Nokia Lumia 638
| Device name | Nokia Lumia 638 |
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| Release date | 2014, December |
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| Dimensions | |
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| Height | 129.5 mm |
| Width | 66.7 mm |
| Thickness | 9.2 mm |
| Weight | 136 g |
| Sim | {"type":"Micro-SIM"} |
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| Display | |
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| Size | 4.5 inches |
| Screen to body ratio | ~64.6% |
| Resolution | 480 x 854 pixels |
| Aspect ratio | 16:9 |
| Ppi density | ~218 ppi |
| Protection | Corning Gorilla Glass 3 |
| Features | |||
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| Sensors |
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| Platform | |
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| Os | Microsoft Windows Phone 8.1 |
| Chipset | Qualcomm Snapdragon 400 (28 nm) |
| Cpu | Quad-core 1.2 GHz Cortex-A7 |
| Gpu | Adreno 305 |
| Memory | |||||||
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| Card slot |
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| Internal storage |
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| Storage type | EMMC 4.5 | ||||||
| Main camera | |||||||
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| Single camera |
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| Video | Yes | ||||||
| Selfie camera | |||
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| No camera |
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| Sound | |
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| Loudspeaker | Yes |
| 3.5mm jack | Yes |
| Comms | |
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| Wlan | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Bluetooth | 4.0, A2DP, LE/aptX (after WP8 Denim update) |
| Positioning | GPS, GLONASS |
| Nfc | No |
| Radio | FM radio |
| Usb | MicroUSB 2.0 |
| Battery | |
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| Type | Li-Ion 1830 mAh, removable (BL-5H) |
| Colors | Black |
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| Sar eu | |
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| Head | 1.46 W/kg |
| Body | 0.95 W/kg |
| Status | Discontinued |
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