Phone Comparison - Nokia Lumia 820 vs Nokia Lumia 625 vs Microsoft Lumia 640 LTE

general General Info

Manufacturer Nokia Nokia Microsoft
Announced Expected September 2012 July 2013 March 2015
Status Available - November 2012 Available - August 2013 Available - April 2015
Price - - Rs. 7,999 ($117.63) [Similarly Priced]
Colors Black, Gray, Red, Yellow, White, Blue, Violet Orange, Bright green, Yellow, Black and white Yes
Form Factor Candybar Candybar Candybar
Dimension 123.8 x 68.5 x 9.9 mm
(4.87 x 2.7 x 0.39 in)
133.2 x 72.2 x 9.2 mm
(5.24 x 2.84 x 0.36 in)
141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
Weight 160 g (5.64 oz) 159 g (5.61 oz) 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100 HSDPA HSDPA 850 / 900 / 2100
4G Network LTE 800 / 1800 / 2600 / 2100/ 900 LTE LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8 Microsoft Windows Phone 8 Microsoft Windows Phone 8.1 with Lumia Denim
Processor Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Dual-core 1.2 GHz Krait, Qualcomm MSM8930 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 225 Adreno 305 Adreno 305
RAM 1 GB 512 MB 1 GB
Internal Memory 8 GB storage 8 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 128 GB

display Display

Type AMOLED capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2 IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.3 inches 4.7 inches 5.0 inches
Resolution 480 x 800 pixels (217 ppi) 480 x 800 pixels (199 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 62.04% 65.05% 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No Yes FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels, Carl Zeiss Tessa 5 MP, 2592х1936 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging Auto focus, Touch focus, Landscape orientation, Auto and manual exposure, Auto and manual white balance, Active toolbar, Full screen viewfinder, Geotagging Auto focus, 1/4'' Sensor Size
Video Yes Yes, 1080p@30fps 1080p@30fps
Front Camera Yes [Similar] Yes, VGA [Similar] 1 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps
HSUPA, 5.76 Mbps
LTE, Cat3, 50 Mbps UL, 100 Mbps DL
HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v3.1 with A2DP, EDR Yes, v4.0 with A2DP, LE v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB storage, 1 GB RAM 8 GB, 512 MB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 GB microSD, up to 128 GB

Apps Sensors

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

battery Battery

Type Standard battery, Li-Ion Non-removable Li-Ion Battery Li-Ion Battery
Capacity 1650 mAh 2000 mAh 2500 mAh
Stand by Up to 330 h (2G)
Up to 330 h (3G)
Up to 552 h Up to 864 h (2G)
Up to 864 h (3G)
Talk Time Up to 14 h (2G)
Up to 8 h (3G)
Up to 23 h 54 min (2G)
Up to 15 h 12 min (3G)
Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)