HTC One M8
HTC One M8Reuters

The much-anticipated flagship smartphone, HTC One M8 was simultaneously unveiled at London and New York City on Tuesday. The successor of HTC One, which won 'Best Smartphone of 2013' award at the recently concluded Mobile World Congress (MWC 2014) in Barcelona, too has received accolades from the critics, with some describing it as a winner, while some dubbed it as world's best smartphone.

Here is a roundup of HTC One M8 reviews by critics:

" is clear one of the most desirable Android handsets just got even better. There are negatives: the M8 can't compete with the LG Nexus 5 on price, while the Samsung Galaxy S5 has the better camera (despite all the hype about UltraPixel) and the LG G2 incorporates a bigger screen in a smaller, lighter body," wrote Gordon Kelly of Forbes

"I can comfortably say in (almost) every other way HTC is onto another winner," he added, describing the device as "arguably the classiest Android handset on the market with its luxurious design and build materials."

The device has received praises for its design as well as features.

"The HTC One M8 is an even better designed device that takes the principles of the original One, expands them in the right places and adds in some more HTC sauce here and there,"wrote Gareth Beavis of Techradar. "The result offers up something that can compete with Samsung on the technological front yet still stand toe-to-toe with Apple, arguably the producer of some of the best-looking devices of all time." 

"The HTC One M8 is the best Android phone the world has ever seen. Period. Full stop. Of this, there is no doubt. In many ways, in fact, it is the best smartphone the world has ever seen. From the design of the device to the power of its components and everything in between, HTC's new One better than its predecessor," Zach Epstein of BGR wrote. 

Everything about the HTC One M8 sounds good for now with most critics praising it unlike flagship smartphones from Apple Inc. and Samsung that received mixed reviews. Joanna Stern of the The Wall Street Journal is of the opinion that the device will win hearts, but may not be able to beat rivals, Samsung and Apple in sales.

"The HTC One M8 may not break a lot of new ground, but it's no step backward either. If design is important to you, it is the best Android phone you can buy," wrote Stern, adding, "In a fairy tale, the HTC One M8's charms would win the hearts of more phone buyers. But in the real world, the giants-Samsung and Apple-will probably once again win in sales." 

Even while bringing to light the possible weak points of HTC One M8, like compromises on its software and quality of images despite big promises, Chris Devies of Slash Gear heaped praises on the device.

"Nonetheless, the new One M8 is beautifully design and constructed, is fast and has a great display, uses one of the best manufacturer-customized interfaces we've seen in recent time, and delivers all that without demanding compromise on battery life," wrote Devies. 

HTC One M8 boasts of a metallic body (90 percent) and sports a 5.0-inch full HD (1920x1080p) Super LCD 3 screen having a pixel density of 440 ppi (pixels per inch) and is protected by Corning Gorilla Glass 3. Under the hoods, it has 2.3GHz Snapdragon 801 processor, Adreno 330 GPU, 2GB RAM, 16GB/32GB inbuilt storage (expandable up 128GB) and 2600 mAh Li-Polymer battery. It runs on Android v4.4.2 KitKat OS and features new HTC Sense v6.0 UI.

[READ: HTC One M8 Complete Specifications, Price and Availability]