Shopping for a new smartphone is an exciting and arduous experience. It  holds the promise of something better and the fear of a two-year  commitment. For gadget enthusiasts, it also involves pouring over specs  and reviews, and fretting over what's coming out in the near-term. As we  publish this buyer's guide, we face potential upheavals in the mobile  space. Samsung's Galaxy S II lineup will arrive at three major US carriers, the next iPhone perpetually looms in the distance,  and a new generation of Windows Phone handsets is close upon us. You  might ask, "Why would anyone buy a smartphone today, when something  better is coming tomorrow?" Friends, that's the blessing and curse of  the mobile world -- there's always something better coming. You can't  wait forever, though, and if you want to purchase a smartphone today,  we're here to make the process easier and help you make an informed  decision.
While our choices are sometimes contentious, they're backed with  experience that you can rely upon. If you're looking to make a quick  decision without much effort, you can rest assured that our selections  won't steer you wrong. Still, we encourage you to educate yourself  before you decide on a smartphone that best fits your needs. Our Primed  series is an excellent place to start, where you can learn about dual-core processors and mobile displays.  As always, you're encouraged to share your own experience in the  comments, and we hope you have fun listing your own favorites, too. Just  remember that we have an $80 ceiling for our budget selections.  Compared to our previous buyer's guide,  Samsung has begun to lose ground, and while Android maintains  dominance, it's found some unexpected competition. Curious to see how it  played out? Read on, as we round up the best smartphones of the day. 
AT&T
Okay, we know what you're thinking: again? Let's just say the race for supremacy between the iPhone 4 and the Atrix 4G ($100) is at a fevered pitch. Motorola's option has received vast improvements since its launch, first with an update to enable HSUPA, and more recently with its migration to Gingerbread (which enabled sideloading  support). If you're fundamentally opposed to buying anything from  Apple, go with the Atrix 4G. It's a solid contender with a speedy  dual-core 1GHz Tegra 2 SoC and an excellent qHD display. From our  experience, however, this Moto can't match the battery life, quality  camera and beautiful Retina Display on the iPhone 4. We're incredibly  curious to see what Apple has up its sleeve, and the Galaxy S II  seems like it'll be a stunner, but for the time being, Cupertino's  current offering remains the best, most well-rounded solution on Ma  Bell.
If a keyboard is what you're after...

We're admittedly a bit chagrined by AT&T's selection of QWERTY handsets, but the Torch 9810  ($50) is certainly the pick of the bunch -- given what we have to work  with. Interestingly, the network offers a wide array of options for  keyboard lovers across smartphone platforms, including the Quantum ($50), Status ($50) and Veer 4G  ($0.01), but none of these choices are anything to write home about. In  that respect, the updated Torch -- which features a 1.2GHz CPU, 768MB  of RAM and a decently high-res 3.2-inch display -- is a bit of fresh air  (even though BlackBerry 7 OS comes across as a bit stale). As you might  expect, the 9810 provides excellent battery life, solid voice clarity  and a top-notch keyboard. And as it turns out, the little guy takes  pretty good photos, too.
If you're looking to squeeze every penny...
The Focus  is one of the best Windows Phone devices on the market today, and its  $50 price tag makes it a solid choice for the budget selection on  AT&T. While the 1GHz Scorpion CPU and Adreno 200 graphics are  beginning to show their age, it remains a respectable performer with an  excellent display and quality camera. It compares very similarly with  the Captivate,  which has a 1GHz Hummingbird CPU (and also retails for $50), but an  important distinction can be drawn between the two. While AT&T has disabled HSUPA in both devices, this cheap blow is incredibly easy  to reverse on the Focus. If you want to run Android and are undeterred  by poor upload speeds (or don't mind rooting your phone), the Captivate  is definitely a viable option, but for this reason, the Windows Phone is  our favorite of the two.
Sprint
You've read the reviews, and it should come as no surprise that the Photon 4G  is currently our favorite phone on Sprint. Frankly, it's among the very  best of smartphones on the market today. Unless you're enamored with  the "3D effect" of the EVO 3D  ($200), there's no reason to consider the HTC alternative. And no,  we're not being too harsh. The Photon 4G features a vastly superior  display, better camera, impressive battery life and nearly matches  blistering speed of the EVO 3D. We're particularly thrilled with its  world phone capability, which offers broad support for GSM / HSPA  networks and allows you to use SIMs from your carriers of choice while  abroad. Admittedly, we expect the Epic 4G Touch  to become the new king upon its September 16th arrival, but the Photon  4G is a true delight -- and best of all, it's available today.
If a keyboard is what you're after...

