Excerpt: The Lumia 630 and Lumia 635 were announced by Nokia during the Microsoft Build 2014 keynote. These two smartphones were among the first in the world to come with Windows Phone 8.1 and the Lumia Cyan firmware out of the box.
Summary: The Nokia Lumia 635 is a slight update to an already well-rounded budget blower that brings 4G powers to the table and a slicker, glossy body too. Even though Windows 8.1 packs in many features we've been craving for ages, it's still playing catch-up with the big boys of the phone world.
Summary: In the end, the only thing you can judge the Lumia 635 by is whether it reliably delivers on the things it promises and the market it’s aimed at. The Lumia 635 is a decent smartphone for users who aren’t too demanding, with the only real downsides being its rear-facing camera’s lack of flash and...
Conclusion: The Nokia Lumia 635 may not have all the latest hardware or the most attractive design, but it certainly works well. It’s proof that smartphones don’t have to be all-powerful to get the job done.
Pros: Great, low price, Cortana helps get things done, Comfortable to hold
Cons: Boring design, Low-resolution screen, No front-facing camera, Poor battery life on LTE
Summary: With its fun design and cheap price, the Lumia 635 is a decent option to consider if you're after 4G LTE on a budget. It's only marginally more expensive than its near-identical 3G-only Lumia 630 sibling, so you should certainly opt for the 635.
Pros: The Nokia Lumia 635 has an affordable price, its interchangeable cases are colourful and attractive and it has 4G LTE.
Cons: Adding 4G LTE has meant the battery life has taken a hit, its screen resolution is unimpressive and its camera isn't really up to anything more than the odd Instagram snap.
Pros: Very accessible price for 4G LTE networking and a fresh OS. Windows Phone updated to include Cortana, better notifications, and tighter integration with Microsoft cloud services. Colorful interchangeable covers, solid body. Support for up to 128GB of storage.
Cons: Lacks a selfie camera, and rear-facing camera is not what you would expect from a Nokia. This is probably a phone more dedicated to social players than photo maniacs. Display is disappointing too.
Summary: No, you don't get a front camera or flash on the back, but the $168 Nokia Lumia 635 is a solid choice for the price. This Windows Phone delivers smooth performance, long battery life and a surprisingly lovely display.