Product
Vivo Z1i
Vivo Z1i
₹18,407
Xiaomi Redmi 7A
Xiaomi Redmi 7A
₹13,311
Battery
Charging - 10W wired
Type Li-Ion 3260 mAh, non-removable Li-Po 4000 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) 146.3 x 70.4 x 9.6 mm (5.76 x 2.77 x 0.38 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 149.3 g (5.26 oz) 165 g (5.82 oz)
  - Splash resistant
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM Radio, built-in antenna
USB microUSB 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 1080 x 2280 pixels, 19:9 ratio (~403 ppi density) 720 x 1440 pixels, 18:9 ratio (~295 ppi density)
Size 6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio) 5.45 inches, 76.7 cm2 (~74.4% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2018, July. Released 2018, July 2019, May 24. Released 2019, July 04
Status Discontinued Discontinued
Main Camera
Dual 13 MP, f/2.2, PDAF 2 MP, (depth) -
Features LED flash, HDR, panorama LED flash, HDR
Single - 13 MP, f/2.2, 1/3.1", 1.12µm, PDAF - China or 12 MP, f/2.2, 1/2.9", 1.25µm, PDAF - Global, India
Video 4K@30fps, 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
Internal 128GB 4GB RAM, 128GB 8GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Black, Red Matte Black, Morning blue, Matte Blue, Matte Gold, Gem Red, Gem Blue
Models V1730DA, V1730DT MZB7995IN, M1903C3EG, M1903C3EH, M1903C3EI
SAR - 1.00 W/kg (head)     1.12 W/kg (body)    
SAR EU - 0.56 W/kg (head)     1.17 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 / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 20, 38, 40 - Global
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA, LTE
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 SDM636 Snapdragon 636 (14 nm) Qualcomm SDM439 Snapdragon 439 (12 nm)
CPU Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver) Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
GPU Adreno 509 Adreno 505
OS Android 8.1 (Oreo), Funtouch 4 Android 9.0 (Pie), upgradable to Android 10, MIUI 12
Selfie camera
Features - HDR
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 5 MP, f/2.2, 1/5.0", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Offers See on Amazon See on Amazon