Product
Vivo Z1
Vivo Z1
Vivo S1
Vivo S1
Battery
Charging - 18W wired
Type Li-Ion 3260 mAh, non-removable 4500 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front, plastic back, plastic frame
Dimensions 154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in) 159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 149.3 g (5.26 oz) 179 g (6.31 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC No No
Positioning GPS, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 1080 x 2280 pixels, 19:9 ratio (~403 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)
Size 6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio) 6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)
Type IPS LCD Super AMOLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (under display, optical), accelerometer, proximity, compass
Launch
Announced 2018, May. Released 2018, June 2019, July 17. Released 2019, July
Status Discontinued Discontinued
Main Camera
Dual 13 MP, PDAF 2 MP, (depth) -
Features LED flash, HDR, panorama LED flash, HDR, panorama
Triple - 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)
Video 4K@30fps, 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Sapphire blue, Enamel blue, Hyun red, Enamel black, Black gold limited edition, Aurora Special Edition Diamond Black, Skyline Blue, Cosmic Green
Models V1801A0 1907, V1907, 1907_19, V1913A
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 20, 38, 40, 41 - Asia
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/150 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  CDMA 800 & TD-SCDMA 1, 3, 5, 8, 34, 38, 39, 40, 41 - China
Platform
Chipset Qualcomm SDM660 Snapdragon 660 (14 nm) Mediatek MT6768 Helio P65 (12 nm)
CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU Adreno 512 Mali-G52 MC2
OS Android 8.1 (Oreo), Funtouch 4 Android 9.0 (Pie), Funtouch 9
Selfie camera
Features - HDR
Single 12 MP, f/2.0, (wide), 1/2.8", 1.28µm 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes