Most-complete Nokia Lumia 638 4G Specs

Main Camera
Key Specs
Processing featuresQualcomm Snapdragon 400 CPU times 4 cores at 1.2GHz on a RAM of 1GB
Display details221DPI 4.5-inch display with a resolution of 854 x 480 pixels
Release dateNov 30, 2014

Camera Details
Camera Resolution5-megapixel
Camera flashLED
Camera Options
  • Auto/Manual Exposure
  • Autu/Manual White Balance
  • Auto-web upload
  • Full-screen viewfinder
  • Geo-tagging
  • Landscape mode
  • Touch focus
  • Lumia dynamic picture
  • Lumia Options (Dynamic picture, Panorama, Re-focus, Self)
Camera Features
  • Autofocus
  • 1/4-inch sensor size
  • Lumia camera
Camera ApertureF/2.4
Digital Zoom4x
Focal Length28mm mm
Video CallSkype
Max Video Resolution1280 x 720 px
Video frames per second30
Display size4.5 inches
Display dots per inch221 DPI
Display TypeIPS Wyatt screen (ClearBlack)
Color Mode16777216 colors
Multi-touch screen
Display Resolution854 x 480 px
Display's superficy8.62 square inches
Display's superficy (metric)218.95 square mm
Display finishCorning Gorilla Glas 3
Display total pixels409920
Display featuresLumia color scheme, Wide viewing angle, Customizable home screen
Processing Power
Downloadable ApplicationsVia XBox Hub
Operating SystemWindows Phone OS 8.1 (with Lumia Cyan)
ProcessorQualcomm Snapdragon 400
CPU Cores4
Processor Speed1.2GHz
Physical Features
Weight (grams)134g
Thickness (metric)9.2 mm
Width (metric)66.7 mm
Height (metric)129.5 mm
Grams per cubic cm0.17 g/cu cm
Headset Jack3.5mm
Available colors
  • Black
  • White
  • Orange
  • Yellow
Base technology
  • GSM (850/900/1800/1900MHz)
  • WCDMA (850/1900/2100MHz)
  • TD-SCDMA (Bands 34/39)
  • TD-LTE (Bands 38/39/40/41)
  • FDD-LTE (Bands 3/7)
4G NetworksTD-LTE, FDD-LTE, LTE Cat 4
Maximum data rate150
Maximum uplink data rate50
SIM card typeMicro SIM
Wi-FiIEEE 802.11 b/g/n
Wi-Fi security modesEAP-TTLS / MSCHAPv2, WPA, WEP, EAP-AKA, PEAP-MSCHAPv2, WPA2 (AES / TKIP), WPA2-Enterprise, WPA2-Personal, EAP-TLS, WPA-Enterprise, EAP-SIM, WPA -Personal
Bluetooth Technology4.0
Bluetooth Profiles SupportedA2DP, AVCRP, GATT, HFP, OPP, PBAP
USB classMicroUSB v2.0
Mobile hotspot (up to 8 devices)
Audio Video Remote Control (AVRCP)
FM Transmitter
ConnectorsUSB 2.0
Storage Memory
Memory ExpansionMicroSD
Expansion LimitUp to 128GB
Battery Life
Stand-by Time480 hours (20 days)
Talk Time1170 minutes (19.5 hours)
3G Stand-by Time480 hours (20 days)
3G Talk Time1206 minutes (20.1 hours)
Battery Power1830mAh
mAh per gram14 mAh/g
mAh per mm thick199 mAh/mm of thickness
mAh per display square in.212mAh/sqrin.
Talk minutes per Ah639min./Ah
Battery voltage3.7
Music Playback Time3480 minutes (58 hours)
Browsing Time564 minutes (9.4 hours)
Video Playback Time420 minutes (7 hours)
Music / Multimedia
Audio file formatsG2, 3GP, AAC, AMR, ASF, M4A, MP3, MP4, WMA
Music featuresInternet Radio, Xbox Music, MixRadio
Voice SMS
General Specs
Special features7GB free Cloud storage
Other features
SensorsAccelerometer, SensorCore
PC data synchronization (via Exchange ActiveSync)
Business featuresCompany Hub, Lync, Office Applications
Security featuresDevice 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 FormatsMP4/H.264
Memo Book (via OneNote)
FOTA Capable
Special keysVolume key Power/Lock screen button
Included software
  • HERE car+
  • HERE Maps
  • HERE Bus
  • Adobe Reade
  • Excel
  • Word
  • PowerPoint
  • OneNote
  • OneDrive
  • Skype
Hearing Aid RatingM3/T3
Location servicesA-GLONASS, A-GPS, Cellular and Wi-Fi positioning
Eco featuresNon-PVC material, Recycled metal, Nickel-free surface, Free of BFR/rFR, 100& recyclable


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.

Nokia Lumia 638 4G Links:

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* Spec accuracy is not guaranteed. Please 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 spec sheet, please let us know as soon as possible.

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* Prices shown are only indicative. They were recently fetched by our system and may have changed meanwhile.


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