Starts at $89.99 off-contract.
Ranked in these QuestionsQuestion Ranking
Pro Smooth performance
Lumia 635 runs Windows Phone 8.1 and has a quad-core 1.2GHz Qualcomm processor, 512 MB of RAM and Adreno 305 GPU.
Since the introduction of the Windows Phone 7, devices run smoothly on hardware that on paper should prove problematic. The Lumia 635 continues that trend with smooth navigation. Its lower spec processor is only evident in processor intensive situations such as loading or downloading applications.
Pro Excellentbattery life
The Lumia 635 uses a 1830 mAh battery and according to Phonearena will drain in about 9½ hours of typical use. With its modest specs the Lumia 635 manages great battery life. It also includes a highly effective battery saver option.
Pro Decent 5 megapixel camera
635's image quality is good for the class and the included software allows squeezing out all possible image quality with manual controls.
Pro Bright design and solid build quality
The 635 can only be purchased in black or white but is available with replaceable shells that come in black, white, orange, green, and yellow. Despite the removable backs and the low price of the 635 still feels like a phone that will hold up to the abuse of daily life.
Pro 8GB internal storage with MicroSD card slot
The MicroSD card slot supports up to 128GB of storage.
Con Loading screens are common due to only 512 MB of RAM
The 635 encounters loading screens quite often when opening applications or multitasking due to its less capable processor and low amount of RAM.
Con Subpar 4.5" 854x480 LCD display
Pixels are somewhat visible on the 635 with a PPI of only 221. The 635 also does not feature extreme touchscreen sensitivity for using gloves like the Lumia 520. Fortunately Nokia's ClearBlack technology that improves outdoor readability is included. The display is also protected by Gorilla Glass 3.
Con Poor app ecosystem
Compared to its Android alternatives it lacks both quantity and quality of apps.
Con No camera shutter button
One of the Lumia 635's omissions to keep the price down is the long standing common attribute of Windows Phone devices - the camera button.