Compare Lumia-638 | N81-8GB
Lumia-638 VS N81-8GB COMPARE

Lumia-638 N81-8GB

General

Lumia-638 Nokia N81-8GB Nokia
Release Date not available not available
Sim Slots 1 1
Sim Size Micro Standard
Weight 136 g (4.80 oz)(g) 140 g(g)
Color Black Cocoa brown

Display

Touchscreen Yes No
Resolution 4.5 inches (~64.6% screen-to-body ratio) 240 x 320 pixels, 2.4 inches
Pixel Density 480 x 854 pixels (~218 ppi pixel density) Not Defined

Performance

Operating System Microsoft Windows Phone 8.1 Symbian OS 9.2, Series 60 v3.1 UI
Processor Quad-core 1.2 GHz Cortex-A7 Not Defined
Graphics Adreno 305 -- Touch-sensitive Navi wheel
Battery Li-Ion 1830 mAh battery (BL-5H) Standard battery, Li-Po 1050 mAh (BT-6MT)
Talk Time Up to 4 h (2G) / 3 h (3G)
Stand By Time Up to 410 h

Camera

Back Camera 5 MP, autofocus MP
Front Camera No MP No
Camera Flash No No
Camera Features 1/4" sensor size, geo-tagging, panorama

Storage

Internal Memory 8 GB MB
External Memory microSD, up to 128 GB MB No

Connectivity

GPRS Yes Yes Class 10 (4+1/3+2 slots), 32 - 48 kbps
GPS Yes With A-GPS, GLONASS No
Bluetooth Yes V4.0, A2DP, LE/ apt-X after WP8 Denim update Yes, v2.0 with A2DP
3G Yes HSDPA 850 / 900 / 1900 / 2100 - RM-1010 UMTS 2100
4G Yes No No

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