Product
Vivo Y71
Vivo Y71
Vivo Z3x
Vivo Z3x
Battery
Type Li-Ion 3360 mAh, non-removable Li-Ion 3260 mAh, non-removable
Body
Build Glass front (Gorilla Glass 3), aluminum back, aluminum frame Glass front, plastic back, plastic frame
Dimensions 155.9 x 75.7 x 7.8 mm (6.14 x 2.98 x 0.31 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 150 g (5.29 oz) 150 g (5.29 oz)
Comms
Bluetooth 4.2, A2DP, LE 5.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 -
Resolution 720 x 1440 pixels, 18:9 ratio (~268 ppi density) 1080 x 2280 pixels, 19:9 ratio (~403 ppi density)
Size 6.0 inches, 92.9 cm2 (~78.7% screen-to-body ratio) 6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, proximity, compass
Launch
Announced 2018, April. Released 2018, April 2019, April. Released 2019, May
Status Discontinued Discontinued
Main Camera
Dual - 13 MP, f/2.2, PDAF 2 MP, f/2.4, (depth)
Features LED flash, HDR LED flash, panorama
Single 13 MP, f/2.2, PDAF -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 16GB 3GB RAM, 32GB 3GB RAM, 32GB 4GB RAM 64GB 4GB RAM, 64GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Black, Gold Black, Red, Aurora
Models 1724, 1801i V1730GA
Network
2G bands GSM 900 / 1800 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 3, 5, 8, 34, 38, 39, 40, 41
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  - CDMA 800 & TD-SCDMA
Platform
Chipset Qualcomm MSM8917 Snapdragon 425 (28 nm) Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU Quad-core 1.4 GHz Cortex-A53 Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 308 Adreno 512
OS Android 8.1 (Oreo), Funtouch 4 Android 9.0 (Pie), Funtouch 9
Selfie camera
Single 5 MP, f/2.2 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes