Phone Comparison - Samsung Ativ S vs Microsoft Lumia 640 Dual SIM vs Microsoft Lumia 640 LTE

general General Info

Manufacturer Samsung Microsoft Microsoft
Announced August 2012 March 2015 March 2015
Status Released - December 2012 Available - April 2015 Available - April 2015
Price - Rs. 8,999 ($132.34) [Similarly Priced] Rs. 7,999 ($117.63) [Similarly Priced]
Colors Gray Yes Yes
Form Factor Candybar Candybar Candybar
Dimension 137.2 x 70.5 x 8.7 mm
(5.4 x 2.78 x 0.34 in)
141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
Weight 135 g (4.76 oz) 145 g (5.11 oz) 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network - - 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 8.1 with Lumia Denim Microsoft Windows Phone 8.1 with Lumia Denim
Processor Dual-core Krait 1.5 GHz, Qualcomm MSM8960 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 225 Adreno 305 Adreno 305
RAM 1 GB 1 GB 1 GB
Internal Memory 16/32 GB storage 8 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 128 GB microSD, up to 128 GB

display Display

Type Super AMOLED capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.8 inches 5.0 inches 5.0 inches
Resolution 720 x 1280 pixels (306 ppi) 720 x 1280 pixels (294 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 65.65% 67.43% 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS FM radio FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 8 MP, 3264 x 2448 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Image Stabilization Auto focus, 1/4'' Sensor Size Auto focus, 1/4'' Sensor Size
Video Yes, 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera Yes, 1.9 MP [Similar] 1 MP, 720p [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 HSPA 42.2/5.76 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v3.0 with A2DP v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16/32 GB storage, 1 GB RAM 8 GB, 1 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 128 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 Li-Ion Battery Li-Ion Battery
Capacity 2300 mAh 2500 mAh 2500 mAh
Stand by Up to 168 h (2G)
Up to 218 h (3G)
Up to 840 h (2G)
Up to 840 h (3G)
Up to 864 h (2G)
Up to 864 h (3G)
Talk Time Up to 8 h (2G)
Up to 14 h 50 min (3G)
Up to 27 h 30 min (2G)
Up to 20 h 30 min (3G)
Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)