Product
Xiaomi Mi 4
Xiaomi Mi 4
Vivo Z1 Lite
Vivo Z1 Lite
Battery
Charging 18W wired, QC2 -
Stand-by Up to 280 h (3G) -
Type Li-Ion 3080 mAh, non-removable Li-Ion 3260 mAh, non-removable
Body
Build Glass front, plastic back, aluminum frame 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) 154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in)
SIM Micro-SIM Nano-SIM + Nano-SIM
Weight 149 g (5.26 oz) 149 g (5.26 oz)
Comms
Bluetooth 4.0, A2DP 5.0, A2DP, LE
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, BDS GPS, BDS
Radio FM radio FM radio, recording
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 a/b/g/n, Wi-Fi Direct
Display
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 1080 x 2280 pixels, 19:9 ratio (~403 ppi density)
Size 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) 6.26 inches, 97.8 cm2 (~84.2% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass, barometer Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2014, July. Released 2014, August 2018, November. Released 2018, November
Status Discontinued Discontinued
Main Camera
Dual - 16 MP, f/2.0, PDAF 2 MP, (depth)
Features LED flash, panorama, HDR LED flash, HDR, panorama
Single 13 MP, f/1.8, 1/3.1", 1.12µm, AF -
Video 4K@30fps, 1080p@30fps, 720p@120fps, HDR 1080p@30fps
Memory
Card slot No microSDXC
Internal 16GB 2GB RAM, 64GB 3GB RAM 32GB 4GB RAM
  eMMC 5.0 eMMC 5.1
Misc
Colors Black, White Black, Red, Aurora
Models 2014215 -
SAR 0.71 W/kg (head)     0.85 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 - all versions GSM 850 / 900 / 1800 / 1900
3G bands TD-SCDMA - 4G model HSDPA 850 / 900 / 1900 / 2100
4G bands 38, 39, 40 - 4G model 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
EDGE Yes -
GPRS Yes -
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / CDMA / HSPA / LTE
  CDMA2000 1xEV-DO - Telecom 3G model CDMA 800 & TD-SCDMA
Our Tests
Audio quality Noise -91.6dB / Crosstalk -49.7dB -
Battery (old) Endurance rating 68h -
Camera Photo / Video -
Display Contrast ratio: 929 (nominal), 2.424 (sunlight) -
Loudspeaker Voice 62dB / Noise 62dB / Ring 66dB -
Platform
Chipset Qualcomm MSM8974AC Snapdragon 801 (28 nm) Qualcomm MSM8953-Pro Snapdragon 626 (14 nm)
CPU Quad-core 2.5 GHz Krait 400 Octa-core 2.2 GHz Cortex-A53
GPU Adreno 330 Adreno 506
OS Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 Android 8.1 (Oreo), Funtouch 4
Selfie camera
Single 8 MP, f/1.8 16 MP, f/2.2, 26mm (wide), 1/3.06", 1.0µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes