| Key Specs | |
|---|---|
| Release date | Nov 30, 2014 |
| Camera Details | |
| Camera Resolution | 5-megapixel |
| Camera flash | LED |
| Camera Options |
|
| Camera Features |
|
| Camera Aperture | F/2.4 |
| Digital Zoom | 4x |
| Focal Length | 28mm mm |
| Video Call | Skype |
| Max Video Resolution | 1280 x 720 px |
| Video frames per second | 30 |
| Display | |
| Display size | 4.5 inches |
| Display dots per inch | 221 DPI |
| Display Type | IPS Wyatt screen (ClearBlack) |
| Color Mode | 16777216 colors |
| Multi-touch screen |  |
| Touch-Screen | Capacitive |
| Display Resolution | 854 x 480 px |
| Display's superficy | 8.62 square inches |
| Display's superficy (metric) | 218.95 square mm |
| Display finish | Corning Gorilla Glas 3 |
| Display total pixels | 409920 |
| Display features | Lumia color scheme, Wide viewing angle, Customizable home screen |
| Processing Power | |
| Downloadable Applications | Via XBox Hub |
| Operating System | Windows Phone OS 8.1 (with Lumia Cyan) |
| Processor | Qualcomm Snapdragon 400 |
| CPU Cores | 4 |
| Processor Speed | 1.2GHz |
| RAM | 1GB |
| Physical Features | |
| Weight (grams) | 134g |
| Thickness (metric) | 9.2 mm |
| Width (metric) | 66.7 mm |
| Height (metric) | 129.5 mm |
| Grams per cubic cm | 0.17 g/cu cm |
| Headset Jack | 3.5mm |
| Available colors |
|
| Eco-declaration | |
| Connectivity | |
| Base technology |
|
| 3G Networks | WCDMA, TD-SCDMA |
| 4G Networks | TD-LTE, FDD-LTE, LTE Cat 4 |
| Maximum data rate | 150 |
| Maximum uplink data rate | 50 |
| SIM card type | Micro SIM |
| Wi-Fi | IEEE 802.11 b/g/n |
| Wi-Fi security modes | EAP-TTLS / MSCHAPv2, WPA, WEP, EAP-AKA, PEAP-MSCHAPv2, WPA2 (AES / TKIP), WPA2-Enterprise, WPA2-Personal, EAP-TLS, WPA-Enterprise, EAP-SIM, WPA -Personal |
| Bluetooth Technology | 4.0 |
| Bluetooth Profiles Supported | A2DP, AVCRP, GATT, HFP, OPP, PBAP |
| Miracast | |
| DLNA | |
| USB class | MicroUSB v2.0 |
| Mobile hotspot | (up to 8 devices) |
| A2DP | |
| Audio Video Remote Control (AVRCP) | |
| FM Transmitter | |
| Connectors | USB 2.0 |
| Storage Memory | |
| Memory | 8GB |
| Memory Expansion | MicroSD |
| Expansion Limit | Up to 128GB |
| Battery Life | |
| Stand-by Time | 480hours |
| Talk Time | 1170minutes |
| 3G Stand-by Time | 480hours |
| 3G Talk Time | 1206minutes |
| Battery Power | 1830mAh |
| mAh per gram | 14 mAh/g |
| mAh per mm thick | 199 mAh/mm of thickness |
| mAh per display square in. | 212mAh/sqrin. |
| Talk minutes per Ah | 639min./Ah |
| Battery voltage | 3.7 |
| Music Playback Time | 3480minutes |
| Browsing Time | 564minutes |
| Video Playback Time | 420minutes |
| Music / Multimedia | |
| Audio file formats | G2, 3GP, AAC, AMR, ASF, M4A, MP3, MP4, WMA |
| Music features | Internet Radio, Xbox Music, MixRadio |
| Messaging | |
| Voice SMS | |
| General Specs | |
| Special features | 7GB free Cloud storage |
| SyncML | |
| Other features | |
| Sensors | Accelerometer, SensorCore |
| PC data synchronization | (via Exchange ActiveSync) |
| Business features | Company Hub, Lync, Office Applications |
| Security features | Device lock, PIN code, device lock password, conventional signed firmware updates via the Internet tracking and protection, application certification, the application sandbox, backup and restore via the Internet, the browser integrated anti-phishing features, via Internet functions (Locking devices remotely, Remotely wipe device data), Secure boot, has signed an operating system, Mobile VPN, remote lock and wipe, hardware-accelerated device encryption, mobile device management, remote security policy enhancements |
| Video Formats | MP4/H.264 |
| Memo Book | (via OneNote) |
| FOTA Capable | |
| Special keys | Volume key Power/Lock screen button |
| Included software |
|
| Hearing Aid Rating | M3/T3 |
| Games | (::0::) |
| Location services | A-GLONASS, A-GPS, Cellular and Wi-Fi positioning |
| Eco features | Non-PVC material, Recycled metal, Nickel-free surface, Free of BFR/rFR, 100& recyclable |
Description:
The 638 4G is an Asia-based Lumia model, entering the basic smartphone department with Enterprise-level security perks and Smart WIFI (which finds and connects you directly to the nearest Wi-Fi hotspot) among the perks of its specs. This 4.5-inch Windows phone runs on a 1.2GHz quad-core processor with a 1GB RAM to match. Storage-wise, it packs an 8GB native storage, which you can expand to up to 128GB with a microSD card. It has 7GB worth of free Cloud storage as well -- a common perk among Nokia smartphones. Powering it up is a 1830mAh battery.
Also known as Nokia 638 4G.
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* Specifications cannot be guaranteed accurate. Do a confirmation of the key specs before making a final choice. Cell phone manufacturers sometimes omit certain functions, making it difficult for us to guess whether or not a specific cell phone has a specific function. If you see an error in this description, please let us know as soon as possible.
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