Product
Xiaomi Mi 4
Xiaomi Mi 4
Honor 6X
Honor 6X
Battery
Charging 18W wired, QC2 -
Stand-by Up to 280 h (3G) Up to 650 h (3G)
Talk time - Up to 23 h (3G)
Type Li-Ion 3080 mAh, non-removable Li-Ion 3340 mAh, non-removable
Body
Build Glass front, plastic back, aluminum frame Glass front, aluminum back, aluminum frame
Dimensions 139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in) 150.9 x 76.2 x 8.2 mm (5.94 x 3.00 x 0.32 in)
SIM Micro-SIM Nano-SIM + Nano-SIM
Weight 149 g (5.26 oz) 162 g (5.71 oz)
Comms
Bluetooth 4.0, A2DP 4.1, A2DP, EDR, LE
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0
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) 1080 x 1920 pixels, 16:9 ratio (~403 ppi density)
Size 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) 5.5 inches, 82.6 cm2 (~71.8% 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, July. Released 2014, August 2016, October. Released 2016, October
Status Discontinued Discontinued
Main Camera
Dual - 12 MP, 1/2.9", 1.25µm, 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 (uses shared SIM slot)
Internal 16GB 2GB RAM, 64GB 3GB RAM 32GB 3GB RAM, 64GB 4GB RAM
  eMMC 5.0 -
Misc
Colors Black, White Gray, Gold, Silver
Models 2014215 BLN-AL10, BLL-L22, BLN-L21, BLL-L21, BLN-L22, BLL-L23, BLN-L24, BLN-AL40, BLN-TL10, BLN-AL20, BLN-AL30
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 - SIM 1 & SIM 2
3G bands TD-SCDMA - 4G model HSDPA 900 / 1900 / 2100
4G bands 38, 39, 40 - 4G model 1, 3, 7, 8, 38
EDGE Yes -
GPRS Yes -
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / HSPA / LTE
  CDMA2000 1xEV-DO - Telecom 3G model -
Our Tests
Audio quality Noise -91.6dB / Crosstalk -49.7dB Noise - 87.9 / Crosstalk - 86.4
Battery (old) Endurance rating 68h Endurance rating 84h
Camera Photo / Video -
Display Contrast ratio: 929 (nominal), 2.424 (sunlight) -
Loudspeaker Voice 62dB / Noise 62dB / Ring 66dB Voice 68dB / Noise 67dB / Ring 79dB
Performance - GFXBench: 4.8fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm MSM8974AC Snapdragon 801 (28 nm) Kirin 655 (16 nm)
CPU Quad-core 2.5 GHz Krait 400 Octa-core (4x2.1 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)
GPU Adreno 330 Mali-T830MP2
OS Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), EMUI 5
Selfie camera
Single 8 MP, f/1.8 8 MP
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes