Nokia Lumia 638 vs HTC Desire 820s dual sim

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          General Info

          Manufacturer
          Nokia HTC
          Announced
          December 2014 March 2015
          Status
          Available - December 2014 Available - March 2015
          Price
          Rs. 7,999 ($117.63) [Similarly Priced] Rs. 27,900 ($410.29) [Similarly Priced]
          Colors
          Black Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tu
          Form Factor
          Candybar Candybar
          Dimension
          129.5 x 66.7 x 9.2 mm
          (5.1 x 2.63 x 0.36 in)
          157.7 x 78.7 x 7.7 mm
          (6.21 x 3.1 x 0.3 in)
          Weight
          136 g (4.8 oz) 155 g (5.47 oz)
          2G Network
          GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
          TD-SCDMA 1900 / 2000
          3G Network
          HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
          4G Network
          LTE 1800 / 1900 / 2100 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600
          (Bands 1, 3, 7, 8, 38, 39, 40, 41)
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail

          Hardware and OS

          OS
          Microsoft Windows Phone 8.1 Android OS, v4.4.4 (KitKat)
          Processor
          Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 [Similar]
          GPU
          Adreno 305 [Similar] Mali-T760MP2 [Similar]
          RAM
          1 GB [Browse Similar] 2 GB [Browse Similar]
          Internal Memory
          8 GB 16 GB
          External Memory
          microSD, up to 128 GB microSD, up to 32 GB

          Display

          Type
          IPS LCD capacitive touchscreen, Corning Gorilla Glass 3, ClearBlack Display Capacitive Touchscreen, Corning Gorilla Glass 3
          Colors
          16M colors 16M colors
          Size
          4.5 inches [Similar] 5.5 inches [Similar]
          Resolution
          480 x 854 pixels (218 ppi) [Similar] 720 x 1280 pixels (267 ppi) [Similar]
          Screen-to-Body Ratio
          64.43% 67.20%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          5 MP, 2592 х 1944 pixels [Similar] 13 MP, 4160 x 3120 pixels [Similar]
          Flash
          No LED flash
          Features
          Auto focus, 1/4 Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
          Video
          Yes 1080p@30fps
          Front Camera
          No [Similar] 8 MP, 1080p [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack yes
          Radio
          FM radio FM radio
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
          Bluetooth
          v4.0, A2DP, LE/ apt-X after WP8 Denim update v4.0, A2DP
          Wi-Fi
          Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 b/g/n, hotspot
          USB
          microUSB v2.0 microUSB v2.0
          GPS
          Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
          Browser
          HTML5 HTML5

          User Memory

          Internal
          8 GB, 1 GB RAM 16 GB, 2 GB RAM
          Expandable Storage
          microSD, up to 128 GB microSD, up to 32 GB

          Sensors

          Fingerprint
          fingerprint not supported fingerprint not supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          NFC
          NFC not supported NFC not supported

          Battery

          Type
          Li-Ion Battery (BL-5H) Non-removable Li-Po Battery
          Capacity
          1830 mAh 2600 mAh
          Stand by
          - Up to 560 h (3G)
          Talk Time
          - Up to 12 h 10 min (3G)

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