Xiaomi Mi4i 16GB Xiaomi Redmi 3S 
Xiaomi Mi4i 16GBXiaomi Redmi 3S
magic score<5066.3
PriceRs. 11,999 onwardsRs. 6,999 onwards
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Launch Date (India)Apr, 2015Aug, 2016
Smartphone OSAndroid 5.0Android 6.0, Expected upgrade to 7.0
Screen Resolution1080x1920 pixels (~ 441 pixels per inch)720x1280 pixels (~ 294 pixels per inch)
Display FeaturesJDI, IPS, Full Lamination OGS display, Scratch Resistant (Corning Gorilla Glass), All-new Sunlight display with hardware-level pixel contrast adjustmentsIPS LCD, Reading Mode
Processor1.7 GHz1.4 GHz
Processor NameQualcomm Snapdragon 615 (2nd Generation)Qualcomm Snapdragon 430
GPUAdreno 405Adreno 505
VoLTEYes
Expandable Memory Slotup to 128 GB
Dual SIMGSM+GSMGSM+GSM (Hybrid SIM slot)
Thickness7.8 mm8.5 mm
Weight130 gm144 gm
Battery Capacity3120 mAh4100 mAh
Battery Talktime (3G)35.00 hrsN/A
Other Battery ParametersMusic Playback Time: 59 hrs, Video Playback Time: 11 hrsGaming: up to 15 hrs, Music Playback Time: up to 121 hrs, Reading Time: up to 39 hrs, Video Playback Time: up to 17 hrs
Editor's Note [Positives]
  • Premium build quality
  • Pleasant, unibody design, with high-quality polycarbonate body
  • Ergonomic design, and excellent display-to-body ratio - very comfortable to use with one hand
  • Brilliant, class-leading display - accurate color reproduction, great viewing angles, excellent sunlight legibility
  • MIUI skin over Android interface has a flat design, smooth transition effects, and good multitasking and notifications interface
  • Very good speed/performance backed by Qualcomm's new 64-bit octa-core Snapdragon processor
  • Excellent camera, specially under well lit conditions
  • Decent loudspeaker
  • Good audio quality
  • Good call quality
  • Good battery life
  • Compact, smart looking, premium design with a metal build - very similar to the Redmi Note 3, but more easy to handle (because of the smaller size)
  • Excellent ergonomics, with the curves on the back making the phone very comfortable to hold
  • Light-weight with an excellent weight distribution, despite the large battery it holds inside
  • Nice, vibrant, and bright display, with excellent touch-responsiveness, and good viewing angles
  • MIUI is a one of the better Android skins around
  • Good speed/performance (though multi-tasking performance is a notch below the Redmi 3s Prime because of lesser RAM)
  • Decent camera
  • Excellent battery life - easily lasts a day and a half in regular use
  • Fast, accurate fingerprint sensor
  • Good audio quality
Editor's Note [Negatives]
  • Tends to get a little warm when playing graphic intensive games
  • Camera is decent, and almost at par with the more expensive Redmi Note 3, but still could have been better, especially with low light performance
  • Loudspeaker volume could have been better
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