Microsoft Lumia 640 LTE
Platform
| GPU | Adreno 305 |
| CPU | Quad-core 1.2 GHz Cortex-A7 |
| Chipset | Qualcomm MSM8926 Snapdragon 400 (28 nm) |
| OS | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 |
Memory
eMMC 4.5 | |
| Internal | 8GB 1GB RAM |
| Card slot | microSDXC (dedicated slot) |
Main Camera
| Video | 1080p@30fps |
| Features | LED flash |
| Single | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF |
Selfie camera
| Video | 720p |
| Single | 1 MP |
Display
ClearBlack display | |
| Protection | Corning Gorilla Glass 3 |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~294 ppi density) |
| Size | 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) |
| Type | IPS LCD |
Body
| SIM | Micro-SIM |
| Weight | 145 g (5.11 oz) |
| Dimensions | 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
Battery
| Talk time | Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G) |
| Stand-by | Up to 864 h (2G) / Up to 864 h (3G) |
| Type | Li-Ion 2500 mAh, removable |
Sound
| 3.5mm jack | Yes |
| Loudspeaker | Yes |
Features
| Sensors | Accelerometer, proximity, compass |
Tests
| Battery life | |
| Audio quality | |
| Loudspeaker | |
| Camera | |
| Display |
Misc
| Price | About 120 EUR |
| Colors | Glossy cyan, Orange, White, Matte black |
Comms
| USB | microUSB 2.0 |
| Radio | FM radio |
| NFC | Yes |
| GPS | Yes, with A-GPS, GLONASS, BDS |
| Bluetooth | 4.0, A2DP |
| WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
Launch
| Status | Discontinued |
| Announced | 2015, March. Released 2015, April |
Network
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
1, 2, 4, 5, 7, 12, 17 - T-Mobile | |
| 4G bands | 1, 3, 7, 8, 20 |
HSDPA 850 / 1700(AWS) / 1900 / 2100 - T-Mobile | |
| 3G bands | HSDPA 850 / 900 / 2100 |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| Technology |