Lenovo K4 Note  Lenovo Vibe X2 
Lenovo K4 Note Lenovo Vibe X2
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Excellence Score
21.5
14.5
Value for Money Score
50.4
28.3
Price Rs. 14,999 onwards Rs. 11,999 onwards
Launch Date (India) Jan, 2016 Nov, 2014
Expected Launch Date N/A N/A
Smartphone OS Android 5.1, Upgradeable to 6.0 Android 4.4, Upgradeable to 5.0
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 5.5 inches 5 inches
Screen Resolution 1080x1920 pixels (~ 401 pixels per inch) 1080x1920 pixels (~ 441 pixels per inch)
Display Features IPS, Scratch Resistant (Gorilla Glass 3) IPS LCD
Full Physical QWERTY Keypad
Processor 1.3 GHz 2 GHz
Processor Type Octa Core Octa Core
Processor Name MediaTek MT6753 MediaTek MT6595m True8Core (Quad Cores 2GHz + Quad Cores 1.69 GHz)
GPU Mali T720-MP3 PowerVR G600
RAM 3 GB 2 GB
3G Yes Yes
4G Yes Yes
VoLTE Yes
WiFi Yes Yes
GPS Yes Yes
Bluetooth Yes Yes
USB Yes Yes
Camera 13.0 MP 13.0 MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) Yes (Full HD)
Other Camera Features Dual LED CCT Flash Geo-tagging, Touch Focus, Face Detection, Panorama, HDR, Beautification, Gesture and Voice Controls
Secondary Camera 5.0 MP 5.0 MP
Secondary Camera Features N/A Anti-distortion lens
Internal Memory 16 GB 32 GB
Expandable Memory Slot up to 128 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes Yes
Dual SIM GSM+GSM GSM+GSM
Thickness 9.1 mm 7.3 mm
Weight 160 gm 120 gm
Battery Capacity 3300 mAh 2300 mAh
Battery Standby 265 hrs 408 hrs
Battery Standby (3G) N/A 396 hrs
Battery Talktime 22.00 hrs 22.00 hrs
Battery Talktime (3G) N/A 11.50 hrs
Other Battery Parameters N/A Dual SIM Battery Life - Battery Standby (2G): 180 hrs, Battery Standby (3G): 204 hrs, Battery Standby (4G): 180 hrs, Battery Talktime (2G): 15.5 hrs, Battery Talktime (3G/4G): 11.00 hrs
Fingerprint sensor Yes
Other Features Twin Dolby-Atmos enabled speakers, Lenovo HD Audio, 3-mic system with wolfson codec support; TheaterMax Technology - Virtual Giant Cinematic Experience; NFC; Stereo Speakers; Noise Filtration; Games - Tap the Frog; SHAREit; SYNCit; SNAPit; CLONEit; Skype; Gamecentre; Guvera Music; Shazam; Route 66 Navi + Maps; Evernote; UC Browser Air Gestures; Instant On (instant access to your camera, contacts, and favorite apps from lock screen); Screen protective film, and phone case included; Contact points (on rear surface) for optional clip-on accessories (speaker, extended battery etc); FM receiver; Noise Filtration; Lenovo DOit Apps
2-minute Review [Positives]
  • Very good build quality
  • The metal frame is a nice touch, and enhances the overall design
  • Comfortable to hold, for a phone of this size
  • Very good display - offers vibrant color output, good sunlight legibility and good viewing angles
  • Lenovo's UI over Android is one of the better UI skins around
  • Good speed/performance in daily use (although gaming performance could have been better)
  • Good overall front and back cameras
  • Thanks to Dolby Atmos, Wolfson WM8281 audio codec and dual front-facing speakers, loudspeaker output is brilliant and clear even in full volume
  • Audio output through headphones is brilliant as well
  • Good fingerprint sensor
  • Good battery life
  • VR support
  • Very good build quality
  • Fun, lively design
  • Light-weight, and compact
  • Bright, vibrant, full HD display
  • Android interface with with the Vibe UI skin which is fast and offers lots of personalization options and custom apps
  • Blazing fast speed/performance, with excellent benchmark scores
  • Good video playback
  • Decent call quality
  • Three dots on the lower rear act as contacts for optional clip-on accessories (including speaker, extended battery)
  • 4G LTE support
  • Optional 2300mAh charging case available for the smartphone that lets you extend the battery life
2-minute Review [Negatives]

No Major Negatives!

  • Corners and edges tend to dig into the palms a little, and can make the phone somewhat uncomfortable to hold over long periods of time
  • Average loudspeaker
  • Average battery life
  • Average camera
Video Review
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  1. gsmarena.com in-depth Read Review »
  2. gadgets.ndtv.com in-depth Read Review »
  3. fonearena.com in-depth Read Review »
  4. digit.in in-depth Read Review »
  5. phonearena.com hands-on Read Review »
  6. timesofindia.indiatimes.com hands-on Read Review »
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