Nokia Lumia 638
Platform
| GPU | Adreno 305 |
| CPU | Quad-core 1.2 GHz Cortex-A7 |
| Chipset | Qualcomm Snapdragon 400 (28 nm) |
| OS | Microsoft Windows Phone 8.1 |
Memory
eMMC 4.5 | |
| Internal | 8GB 1GB RAM |
| Card slot | microSDXC (dedicated slot) |
Main Camera
| Video | Yes |
| Features | Panorama |
| Single | 5 MP, 1/4.0", AF |
Selfie camera
No |
Display
ClearBlack display | |
| Protection | Corning Gorilla Glass 3 |
| Resolution | 480 x 854 pixels, 16:9 ratio (~218 ppi density) |
| Size | 4.5 inches, 55.8 cm2 (~64.6% screen-to-body ratio) |
| Type | IPS LCD |
Body
| SIM | Micro-SIM |
| Weight | 136 g (4.80 oz) |
| Dimensions | 129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in) |
Battery
| Type | Li-Ion 1830 mAh, removable (BL-5H) |
Sound
| 3.5mm jack | Yes |
| Loudspeaker | Yes |
Features
| Sensors | Accelerometer |
Misc
| Price | About 100 EUR |
| SAR EU | 1.46 W/kg (head) 0.95 W/kg (body) |
| Colors | Black |
Comms
| USB | microUSB 2.0 |
| Radio | FM radio |
| NFC | No |
| GPS | Yes, with A-GPS, GLONASS |
| Bluetooth | 4.0, A2DP, LE/ aptX after WP8 Denim update |
| WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
Launch
| Status | Discontinued |
| Announced | 2014, December. Released 2014, December |
Network
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| 4G bands | 3, 7, 38, 39, 40, 41 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 - RM-1010 |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| Technology |