Microsoft Lumia 640 XL LTE Dual SIM vs Xiaomi Redmi Note 4X
General Info
| Manufacturer | |
| Microsoft | Xiaomi |
| Announced | |
| March 2015 | February 2017 |
| Status | |
| Available - April 2015 | Available - February 2017 |
| Price | |
| Rs. 14,999 ($220.57) [Similarly Priced] | Rs. 12,750 ($180.00) [Similarly Priced] |
| Colors | |
| Matte cyan, Orange, Black, Matte white, Glossy white | Gold, Silver, Gray |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in) |
151 x 76 x 8.35 mm (5.94 x 2.99 x 0.33 in) |
| Weight | |
| 171 g (6.03 oz) | 175 g (6.17 oz) |
| SIM Type | |
| - | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) |
| 2G Network | |
| GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 |
| 4G Network | |
| LTE | LTE |
| Messaging | |
| SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
| Build Features | |
| - | - Fingerprint Sensor - Infrared Sensor |
| Notification LED | |
| - | Yes |
Display
| Type | |
| IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | IPS LCD Capacitive Touchscreen, Gorilla Glass Protection |
| Colors | |
| 16M colors | 16M colors |
| Size | |
| 5.7 inches [Similar] | 5.5 inches [Similar] |
| Resolution | |
| 720 x 1280 pixels (259 ppi) [Similar] | 1080 x 1920 pixels (401 ppi) [Similar] |
| Screen-to-Body Ratio | 68.88% | 72.50% |
| Multi-Touch | |
Hardware and OS
| OS | |
| Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v6.0.1 (Marshmallow) |
| User Interface | |
| - | MIUI 8 |
| Processor | |
| Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 [Similar] |
| GPU | |
| Adreno 305 [Similar] | Adreno 506 [Similar] |
| RAM | |
| 1 GB [Browse Similar] | 4 GB [Browse Similar] |
| Internal Memory | |
| 8 GB | 64 GB |
| External Memory | |
| microSD, up to 128 GB | microSD, up to 256 GB |
Camera
| Rear Camera | |
| 13 MP, 4128 x 3096 pixels [Similar] | 13 MP [Similar] |
| Flash | |
| LED Flash | Dual-LED (Dual Tone) |
| Features | |
| Carl Zeiss Optics, 1/3'' sensor size | Phase Detection Autofocus, f/2.0, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | |
| 1080p@30fps | 2160p@30fps, 1080p@30fps, 720p@120fps |
| Front Camera | |
| 5 MP, 1080p [Similar] | 5 MP, 1080p, f/2.0 [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 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE |
| Bluetooth | |
| v4.0, A2DP | Yes, v4.2 |
| Wi-Fi | |
| Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | |
| microUSB v2.0 | microUSB v2.0, USB On-The-Go |
| GPS | |
| Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS |
| Browser | |
| HTML5 | HTML5 |
User Memory
| Internal | |
| 8 GB, 1 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | |
| microSD, up to 128 GB | microSD, up to 256 GB |
| USB OTG | |
| - | Yes |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| NFC | |
Battery
| Type | |
| Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | |
| 3000 mAh | 4100 mAh |
| Stand by | |
| Up to 936 h (2G) Up to 936 h (3G) |
- |
| Talk Time | |
| Up to 31 h 20 min (2G) Up to 23 h 40 min (3G) |
- |