Product
Xiaomi Redmi Note 4G
Xiaomi Redmi Note 4G
Vivo Z1Pro
Vivo Z1Pro
Battery
Charging - 18W wired
Music play Up to 60 h -
Stand-by Up to 775 h (3G) -
Talk time Up to 38 h (3G) -
Type Li-Po 3100 mAh, removable 5000 mAh, non-removable
Body
Build - Glass front, plastic back, plastic frame
Dimensions 154 x 78.7 x 9.5 mm (6.06 x 3.10 x 0.37 in) 162.4 x 77.3 x 8.9 mm (6.39 x 3.04 x 0.35 in)
SIM Mini-SIM Nano-SIM + Nano-SIM
Weight 185 g (6.53 oz) 201 g (7.09 oz)
Comms
Bluetooth 4.0, A2DP, LE 5.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, 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, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 720 x 1280 pixels, 16:9 ratio (~267 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
Size 5.5 inches, 83.4 cm2 (~68.8% screen-to-body ratio) 6.53 inches, 104.7 cm2 (~83.4% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2014, August. Released 2014, August 2019, July. Released 2019, July
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR LED flash, HDR, panorama
Single 13 MP, f/2.2, 28mm (wide), AF -
Triple - 16 MP, f/1.8, (wide), 1/2.8", 1.12µm, AF 8 MP, f/2.2, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 8GB 2GB RAM 64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
  eMMC 4.5 UFS 2.1
Misc
Colors Black/White Sonic Blue, Sonic Black, Mirror Black
Models - 1951, PD1911F_EX, 1918
SAR - 0.75 W/kg (head)     0.40 W/kg (body)    
Network
2G bands GSM 900 / 1800 - India GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100 - India HSDPA 850 / 900 / 2100
4G bands 3, 40 - India 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
Speed HSPA, LTE Cat4 150/50 Mbps HSPA, LTE
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  1, 2, 3, 4, 7 - Malaysia, Singapore CDMA 800 & TD-SCDMA
Our Tests
Performance - AnTuTu: 184517 (v7) GeekBench: 6001 (v4.4) GFXBench: 13fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm MSM8928 Snapdragon 400 (28 nm) Qualcomm SDM712 Snapdragon 712 (10 nm)
CPU Quad-core 1.6 GHz Cortex-A7 Octa-core (2x2.3 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU Adreno 305 Adreno 616
OS Android 4.2 (Jelly Bean), upgradable to 4.4.2 (KitKat), MIUI 5 Android 9.0 (Pie), upgradable to Android 10, Funtouch 10
Selfie camera
Features - HDR
Single 5 MP 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video 720p 1080p@60fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes