| Brand: | Nokia |
| Model: | Lumia 638 |
| Release Date: | 2014, December. Released 2014, December |
| Size: | 4.5 inches, 55.8 cm2 (~64.6% screen-to-body ratio) |
| Resolution: | 480 x 854 pixels, 16:9 ratio (~218 ppi density) |
| Technology: | IPS LCD |
| Protection: | Corning Gorilla Glass 3 |
| Main Specs: | 5 MP, 1/4.0", AF |
| Main Features: | Panorama |
| Main Video: | Yes |
| Capacity: | Li-Ion 1830 mAh, removable (BL-5H) |
| Type: | Li-Ion |
| Chipset: | Qualcomm Snapdragon 400 (28 nm) |
| Ram: | 1GB |
| Storage: | 8GB |
| Expandable: | microSDXC (dedicated slot) |
| Os Version: | 8.1 |
| Dimensions: | 129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in) |
| Weight: | 136 g (4.80 oz) |
| Wifi: | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Bluetooth: | 4.0, A2DP, LE/ aptX after WP8 Denim update |
| Nfc: | No |
| Usb: | microUSB 2.0 |
| Headphone Jack: | Yes |
| Network: | GSM / HSPA / LTE |
| Sensors: | Accelerometer |
| Colors: | Black |
