Product
Xiaomi Mi 4
Xiaomi Mi 4
Xiaomi Redmi 6A
Xiaomi Redmi 6A
Battery
Charging 18W wired, QC2 -
Stand-by Up to 280 h (3G) -
Type Li-Ion 3080 mAh, non-removable Li-Ion 3000 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) 147.5 x 71.5 x 8.3 mm (5.81 x 2.81 x 0.33 in)
SIM Micro-SIM Nano-SIM + Nano-SIM
Weight 149 g (5.26 oz) 145 g (5.11 oz)
Comms
Bluetooth 4.0, A2DP 4.2, A2DP, 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) 720 x 1440 pixels, 18:9 ratio (~295 ppi density)
Size 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) 5.45 inches, 76.7 cm2 (~72.7% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass, barometer Accelerometer, proximity, compass
Launch
Announced 2014, July. Released 2014, August 2018, June. Released 2018, June
Status Discontinued Discontinued
Main Camera
Features LED flash, panorama, HDR LED flash, HDR, panorama
Single 13 MP, f/2.2, PDAF
Video 4K@30fps, 1080p@30fps, 720p@120fps, HDR 1080p@30fps
Memory
Card slot No microSDXC (dedicated slot)
Internal 16GB 2GB RAM, 64GB 3GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM
eMMC 5.0 eMMC 5.1
Misc
Colors Black, White Black, Grey, Blue, Gold, Rose Gold
Models 2014215 M1804C3CG, M1804C3CH, M1804C3CI
SAR
SAR EU -
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, 2, 3, 4, 5, 7, 8, 20, 38, 40 - Global
EDGE Yes -
GPRS Yes -
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / CDMA / HSPA / LTE
CDMA2000 1xEV-DO - Telecom 3G model 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
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 -
Performance - AnTuTu: 61660 (v7) GeekBench: 2450 (v4.4) GFXBench: 3.1fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm MSM8974AC Snapdragon 801 (28 nm) Mediatek MT6761 Helio A22 (12 nm)
CPU Quad-core 2.5 GHz Krait 400 Quad-core 2.0 GHz Cortex-A53
GPU Adreno 330 PowerVR GE8320
OS Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 Android 8.1 (Oreo), planned upgrade to Android 10, MIUI 12
Selfie camera
Single 8 MP, f/1.8 5 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes