Product
Vivo Z1i
Vivo Z1i
₹18,407
Xiaomi Mi A3
Xiaomi Mi A3
₹14,999
Battery
Charging - 18W wired, QC3
Type Li-Ion 3260 mAh, non-removable Li-Po 4030 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions 154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in) 153.5 x 71.9 x 8.5 mm (6.04 x 2.83 x 0.33 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 149.3 g (5.26 oz) 173.8 g (6.14 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE, aptX HD
Infrared port - Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG USB Type-C 2.0
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
Display
Protection - Corning Gorilla Glass 5
Resolution 1080 x 2280 pixels, 19:9 ratio (~403 ppi density) 720 x 1560 pixels, 19.5:9 ratio (~282 ppi density)
Size 6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio) 6.09 inches, 91.0 cm2 (~82.5% screen-to-body ratio)
Type IPS LCD Super AMOLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2018, July. Released 2018, July 2019, July 17. Released 2019, July 24
Status Discontinued Discontinued
Main Camera
Dual 13 MP, f/2.2, PDAF 2 MP, (depth) -
Features LED flash, HDR, panorama LED flash, HDR, 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 2 MP, f/2.4, (depth)
Video 4K@30fps, 1080p@30fps 4K@30fps, 1080p@30/60/120fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 128GB 4GB RAM, 128GB 8GB RAM 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
  eMMC 5.1 UFS 2.1
Misc
Colors Black, Red Kind of Gray, Not just Blue, More than White
Models V1730DA, V1730DT M1906F9SH, M1906F9SI
SAR - 0.53 W/kg (head)     0.72 W/kg (body)    
SAR EU - 0.30 W/kg (head)     1.10 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  CDMA 800 & TD-SCDMA -
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
Platform
Chipset Qualcomm SDM636 Snapdragon 636 (14 nm) Qualcomm SDM665 Snapdragon 665 (11 nm)
CPU Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver) Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 509 Adreno 610
OS Android 8.1 (Oreo), Funtouch 4 Android 9.0 (Pie), upgradable to Android 11, Android One
Selfie camera
Features - HDR
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 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
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