Product
Xiaomi Mi 4 LTE
Xiaomi Mi 4 LTE
Vivo Y12
Vivo Y12
Battery
Charging 18W wired, QC2 -
Type Li-Ion 3080 mAh, non-removable 5000 mAh, non-removable
Body
Build - Glass front, plastic back, plastic frame
Dimensions 139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in) 159.4 x 76.8 x 8.9 mm (6.28 x 3.02 x 0.35 in)
SIM Micro-SIM Nano-SIM + Nano-SIM
Weight 149 g (5.26 oz) 190.5 g (6.74 oz)
Comms
Bluetooth 4.0, A2DP 5.0, A2DP, LE
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, 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, Wi-Fi Direct, DLNA, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 720 x 1544 pixels, 19.3:9 ratio (~268 ppi density)
Size 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) 6.35 inches, 99.6 cm2 (~81.4% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass, barometer Fingerprint (rear-mounted), accelerometer, proximity, compass
Launch
Announced 2014, December. Released 2014, December 2019, June 20. Released 2019, June
Status Discontinued Discontinued
Main Camera
Features LED flash, panorama, HDR LED flash, HDR, panorama
Single 13 MP, f/1.8, 1/3.1", 1.12µm, AF -
Triple - 13 MP, f/2.2, PDAF 8 MP, f/2.2, 16mm (ultrawide) 2 MP, f/2.4, (depth)
Video 4K@30fps, 1080p@30fps, 720p@120fps, HDR 1080p@30fps
Memory
Card slot No microSDXC (dedicated slot)
Internal 16GB 3GB RAM 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
  eMMC 5.0 eMMC 5.1
Misc
Colors White Aqua Blue, Burgundy Red
Models - 1904, 1940
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands LTE - international model 1, 3, 5, 8, 28, 38, 40, 41
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Qualcomm MSM8974AC Snapdragon 801 (28 nm) Mediatek MT6762 Helio P22 (12 nm)
CPU Quad-core 2.5 GHz Krait 400 Octa-core 2.0 GHz Cortex-A53
GPU Adreno 330 PowerVR GE8320
OS Android 4.4.3 (KitKat), MIUI 5 Android 9.0 (Pie), Funtouch 9
Selfie camera
Single 8 MP, f/1.8 8 MP, f/2.2
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes