Lenovo K4 Note  Lenovo Vibe S1 
Lenovo K4 Note Lenovo Vibe S1
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Excellence Score
21.5
22.5
Value for Money Score
54.1
50.6
Price Rs. 12,799 onwards Rs. 15,999 onwards
Launch Date (India) Jan, 2016 Nov, 2015
Expected Launch Date N/A N/A
Smartphone OS Android 5.1, Upgradeable to 6.0 Android 5.0, Upgradeable to 6.0
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, Scratch Resistant (Corning Gorilla Glass 3)
Full Physical QWERTY Keypad
Processor 1.3 GHz 1.7 GHz
Processor Type Octa Core Octa Core
Processor Name MediaTek MT6753 MediaTek MT6752
GPU Mali T720-MP3 Mali-T760MP2
RAM 3 GB 3 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 Phase Detection Auto-Focus, Dual-LED (dual tone) Flash, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama, BSI Sensor
Secondary Camera 5.0 MP 8.0 MP
Secondary Camera Features N/A Dual Secondary Cameras (8 MP + 2 MP), BSI Sensor
Internal Memory 16 GB 32 GB
Expandable Memory Slot up to 128 GB 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 (Hybrid SIM slot)
Thickness 9.1 mm 7.8 mm
Weight 160 gm 132 gm
Battery Capacity 3300 mAh 2420 mAh
Battery Standby 265 hrs 264 hrs
Battery Standby (3G) N/A 240 hrs
Battery Talktime 22.00 hrs 26.00 hrs
Battery Talktime (3G) N/A 12.00 hrs
Other Battery Parameters N/A Battery Standby (4G): 240 hrs, Battery Talktime (4G): 12 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 WiFi Direct; WiFi Dual Band; Noise Filtration; Games - Tap the Frog, Asphalt 8, Green Farm 3, Real Football 2015, Spiderman Ultimate Power; Evernote; Kingsoft Office; Guvera Music; Route 66 Navi + Maps; UC Browser; SHAREit; SYNCit
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
  • Beautiful, premium design - easily amongst the best-looking phones in this segment
  • Outstanding ergonomics - sleek design, curved back and very lightweight
  • Excellent in-hand feel
  • Decent display
  • Lenovo's Vibe UI on top of Android
  • Good speed/performance
  • Very good rear camera
  • Dual front camera with nifty inbuilt features
2-minute Review [Negatives]

No Major Negatives!

  • Average battery life
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. telecom.economictimes.indiatimes.com in-depth Read Review »
  6. indianexpress.com hands-on Read Review »
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