top Most-complete Nokia Lumia 638 4G Specs

92 Important Nokia Lumia 638 4G Specs

Main Camera
Avg. rating: (80%) (600 reviews)
Key Specs
Processing featuresquad-core 1.2GHz Qualcomm Snapdragon 400 (RAM: 1GB)
Display details854 x 480 4.5-inch screen
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
Focal Range10cm
Video CallSkype
Max Video Resolution1280 x 720 px
Video frames per second30
Display TypeIPS Wyatt screen (ClearBlack)
Color Mode16777216 colors
Multi-touch screen
Display Resolution854 x 480 px
Display size4.5 inches
Display's superficy8.62 square inches
Display's superficy (metric)218.95 square mm
Display dots per inch221 DPI
Display finishCorning Gorilla Glas 3
Display total pixels409920
Display featuresLumia color scheme, Wide viewing angle, Customizable home screen
Physical Features
Weight (grams)134 g
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
Downloadable Applicationsvia XBox Hub
Operating SystemWindows Phone OS 8.1 (with Lumia Cyan)
ProcessorQualcomm Snapdragon 400
CPU Cores4
Processor Speed1.2GHz
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.212 mAh/sqr in.
Talk minutes per Ah639 min./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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* We cannot guarantee that these specs are accurate. We urge you to do a confirmation of the key specs before making a final choice. Cell phone makers do not always detail all their phone's functions, making it difficult for us to guess whether or not a specific cell phone has a specific function. If you spot an inaccuracy in this list of features, please let us know as soon as possible.

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