Phone Comparison - Nokia Lumia 820 vs Nokia Lumia 1020 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 - July 2013 Available - April 2015
Price - - Rs. 7,999 ($117.63) [Similarly Priced]
Colors Black, Gray, Red, Yellow, White, Blue, Violet Black, White, Yellow 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)
130.4 x 71.4 x 10.4 mm
(5.13 x 2.81 x 0.41 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) 158 g (5.57 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 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE 800 / 1800 / 2600 / 2100/ 900 LTE 800 / 900 / 1800 / 2100 / 2600 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 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 225 Adreno 225 Adreno 305
RAM 1 GB 2 GB 1 GB
Internal Memory 8 GB storage 32 GB 8 GB
External Memory microSD, up to 32 GB No microSD, up to 128 GB

display Display

Type AMOLED capacitive touchscreen AMOLED capacitive touchscreen, PureMotion HD+ ClearBlack Display, Gorilla Glass 3 IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.3 inches 4.5 inches 5.0 inches
Resolution 480 x 800 pixels (217 ppi) 768 x 1280 pixels (332 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 62.04% 61.80% 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No Stereo FM radio with RDS 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 41 MP (38 MP effective, 7152 x 5368 pixels) 8 MP, 3264 x 2448 pixels
Flash LED flash Xenon Flash LED flash
Features Auto focus, Geo-tagging Carl Zeiss optics, Auto Focus, 1/1.2' Sensor Size, ND Filter, Optical Zoom, Geo-tagging, Face Detection, Optical Zoom, Panorama Auto focus, 1/4'' Sensor Size
Video Yes Yes, 1080p@30fps 1080p@30fps
Front Camera Yes [Similar] Yes, 1.2 MP, 720p [Similar] 1 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 107 kbps Yes
Edge Yes Up to 236.8 kbps 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, v3.0 with A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, DLNA, UPnP technology Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB storage, 1 GB RAM 32 GB, 2 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB No microSD, up to 128 GB
USB OTG - Supported -

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 supported NFC supported

battery Battery

Type Standard battery, Li-Ion Non-removable Li-Ion Battery, Wireless Charging Supported via Cover Li-Ion Battery
Capacity 1650 mAh 2000 mAh 2500 mAh
Stand by Up to 330 h (2G)
Up to 330 h (3G)
Up to 384 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 19 h 6 min (2G)
Up to 13 h 18 min (3G)
Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)