Product
Vivo V7
Vivo V7
Xiaomi Mi Max 3
Xiaomi Mi Max 3
Battery
Charging - 18W wired, QC3
Type Li-Ion 3000 mAh, non-removable Li-Ion 5500 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front, aluminum back, aluminum frame
Dimensions 149.3 x 72.8 x 7.9 mm (5.88 x 2.87 x 0.31 in) 176.2 x 87.4 x 8 mm (6.94 x 3.44 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 139 g (4.90 oz) 221 g (7.80 oz)
Comms
Bluetooth 4.2, A2DP, LE 5.0, A2DP, LE
Infrared port - Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio, recording FM radio
USB microUSB 2.0, OTG USB Type-C
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Display
Protection - To be confirmed
Resolution 720 x 1440 pixels, 18:9 ratio (~282 ppi density) 1080 x 2160 pixels, 18:9 ratio (~350 ppi density)
Size 5.7 inches, 83.8 cm2 (~77.1% screen-to-body ratio) 6.9 inches, 122.9 cm2 (~79.8% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2017, November. Released 2017, December 2018, July. Released 2018, July
Status Discontinued Discontinued
Main Camera
Dual - 12 MP, f/1.9, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.2, (depth)
Features LED flash, HDR Dual-LED flash, HDR, panorama
Single 16 MP, f/2.0, 1/3.0", 1.0µm, PDAF -
Video 1080p@30fps 4K@30fps, 720p/1080p@30fps (gyro-EIS), 720p@120fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 32GB 4GB RAM 64GB 4GB RAM, 128GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Champagne Gold, Matte Black, Energetic Blue Black, Champagne Gold, Blue
Models 1718 M1804E4A
SAR 0.94 W/kg (head)     0.67 W/kg (body)     1.58 W/kg (head)     1.42 W/kg (body)    
Network
2G bands GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 40, 41 1, 3, 4, 5, 7, 8, 20, 34, 38, 39, 40, 41
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 3, 5, 8, 38, 40, 41 - India CDMA2000 1xEV-DO
Our Tests
Audio quality Noise -93.5dB / Crosstalk -83.1dB Noise -93.7dB / Crosstalk -94.0dB
Battery (old) Endurance rating 77h Endurance rating 115h
Camera Photo / Video Photo / Video
Display Contrast ratio: 1593:1 (nominal), 2.404 (sunlight) Contrast ratio: 1462 (nominal), 3.061 (sunlight)
Loudspeaker Voice 65dB / Noise 73dB / Ring 83dB Voice 68dB / Noise 71dB / Ring 83dB
Performance AnTuTu: 71167 (v7) GeekBench: 3935 (v4.4) GFXBench: 6.6fps (ES 3.1 onscreen) AnTuTu: 119229 (v7) GeekBench: 4907 (v4.4) GFXBench: 6fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Qualcomm SDM636 Snapdragon 636 (14 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver)
GPU Adreno 506 Adreno 509
OS Android 7.1.2 (Nougat), Funtouch 3.2 Android 8.1 (Oreo), upgradable to Android 10, MIUI 12
Selfie camera
Single 24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm 8 MP, f/2.0, 1/4.0", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers