Here is a comparative analysis of Lumia 435 and Lumia 530 devices. Both the devices are almost similar with just a little difference:-
Both the devices share a common design elements that have become unanimous with the brand Lumia. Right from the bright colors to the removable back cover, they share a common look. They are also similar in port and button layout. Lumia 435 has physical dimensions of 118.1x64.7x11.7 mm, while Lumia 530's measures 119.7x62.3x11.7 mm. The 530 tilts the scales at 128 grams, but 435 is a bit on heavier side at 134 grams. 435 has a little squarish look while 530 sports rounded shape.
Screen elements remain almost same across both phones. Each of them has a 4 inch capacitive touchscreen. The resolution of 530 is slightly better at 480x854. On the other hand Lumia 435 has a 480x800 resolution. However, for the human eye, this does not make much of a difference.
Hardware and Software
Lumia 435 is powered by 1.2 GHz dual core Snapdragon 200 processor while Lumia 530 boasts of a quad core Snapdragon 200 processor clocking at the same 1.2 GHz. The RAM on 435 is an impressive 1 GB , while 530 offers only 512MB of RAM. The devices differ in terms of internal memory as well with 435 offering a 8 GB memory while 530 has just 4 GB of internal memory. Both have microSD card support upto 128 GB.
Both the devices run on Windows 8.1, with a little difference. 435 has version 8.1 out of the box while for 530 it is available as an update.
Thus is where confusion prevails. Lumia 435 has a 2 MP rear camera and a VGA front camera. On the other hand though Lumia 530 provides you an excellent 5 MP rear camera, the is no front camera available. Also 530 lacks flash.
You may have to need to make a choice here strongly on your requirements.
Battery and other features
435 carries a 1560 mAh removable battery while the battery capacity on 530 is 1430 mAh. Obviously you will get better battery life with 435. Both the phones have connectivity options like wifi, GPS, blur let ooh and microUSB while 530 lacks FM radio which is present on 435. The 435 has proximity, light, accelerometer, gyroscope sensors while 530 has the same set of sensors except gyroscope and light sensor.
In fact, Lumia 435 has dethroned Lumia 530 to become most affordable Windows Phone. It is available on Snapdragon at Rs. 4999 while the price tag for Lumia 530 reads Rs. 5395.
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