Xiaomi Mi4i 16GB  Xiaomi Redmi 3S 
Xiaomi Mi4i Xiaomi Redmi 3S
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Excellence Score
20.6
21.0
Value for Money Score
56.6
70.0
Price Rs. 10,990 onwards Rs. 6,999 onwards
Launch Date (India) Apr, 2015 Aug, 2016
Expected Launch Date N/A N/A
Smartphone OS Android 5.0 Android 6.0, Upgradeable to 7.0
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 5 inches 5 inches
Screen Resolution 1080x1920 pixels (~ 441 pixels per inch) 720x1280 pixels (~ 294 pixels per inch)
Display Features JDI, IPS, Full Lamination OGS display, Scratch Resistant (Corning Gorilla Glass), All-new Sunlight display with hardware-level pixel contrast adjustments IPS LCD, Reading Mode
Full Physical QWERTY Keypad
Processor 1.7 GHz 1.4 GHz
Processor Type Octa Core Octa Core
Processor Name Qualcomm Snapdragon 615 (2nd Generation) Qualcomm Snapdragon 430
GPU Adreno 405 Adreno 505
RAM 2 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 5-element Lens, F/2.0 Aperture, Two-tone Flash, Supports Manual Mode, Real-time HDR, Magic Focus, Snap Pictures Using Sound Control, Burst Mode, Quick Exposure Adjustment, Night Image Stabilization, Beautify, Countdown Timer Phase Detection Auto-Focus, 12 Real-time Filters, Countdown Timer, Manual Mode, 5-piece Lens, F/2.0 Aperture
Secondary Camera 5.0 MP 5.0 MP
Secondary Camera Features 5-element Lens, F/1.8 Aperture, 80 degree wide angle lens, Beautify with 36 smart beauty profiles F/2.2 Aperture, Full HD Video Recording, Beautify, 36 Smart Beautify Profiles, Face Recognition
Internal Memory 16 GB 16 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 (Hybrid SIM slot)
Thickness 7.8 mm 8.5 mm
Weight 130 gm 144 gm
Battery Capacity 3120 mAh 4100 mAh
Battery Standby N/A N/A
Battery Standby (3G) N/A N/A
Battery Talktime N/A N/A
Battery Talktime (3G) 35.00 hrs N/A
Other Battery Parameters Music Playback Time: 59 hrs, Video Playback Time: 11 hrs Gaming: up to 15 hrs, Music Playback Time: up to 121 hrs, Reading Time: up to 39 hrs, Video Playback Time: up to 17 hrs
Fingerprint sensor
Other Features Quick Charge (Get up to 40% capacity with just 60 minutes of charging); WiFi Direct; WiFi Dual Band; WiFi Display; USB On-The-Go; Noise Filtration WiFi Display; WiFi Direct; Noise Filtration
2-minute Review [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
2-minute Review [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
Video Review
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