Nokia Lumia 638
| Network | 2G 3G 4G | GSM 850 / 900 / 1800 / 1900 HSDPA 850 / 900 / 1900 / 2100 - RM-1010 LTE band 1800, 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
| Size | Dimensions Weight Display | 129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in) 136 gram IPS LCD capacitive touchscreen, 16M colors 480 x 854 pixels, 4.5 inches, 16:9 ratio (~218 ppi density) |
| Memory | Phonebook Call records Internal Card slot | Yes Yes 8 GB, 1 GB RAM microSD, up to 256 GB |
| Data | GPRS EDGE 3G WLAN Bluetooth Infrared port USB | Yes Yes HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps Wi-Fi 802.11 b/g/n, DLNA, hotspot v4.0 with A2DP, LE/ aptX after WP8 Denim update microUSB v2.0 |
| Features | OS CPU Messaging Alert Browser Radio GPS Games Camera Video Colors Java | Microsoft Windows Phone 8.1 Quad-core 1.2 GHz Cortex-A7 SMS, MMS, Email, Push Email, IM Vibration; MP3, WAV ringtones HTML5 FM radio A-GPS, GLONASS Yes 5 MP, 1/4", AF Yes Black - Loudspeaker - Micro-SIM - Multitouch - 3.5mm jack - Corning Gorilla Glass 3 (protection) - ClearBlack display - Active noise cancellation with dedicated mic - Accelerometer (sensor) - MP3/WAV/eAAC+/WMA player - MP4/H.264/WMV player - OneDrive (15 GB cloud storage) - Document viewer - Video/photo editor - Clock - Calendar - Alarm |
| Battery | Stand-by Talk time | Standard battery, Li-Ion 1830 mAh Up to Up to |
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