Microsoft Lumia 640 LTE vs Xiaomi Mi 4i
General Info
| Manufacturer | |
| Microsoft | Xiaomi |
| Announced | |
| March 2015 | April 2015 |
| Status | |
| Available - April 2015 | Available - April 2015 |
| Price | |
| Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 8,999 ($132.34) [Similarly Priced] |
| Colors | |
| Yes | Black, White, Blue, Yellow, Pink |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
| Weight | |
| 145 g (5.11 oz) | 130 g (4.59 oz) |
| 2G Network | |
| GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | |
| LTE | LTE |
| Messaging | |
| SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
Display
| Type | |
| IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | IPS LCD capacitive touchscreen |
| Colors | |
| 16M colors | 16M colors |
| Size | |
| 5.0 inches [Similar] | 5.0 inches [Similar] |
| Resolution | |
| 720 x 1280 pixels (294 ppi) [Similar] | 1080 x 1920 pixels (441 ppi) [Similar] |
| Screen-to-Body Ratio | 67.43% | 71.57% |
| Multi-Touch | |
Hardware and OS
| OS | |
| Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v5.0 (Lollipop) |
| Processor | |
| Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 [Similar] |
| GPU | |
| Adreno 305 [Similar] | Adreno 405 [Similar] |
| RAM | |
| 1 GB [Browse Similar] | 2 GB [Browse Similar] |
| Internal Memory | |
| 8 GB | 16/32 GB |
| External Memory | |
| microSD, up to 128 GB | No |
Camera
| Rear Camera | |
| 8 MP, 3264 x 2448 pixels [Similar] | 13 MP, 4128 x 3096 pixels [Similar] |
| Flash | |
| LED flash | LED flash |
| Features | |
| Auto focus, 1/4'' Sensor Size | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR |
| Video | |
| 1080p@30fps | 1080p@30fps |
| Front Camera | |
| 1 MP, 720p [Similar] | 5 MP [Similar] |
Multimedia
| 3.5mm Jack | |
| Radio | |
| FM radio | FM radio |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Yes | Yes |
| Edge | |
| Yes | Yes |
| 3G | |
| HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE |
| Bluetooth | |
| v4.0, A2DP | v4.0, A2DP |
| Wi-Fi | |
| Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| USB | |
| microUSB v2.0 | microUSB v2.0 |
| GPS | |
| Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS |
| Browser | |
| HTML5 | HTML5 |
User Memory
| Internal | |
| 8 GB, 1 GB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | |
| microSD, up to 128 GB | No |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| NFC | |
Battery
| Type | |
| Li-Ion Battery | Li-Po Battery |
| Capacity | |
| 2500 mAh | 3120 mAh |
| Stand by | |
| Up to 864 h (2G) Up to 864 h (3G) |
- |
| Talk Time | |
| Up to 26 h 30 min (2G) Up to 17 h 30 min (3G) |
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