Comparison of Nokia Lumia 638 and Celkon A500 [S]ave
| Attribute |  Celkon A500 × |  Nokia Lumia 638 × |
|---|---|---|
| General | ||
| Brand | Celkon | Nokia |
| Launch | ||
| Announced | 2014-08-01 | 2014-12-01 |
| Body | ||
| Width (mm) | 10.2 | 9.2 |
| Length (mm) | 141.4 | 129.5 |
| Height (mm) | 72.6 | 66.7 |
| Weight (g) | 147 | 136 |
| SIM | Dual SIM | Micro-SIM |
| Network | ||
| Technology |
|
|
| 2G bands |
|
|
| 3G bands |
|
|
| 4G bands | - |
|
| Speed |
|
|
| Platform | ||
| OS | Android 4.4.2 (KitKat) | Microsoft Windows Phone 8.1 |
| Chipset | Mediatek MT6572M (28 nm) | Qualcomm Snapdragon 400 (28 nm) |
| CPU | Dual-core 1.3 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Mali-400 | Adreno 305 |
| Memory | ||
| Card slot | microSDHC | microSDXC (dedicated slot) |
| Internal |
|
|
| Display | ||
| Size (in) | 5 | 4.5 |
| Resolution (px) | 480 x 854 | 480 x 854 |
| Protection | - | Corning Gorilla Glass 3 |
| Display Type | TFT | IPS LCD |
| Battery | ||
| Type | Li-Ion | Li-Ion |
| Capcity (mAh) | 2000 | 1830 |
| Main Camera | ||
| Main Camera Type | Single | Single |
| Main Camera Properties |
|
|
| Main Camera Video | Yes | Yes |
| Main Camera Features | - | Panorama |
| Selfie Camera | ||
| Selfie Camera Type | Single | - |
| Selfie Camera Properties |
| - |
| Comms | ||
| WLAN | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Bluetooth | 2.0 | 4.0, A2DP, LE/ aptX after WP8 Denim update |
| GPS | + | + |
| NFC | - | - |
| Radio | FM radio | FM radio |
| USB | microUSB 2.0 | microUSB 2.0 |
| Sound | ||
| Loudspeaker | + | + |
| 3.5mm jack | + | + |
| Features | ||
| Sensors |
|
|
| Misc | ||
| Colors |
|
|
| SAR EU Head (W/kg) | 0.49 | 1.46 |
| SAR EU Body (W/kg) | 0.56 | 0.95 |
| Stand-by (h) | 150 | - |
| Talk time (h) | Up to 7 h (3G) | - |
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