There are only a few days left before the world greets another calendar year -- and all the more we look forward to devices making their way to the marketplace. This year, we've heard rumors coming from all sides, from Apple to Samsung and everything in between. We'll soon be in position to mark which devices hit their expected release dates, which rumored specs came to reality and which ones are going to make it big and feed others dust.

Hence, we give you a rundown of all things smartphones; five of the most-anticipated and highly-buzzed handsets eyed by prospects and enthusiasts alike. Note that these models are not yet confirmed by their respective companies, but nevertheless, they've been 2014's talk of the town and hopefully, they see the light of day from the moment fireworks blow out.

LG G4

According to ValueWalk, the LG G3 is one of 2014's best smartphones, establishing a premise that naturally made followers expectant of a sequel. As the outlet puts it, the company has delivered "outstanding devices at very affordable prices" this year. At present, the LG G4 has been expected to launch sometime between Samsung and Apple's releases.

As we've previously written, the LG G4 was rumored to feature 4K Super AMOLED display, bezel-less architecture, sapphire / Corning's Gorilla Glass 4, 5.5- or 5.9-inch screen, water-resistance, 20.7 MP main camera, Qualcomm's Snapdragon 801, 802, 805, 808 or 810 processor, 32 GB / 64 GB storage options, 3 GB / 4 GB of RAM and Android 5.0 Lollipop support.

Sony Xperia Z4

This rumored QHD smartphone could come out early next year, wrote Pocket-lint. Its launch has been suggested to fall either in January's Consumer Electronics Show (Jan. 6 - 9) or March's Mobile World Congress (Mar. 2 - 5). Alleged specs include Qualcomm's Snapdragon 805 processor, 20.7 MP main camera (with OIS) and Android 5.0 Lollipop support.

However, from our earlier note, the device was said to come with a 27 MP main camera, 10 MP front snapper, Qi Wireless charging support, water-resistance, Qualcomm's Snapdragon 810 chip and 4 GB of RAM.

HTC One M9 / One M9 Prime

As described by PC Advisor, this speculated device "will be an extremely desirable handset." The source reported that the model may not arrive in the next MWC, contrary to the rumors we have earlier cited.

From our previous report, the One M9 has been speculated to pack a 5.5-inch, QHD screen, Qualcomm's Snapdragon 805 or 810, 3 GB of RAM, 3500mAh battery, 64 GB / 128 GB storage options, 16 MP main camera (with OIS) and Android 5.0 Lollipop support. An alleged "Prime" version has been cited by GSMArena.

Samsung Galaxy S6 / S6 Edge

Allegedly known within the company as "Project Zero," the Galaxy S6 could be Samsung's follow-up to the not-so-unfamiliar flop that is Galaxy S5. Phone Arena wrote that it is expected to be a big departure from the Korean tech giant's earlier models.

Rumored specs surrounding the S-line sequel include an all-metal body, foldable screen, 16 or 20 MP main camera, 5 MP front snapper, Sony's IMX240 camera sensor, two processor variants (Qualcomm's Snapdragon 810 and Exynos 7420 chip) and Android 5.0 Lollipop support. The device is expected to unveil itself at the next MWC.

Just like HTC's One M9, the Galaxy S6 was said to come in another form, dubbed as "Galaxy S6 Edge."

iPhone 6S / iPhone 7

Following Apple's 2014 spectacle in the form of iPhone 6 and 6 Plus, the Cupertino giant could be on the lookout for continued success, said Gotta Be Mobile. Since the company has kept the tradition of attaching -s to its flagships, we most certainly can't ditch the idea of an iPhone 6S -- unless Tim Cook and company slay the allegations once and for all.

Based on reports we've recently curated, the iPhone 6S has been suggested to look similar with current models. As usual, we're eyeing metal architecture and that "premium" iPhone feel unique to the series. Other referred specs include a 4-inch display (which could also apply to the iPhone 7), DLSR-ish camera, A9 processor and iOS 9 support.

The iPhone 6S is expected to launch next Spring, while the iPhone 7 is tipped for a September 2015 appearance.

Which smartphone are you most looking forward to see next year? Are you expecting something else other than the ones listed above? We'd love to hear your thoughts in the comments section.

In the meantime, check out Marques Brownlee's roundup of 2014's best smartphones below.