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Xiaomi Redmi Note 4X

Xiaomi Mi 4

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Xiaomi Redmi Note 4X
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Xiaomi Redmi Note 4X

Xiaomi Mi 4

Network
Technology GSM / CDMA / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - all versions
  CDMA 800 & TD-SCDMA CDMA 800 / 1900 - Telecom 3G model
3G Network HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA - 4G model
  HSDPA 850 / 900 / 1900 / 2100 - Unicom 3G model, Telecom 3G model
  CDMA2000 1xEV-DO - Telecom 3G model
4G Network 1, 3, 5, 7, 38, 39, 40, 41 - Snapdragon model 38, 39, 40 - 4G model
  1, 3, 5, 7, 8, 38, 39, 40, 41 - Mediatek model
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA, LTE, EV-DO Rev.A 3.1 Mbps
GPRS Yes Yes
EDGE Yes Yes
Launch
Announced 2017, February 2014, July. Released 2014, August
Status Available. Released 2017, February Discontinued
Body
Dimensions 151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in) 139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)
Weight 165 g (5.82 oz) 149 g (5.26 oz)
Build Glass front, aluminum back, aluminum frame Glass front, plastic back, aluminum frame
SIM Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by) Micro-SIM
Display
Type IPS LCD IPS LCD
Size 5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio)
Resolution 1080 x 1920 pixels, 16:9 ratio (~401 ppi density) 1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
Platform
OS Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 10 Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10
Chipset Qualcomm MSM8953 Snapdragon 625 (14 nm) Qualcomm MSM8974AC Snapdragon 801 (28 nm)
CPU Octa-core 2.0 GHz Cortex-A53 Quad-core 2.5 GHz Krait 400
GPU Adreno 506 Adreno 330
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 16GB 3GB RAM, 32GB 3GB RAM, 64GB 4GB RAM 16GB 2GB RAM, 64GB 3GB RAM
 eMMC 5.1 eMMC 5.0
Main Camera
Modules 13 MP, f/2.0, 1/3.1", 1.12µm, PDAF 13 MP, f/1.8, 1/3.1", 1.12µm, AF
Features Dual-LED dual-tone flash, panorama, HDR LED flash, panorama, HDR
Video 1080p@30fps, 720p@120fps 4K@30fps, 1080p@30fps, 720p@120fps, HDR
Selfie Camera
Modules 5 MP, f/2.0 8 MP, f/1.8
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, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth 4.2, A2DP, LE 4.0, A2DP
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 Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer, gyro, proximity, compass, barometer
Battery
Type Li-Po 4100 mAh, non-removable Li-Ion 3080 mAh, non-removable
Charging 18W wired, QC2
Stand-by Up to 280 h (3G)
Misc
Colors Platinum Silver, Champagne Gold, Matte Black, Hatsune Miku, Sakura Powder Black, White
SAR 0.71 W/kg (head)     0.85 W/kg (body)    
Models 2014215
Price About 130 EUR About 230 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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