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Microsoft Lumia 640 vs Xiaomi Redmi 4
Compare Specification and Price of Microsoft Lumia 640 and Xiaomi Redmi 4
| Selected Mobiles |  Microsoft Lumia 640
Brand: Model: |
 Xiaomi Redmi 4
Brand: Model: |
Brand: Model: |
Brand: Model: |
| Price | Rs. 8,999/- | Not Available | ||
Pros and Cons
| Pros | Dual SIM Smartphone Runs on latest Windows 8.1 OS with direct Windows update privileges Immense Storage Capacity Good Rear Camera |
4G Volte Support FingerPrint Sensor Octa-core Processor |
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| Cons | Front camera has a poor resolution Under-stocked App Store missing alot of latest Apps |
Non-removable Battery Average RAM |
Overview
| Class | Smartphone | Smartphone | ||
| Status | Available | Available | ||
| SIM Type | Dual SIM | Dual SIM (Micro, Nano-Hybrid) | ||
| Colors Available | Glossy cyan, Orange, White, Matte Black | Gold, Dark Gray, Silver | ||
| Network | 2G Network: GSM 850/900/1800/1900 MHz 3G Network: WCDMA 850/900/1900/2100 MHz |
2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 3G Network: HSDPA 850 / 900 / 1900 / 2100 4G Network: LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
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| Browser | Chrome | HTML5 | ||
| Form Factor | Candy Bar | Candy Bar | ||
| In The Box | Handset, Nokia Stereo Headset, WH-108 Product user guide, Battery Charger | -- |
Processor & OS
| Operating System | Windows Phone 8.1 with Lumia Denim | Android OS, v6.0.1 (Marshmallow) | ||
| Processor | 1.2 GHz Quad core Qualcomm Snapdragon 400 Processor | Octa-core 1.4 GHz Cortex-A53 Qualcomm MSM8937 Snapdragon 430 Processor |
Physical Dimensions
| Dimension (HxWxD) | 141.3 x 72.2 x 8.8 mm | 141.3 x 69.6 x 8.9 mm | ||
| Weight | 145 g | 156 g |
Display
| Size | 5 inches (~294 ppi) | 5.0 Inches (~296 ppi) | ||
| Technology | Capacitive Multipoint-Touch | IPS LCD Capacitive Touchscreen | ||
| Resolution | HD, 1280 x 720 Pixels | 720 x 1280 Pixels | ||
| Colors | 16 M | 16M | ||
| Other Features | Sunlight readability enhancements, Corning Gorilla Glass 3, Easy to clean, Lumia Color profile | MultiTouch |
Memory
| Internal Memory & Storage | 8 GB | 16 GB | ||
| External Memory | microSD, Up to 128 GB | microSD, expandable upto 256 GB (SIM 2 slot) | ||
| RAM | 1 GB | 2 GB |
Battery
| Type | Li-Po 2500 mAh Battery | Non-removable Li-Po 4100 mAh battery | ||
| Talk Time | Upto 27.3 hours (2G) / Upto 20.3 hours (3G) | Up to 36 hours (3G) | ||
| Stand-by Time | Upto 35 days | Up to 432 hours (3G) | ||
| Video Playback | Upto 8.7 hours | -- | ||
| Audio Playback | Upto 86 hours | Up to 87 hours (3G) | ||
| Internet Use | Upto 10.9 hours (Wi-Fi) | -- |
Camera
| Primary Camera(Rear) | 8 MP with LED Flash | 13 MP with LED flash | ||
| Secondary Camera(Front) | 0.9 MP wide angle | 5 MP | ||
| Resolution | 3264 x 2448 pixels | 4128 x 3096 Pixels | ||
| Digital/Optical Zoom | 4x Optical Z | Digital Zoom | ||
| Video | Yes, 1080p | Yes, 1080p | ||
| Features | Rear Camera: Auto focus, LED flash, Backside-illuminated image sensor, Dynamic flash, Rich capture Front Camera: Still image capture, Video call, Video recording |
Auto Focus, Face detection, Touch to focus, Exposure compensation, ISO control, Continuos Shooting, High Dynamic Range mode (HDR) |
Data & Connectivity
| GPRS | Yes | Yes | ||
| EDGE | Yes | Yes | ||
| 3G | Yes | Yes, HSDPA 42.2 Mbps, HSUPA 5.76 Mbps | ||
| 4G | -- | Yes, LTE-A (2CA) Cat6 300/100 Mbps | ||
| Bluetooth | Yes, Bluetooth v4.0 with A2DP | Yes, 4.1, A2DP, LE | ||
| USB | Yes, micro USB v2.0 | Yes, microUSB 2.0 | ||
| Wi-Fi | Yes WLAN 802.11a/b/g/n/ac, DLNA, Hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, WiFi Direct, hotspot | ||
| GPS | Yes | Yes, with A-GPS, GLONASS, BDS |
Multimedia
| Music Player | Yes supports MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC | Yes, Supports MP3, WAV, eAAC+, FLAC | ||
| MP3 Ringtone | Yes | Yes | ||
| Poly Ringtone | Yes | Yes | ||
| LoudSpeaker | Yes | Yes | ||
| Video Player | Yes, SupportsH.263, H.264/AVC, MPEG-4, VC-1, Windows video | Yes, Supports DivX, Xvid, MP4, H.265 | ||
| Video recording | Yes, 1080p @ 30fps | Yes, 1080p @ 30fps |
Features
| Java | No | No | ||
| Messaging | SMS / MMS / Email / Push Mail / Instant Messaging | SMS / MMS / Email / Push Mail / Instant Messaging | ||
| Sensors | Ambient light sensor, Accelerometer, Proximity sensor, Magnetometer, SensorCore | Fingerprint Sensor, Light sensor, Accelerometer, Proximity sensor, Compass, Gyroscope | ||
| FM Radio | Yes | Yes | ||
| Document Viewer | Yes | Yes | ||
| Unique Features | Lumia Beamer, Lumia Storyteller, Play To DLNA app up to 30 GB Free Cloud Storage |
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| Additional Features | Double-tap to wake, Glance screen, Tactile feedback, Vibrating alerts, Voice commands, Word flow keyboard | -- |
Safety Tips for Buyers
- Never pay the Seller before receiving and verifying the device.
- Never scan any QR code or share OTP.
- Ask for bill, box, accessories etc to make sure its not a stolen device.
- Meet the Seller in a safe place preferably in daytime.
Safety Tips for Sellers
- Never handover the phone before receiving the full amount.
- Avoid Buyers from foreign countries.
- Beware of Buyers from other cities.
- Never share sensitive data of your bank account or credit card.
- Never scan any QR code or share OTP.
- Meet the Buyer in a safe place preferably in daytime.
- Make sure to delete all personal data from the phone before selling.
- Format the device or Reset to factory settings before selling.