (14 nm)
GPU	Adreno 610	Adreno 512
OS	Android 9.0 (Pie), upgradable to Android 11, Android One	Android 9.0 (Pie), Funtouch 9

Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM	64GB 4GB RAM, 64GB 6GB RAM
	UFS 2.1	eMMC 5.1

Main Camera
Dual	-	13 MP, f/2.2, PDAF Auxiliary lens
Features	LED flash, HDR, panorama	LED flash, panorama
Triple	48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm Auxiliary lens	-
Video	4K@30fps, 1080p@30/60/120fps	1080p@30fps

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

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes

Comms
Bluetooth	5.0, A2DP, LE, aptX HD	5.0, A2DP, LE
Infrared port	Yes	-
NFC	No	No
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, BDS
Radio	FM radio	FM radio
USB	USB Type-C 2.0	microUSB 2.0, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct

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

Battery
Charging	18W wired, QC3	-
Type	Li-Po 4030 mAh, non-removable	Li-Ion 3260 mAh, non-removable

Misc
Colors	Kind of Gray, Not just Blue, More than White	Black, Red, Aurora
Models	M1906F9SH, M1906F9SI	V1730GA
Price	About 230 EUR	About 160 EUR
SAR	0.53 W/kg (head)     0.72 W/kg (body)	-
SAR EU	0.30 W/kg (head)     1.10 W/kg (body)	-

Tests
Audio quality	Noise -93.7dB / Crosstalk -93.0dB	-
Battery life	Endurance rating 101h	-
Camera	Photo / Video	-
Display	Contrast ratio: Infinite (nominal)	-
Loudspeaker	Voice 74dB / Noise 74dB / Ring 81dB	-
Performance	Basemark OS II 2.0: 2345Basemark X: 17948	-

OUR TESTS
Audio quality	Noise -93.7dB / Crosstalk -93.0dB	-
Battery (old)	Endurance rating 101h	-
Camera	Photo / Video	-
Display	363 nits max brightness (measured)	-
Loudspeaker	Voice 74dB / Noise 74dB / Ring 81dB	-
Performance	Basemark OS II 2.0: 2345Basemark X: 17948	-