Phone Comparison - Nokia Lumia 635 vs Nokia Lumia 735 vs Microsoft Lumia 640 Dual SIM

general General Info

Manufacturer Nokia Nokia Microsoft
Announced April 2014 September 2014 March 2015
Status Available - May 2014 Available - September 2014 Available - April 2015
Price - - Rs. 8,999 ($132.34) [Similarly Priced]
Colors Orange, Yellow, White, Black Orange, green, white, black Yes
Form Factor Candybar Candybar Candybar
Dimension 129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
134.7 x 68.5 x 8.9 mm
(5.3 x 2.7 x 0.35 in)
141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
Weight 134 g (4.73 oz) 134 g (4.73 oz) 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE 800 / 1800 / 2600 -
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM
Build Features - ClearBlack display -

hardware Hardware and OS

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

display Display

Type IPS LCD capacitive touchscreen AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.7 inches 5.0 inches
Resolution 480 x 854 pixels (218 ppi) 720 x 1280 pixels (312 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 64.43% 66.20% 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 х 1944 pixels 6.7 MP, Carl Zeiss optics 8 MP, 3264 x 2448 pixels
Flash No LED Flash LED flash
Features Geo-tagging 1/3.4'' sensor size, geo-tagging, face detection, panorama Auto focus, 1/4'' Sensor Size
Video Yes, 720p@30fps 1080p@30fps, stereo sound rec. 1080p@30fps
Front Camera No [Similar] 5 MP, 720p [Similar] 1 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Up to 296 kbps Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA 42.2/5.76 Mbps
Bluetooth Yes, v4.0 with A2DP v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi 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 8 GB, 512 MB RAM 8 GB, 1 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 64 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 not supported NFC supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery (BV-T5A) Li-Ion Battery
Capacity 1830 mAh 2200 mAh 2500 mAh
Stand by Up to 648 h Up to 600 h Up to 840 h (2G)
Up to 840 h (3G)
Talk Time Up to 12 h (2G)
Up to 14 h (3G)
Up to 22 h (2G)
Up to 17 h (3G)
Up to 27 h 30 min (2G)
Up to 20 h 30 min (3G)