Xiaomi Mi4 64GB  Xiaomi Mi4i 32GB 
Xiaomi Mi4 64GB Xiaomi Mi4i
Buy Now N/A N/A
Excellence Score
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Value for Money Score
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Price N/A N/A
Launch Date (India) Feb, 2015 Jul, 2015
Expected Launch Date N/A N/A
Smartphone OS Android 4.4, Upgradeable to 6.0 Marshmallow Android 5.0 Lollipop
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 5 inches 5 inches
Screen Resolution 1080x1920 pixels (~ 441 pixels per inch) 1080x1920 pixels (~ 441 pixels per inch)
Display Features IPS LCD, Scratch Resistant (Corning Gorilla Glass 3), One Glass Solution JDI, IPS, Full Lamination OGS display, Scratch Resistant (Corning Gorilla Glass), All-new Sunlight display with hardware-level pixel contrast adjustments
Full Physical QWERTY Keypad
Processor 2.5 GHz 1.7 GHz
Processor Type Quad Core Octa Core
Processor Name Qualcomm MSM8974AC Snapdragon 801 Qualcomm Snapdragon 615 (2nd Generation)
GPU Adreno 330 Adreno 405
RAM 3 GB 2 GB
3G Yes Yes
4G Yes
VoLTE
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 (4K) Yes (Full HD)
Other Camera Features Sony Exmor RS Stacked Image Sensor, 6-element Lens, F/1.8 Aperture, Maximum Auto Focus time 0.3 seconds, Blue Glass Infrared Filter, Intelligent High Dynamic Flash, Real-time HDR, Panorama Mode, Burst Mode, Tracking Auto Focus, Magic Focus 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
Secondary Camera 8.0 MP 5.0 MP
Secondary Camera Features Exmor RS Back-Illuminated Image Sensor, 80 Degree Wide Angle 5-element Lens, F/1.8 Aperture, Next-gen Beauty app built-in, Full HD Video Recording 5-element Lens, F/1.8 Aperture, 80 degree wide angle lens, Beautify with 36 smart beauty profiles
Internal Memory 64 GB 32 GB
Expandable Memory Slot
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes Yes
Dual SIM GSM+GSM
Thickness 8.9 mm 7.8 mm
Weight 149 gm 130 gm
Battery Capacity 3080 mAh 3120 mAh
Battery Standby 280 hrs N/A
Battery Standby (3G) N/A N/A
Battery Talktime N/A N/A
Battery Talktime (3G) N/A 35.00 hrs
Fast Charging Yes, Quick Charge
Other Battery Parameters N/A Music Playback Time: 59 hrs, Video Playback Time: 11 hrs
Fingerprint sensor
Other Features USB On-The-Go; WiFi Direct; Infrared Port; WiFi Display; WiFi Dual Band; Noise Filtration 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
2-minute Review [Positives]
  • Excellent build quality
  • Rich choice of rear covers
  • Bright, vivid display, with good sunlight legibility
  • Sleek and friendly MIUI interface over Android
  • Blazing fast performance, backed by top-end hardware
  • Excellent for gaming
  • Excellent primary camera with great picture quality
  • 8 MP secondary camera is great for selfies
  • Solid battery life
  • 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
2-minute Review [Negatives]
  • Loudspeaker could have been louder
  • Tends to get a little warm when playing graphic intensive games
Video Review
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