Lenovo Vibe X3 vs Lenovo Vibe K4 Note

Phones Images
PHONES
Phone Names Lenovo Vibe X3 Lenovo Vibe K4 Note
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 38, 40, 411, 3, 5, 7, 8, 20 - A7010
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 MbpsHSPA, LTE Cat4 150/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2015, November. Released 2015, December2016, January 05. Released 2016, January 05
StatusDiscontinuedDiscontinued
Body
Build-Glass front (Gorilla Glass 3), plastic back, aluminum frame
Dimensions154 x 76.5 x 9.3 mm (6.06 x 3.01 x 0.37 in)153.6 x 76.5 x 9.2 mm (6.05 x 3.01 x 0.36 in)
SIMNano-SIM + Nano-SIMDual SIM (Micro-SIM, dual stand-by)
Weight175 g (6.17 oz)158 g (5.57 oz)
Display
ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3
Resolution1080 x 1920 pixels, 16:9 ratio (~401 ppi density)1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size5.5 inches, 83.4 cm2 (~70.8% screen-to-body ratio)5.5 inches, 83.4 cm2 (~71.0% screen-to-body ratio)
TypeIPS LCDIPS LCD
Platform
CPUHexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)Octa-core 1.3 GHz Cortex-A53
ChipsetQualcomm MSM8992 Snapdragon 808 (20 nm)Mediatek MT6753 (28 nm)
GPUAdreno 418Mali-T720MP3
OSAndroid 5.1 (Lollipop)Android 5.1.1 (Lollipop), upgradable to 6.0 (Marshmallow)
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (dedicated slot)
Internal32GB 3GB RAM, 64GB 3GB RAM8GB 2GB RAM, 16GB 2GB RAM, 16GB 3GB RAM (A7010 a48), 32GB 2GB RAM
 eMMC 5.0-
Main Camera
FeaturesDual-LED dual-tone flash, panorama, HDRDual-LED dual-tone flash, HDR, panorama
Single21 MP, f/2.0, 27mm (wide), PDAF13 MP, f/2.2, PDAF
Video4K@30fps, 1080p@30fps1080p@30fps
Selfie camera
Single8 MP5 MP, f/2.2
Video1080p@30fps-
 -No
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio-
Comms
Bluetooth4.1, A2DP, LE4.0, A2DP, LE
Infrared portYes-
NFCYesYes
PositioningGPS, GLONASSGPS
RadioFM radioFM radio, recording
USBmicroUSB 2.0microUSB 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspotWi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Features
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
 -MP3/WAV/eAAC+ player MP4/H.264 player Organizer Document viewer Photo viewer/editor Voice memo/dial/commands Predictive text input
Battery
Charging18W wired, QC2 (market dependent)-
Stand-byUp to 618 h (3G)Up to 265 h (3G)
Talk timeUp to 31 h (3G)Up to 23 h (2G) / Up to 22 h (3G)
TypeLi-Po 3500 mAh, non-removableLi-Po 3300 mAh, non-removable
Misc
ColorsWhite, BlackBlack
ModelsX3a40, X3c50A7010a48
PriceAbout 300 EURAbout 190 EUR
SAR EU-0.84 W/kg (head)
OUR TESTS
Audio quality-Noise -93.3dB / Crosstalk -93.6dB
Battery (old)-Endurance rating 73h
Camera-Photo / Video
Display-Contrast ratio: 940:1 (nominal), 2.254 (sunlight)
Loudspeaker-Voice 74dB / Noise 66dB / Ring 72dB
Performance-Basemark OS II 2.0: 729Basemark X: 4072