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Xiaomi Mi 4

Xiaomi Redmi Note 4X

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Xiaomi Mi 4
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Xiaomi Mi 4

Xiaomi Redmi Note 4X

Network
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - all versions GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  CDMA 800 / 1900 - Telecom 3G model CDMA 800 & TD-SCDMA
3G Network TD-SCDMA - 4G model HSDPA 850 / 900 / 1900 / 2100
  HSDPA 850 / 900 / 1900 / 2100 - Unicom 3G model, Telecom 3G model
  CDMA2000 1xEV-DO - Telecom 3G model
4G Network 38, 39, 40 - 4G model 1, 3, 5, 7, 38, 39, 40, 41 - Snapdragon model
  1, 3, 5, 7, 8, 38, 39, 40, 41 - Mediatek model
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Launch
Announced 2014, July. Released 2014, August 2017, February
Status Discontinued Available. Released 2017, February
Body
Dimensions 139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in) 151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in)
Weight 149 g (5.26 oz) 165 g (5.82 oz)
Build Glass front, plastic back, aluminum frame Glass front, aluminum back, aluminum frame
SIM Micro-SIM Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
Display
Type IPS LCD IPS LCD
Size 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio)
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Platform
OS Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 10
Chipset Qualcomm MSM8974AC Snapdragon 801 (28 nm) Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU Quad-core 2.5 GHz Krait 400 Octa-core 2.0 GHz Cortex-A53
GPU Adreno 330 Adreno 506
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 64GB 3GB RAM 16GB 3GB RAM, 32GB 3GB RAM, 64GB 4GB RAM
 eMMC 5.0 eMMC 5.1
Main Camera
Modules 13 MP, f/1.8, 1/3.1", 1.12µm, AF 13 MP, f/2.0, 1/3.1", 1.12µm, PDAF
Features LED flash, panorama, HDR Dual-LED dual-tone flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, 720p@120fps, HDR 1080p@30fps, 720p@120fps
Selfie Camera
Modules 8 MP, f/1.8 5 MP, f/2.0
Video 1080p@30fps 1080p@30fps
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Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
  24-bit/192kHz audio
Comms
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
Bluetooth 4.0, A2DP 4.2, A2DP, LE
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
NFC No No
Infrared port Yes Yes
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
Features
Sensors Accelerometer, gyro, proximity, compass, barometer Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 3080 mAh, non-removable Li-Po 4100 mAh, non-removable
Charging 18W wired, QC2
Stand-by Up to 280 h (3G)
Misc
Colors Black, White Platinum Silver, Champagne Gold, Matte Black, Hatsune Miku, Sakura Powder
SAR 0.71 W/kg (head)     0.85 W/kg (body)    
Models 2014215
Price About 230 EUR About 130 EUR
Tests
Display Contrast ratio: 929 (nominal), 2.424 (sunlight)
Loudspeaker Voice 62dB / Noise 62dB / Ring 66dB
Audio quality Noise -91.6dB / Crosstalk -49.7dB
Battery (old) Endurance rating 68h

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