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Lenovo K6

Xiaomi Redmi 4 (4X)

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Lenovo K6
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Lenovo K6

Xiaomi Redmi 4 (4X)

Network
Technology GSM / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE (unspecified) 1, 3, 5, 7, 8, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/100 Mbps
Launch
Announced 2016, September. Released 2016, November 2017, May
Status Discontinued Available. Released 2017, May
Body
Dimensions 141.9 x 70.3 x 8.2 mm (5.59 x 2.77 x 0.32 in) 139.2 x 70 x 8.7 mm (5.48 x 2.76 x 0.34 in)
Weight 140 g (4.94 oz) 150 g (5.29 oz)
Build Glass front (Gorilla Glass), aluminum back, aluminum frame, plastic ends
SIM Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) Hybrid Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
Display
Type IPS LCD IPS LCD
Size 5.0 inches, 68.9 cm2 (~69.1% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~70.7% screen-to-body ratio)
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection Corning Gorilla Glass (unspecified version)
Platform
OS Android 6.0 (Marshmallow) Android 6.0.1 (Marshmallow), upgradable to 7.1.2 (Nougat), MIUI 11
Chipset Qualcomm MSM8937 Snapdragon 430 (28 nm) Qualcomm MSM8940 Snapdragon 435 (28 nm)
CPU Octa-core 1.4 GHz Cortex-A53 Octa-core 1.4 GHz Cortex-A53
GPU Adreno 505 Adreno 505
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 32GB 2GB RAM 16GB 2GB RAM, 16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
 eMMC 5.1 eMMC 5.1
Main Camera
Modules 13 MP, AF 13 MP, f/2.0, PDAF
Features LED flash, HDR, panorama LED flash, HDR, panorama
Video 1080p@30fps 1080p@30fps
Selfie Camera
Modules 8 MP 5 MP, f/2.2
Video 1080p@30fps 1080p@30fps
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Sound
Loudspeaker Yes, with stereo speakers Yes
3.5mm jack Yes Yes
Comms
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth 4.1, A2DP, LE 4.2, A2DP, LE
Positioning GPS GPS, GLONASS, BDS
NFC No No
Infrared port No Yes
Radio FM radio FM radio
USB microUSB 2.0 microUSB 2.0
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 3000 mAh, non-removable Li-Po 4100 mAh, non-removable
Stand-by Up to 432 h (3G)
Talk time Up to 36 h (3G)
Music play Up to 87 h
Misc
Colors Silver, Gold, Dark Grey Black, Gold
SAR 0.77 W/kg (head)     0.83 W/kg (body)    
Models K33a48, K33b36 2016060, 2016090, MAG138, MAE136, Redmi 4, Redmi 4X
Price About 200 EUR About 110 EUR
Tests
Performance GeekBench: 1819 (v4.4)
GFXBench: 5.1fps (ES 3.1 onscreen)
Display Contrast ratio: 915 (nominal), 2.920 (sunlight)
Loudspeaker Voice 64dB / Noise 70dB / Ring 72dB
Audio quality Noise -94.3dB / Crosstalk -94dB
Battery (old) Endurance rating 80h

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