Yes, the Epic 4G  ($100) is beginning to show its age, but it remains one of our favorite  phones in the Galaxy S lineup. Like other devices in Samsung's family,  it features an attractive Super AMOLED display that's significantly  better than its competition -- namely the EVO Shift 4G ($100) and Arrive  ($200) -- both of which use traditional TFT-LCD displays. You're also  sure to appreciate its superior camera, which features a dedicated  shutter button and LED flash. Like the Arrive (which lacks 4G), it  provides an excellent five-row QWERTY keyboard. We do appreciate the EVO  Shift 4G's longer battery life, and this may factor into your decision  (as both devices support WiMAX), but the Epic 4G's strengths are  impossible to ignore.
If you're looking to squeeze every penny...
Holy smokes, can it be true? Our previous top choice on Sprint now  occupies the carrier's value position. Folks, this is a steal any way  you look at it. The Nexus S  holds a very special place in our hearts at Engadget, and it's still  one of our favorite phones on the market today. The Sprint version  offers enhanced WiMAX speed, and now that its nasty connectivity  troubles are out of the way,  this stock Android sweetheart can hold its head high once again. Okay,  so it's not for everyone. It lacks a notification light and Google axed its integration with Facebook, but if you're willing to overlook these 
minor details,  you'll find a remarkable handset that's free of carrier bloat and  operates with the beautiful simplicity of Gingerbread. Further, if  you're curious about Google Wallet, the Nexus S 4G remains your best choice going forward.
T-Mobile
We spent a bit of time debating this one, but our choice of the G2x over the Sensation 4G  ($250 before $50 mail-in rebate) really wasn't as difficult as you  might think. Yes, it was plagued with availability constraints and  suffered some nasty bugs, yet both issues appear to be resolved. Now with stock Gingerbread,  the G2x is lean, mean and ready to take on the competition. While the  Sensation 4G features an admirable S-LCD display with a higher qHD  resolution, we find the G2x's IPS screen more pleasing than its rival.  What's more, LG's plain vanilla implementation of Android 2.3 delivers a  more responsive user experience and its camera produces better images  than HTC's. While both phones are very good, the G2x provides a rare  opportunity to experience Android just as Google intended -- and, wield  one of the most powerful handsets on the market. While we recommend  holding out for our review of the Galaxy S II, this mighty LG remains a winner in our book.
If a keyboard is what you're after...

It's sad to see the G2  fade from T-Mobile's lineup, but fortunately for users who demand  physical keys, it was usurped by a respectable replacement. The myTouch 4G Slide  ($250 before mail-in rebate) pairs a sliding QWERTY keyboard with  Sensation 4G internals. Sadly, it's appreciably less responsive than its  larger sibling -- and we weren't completely thrilled with the 3.7-inch  S-LCD display, the battery life or the keyboard -- but it's the clear  choice for this category. Fortunately, those who care about camera  quality will want to take particular notice, as the myTouch 4G Slide  produces truly outstanding images and combines an excellent two-stage  shutter button. While it's not without compromise, if you insist on a  keyboard, you'll most likely be content with HTC's latest offering.
If you're looking to squeeze every penny...

If you remember our last buyer's guide, you might be surprised that the Nokia Astound  no longer occupies this position. While it remains a great value at  $100 (before a $50 mail-in rebate), it's becoming increasingly clear  that Symbian's days are numbered. It's still the most feature rich of  the bunch, but if you want an option that will be viable two years from  now, Android is your best bet. Fortunately, T-Mobile has two excellent  options -- the Optimus T and Wildfire S  -- the latter is free online and $50 in-store (on contract). Very  little separates the two, as they're both powered by a 600MHz Qualcomm  CPU and Adreno 200 GPU. Ultimately what swayed us toward the Optimus T  is the near-stock implementation of Android 2.2. It offers performance  that's a bit snappier than the Wildfire S, which runs Gingerbread with  HTC Sense on top. Both feature very admirable cameras, and the only  aspect which may sway you toward the Wildfire S is the inclusion of an  LED flash. If this doesn't matter to you, go with the Optimus T and be  happy.
Verizon
If you'd bought into Verizon's commercials for the Bionic,  you might've been under the impression that it'd be the one phone to  rule them all -- which is far from the truth. Still, it's a very good  handset and holds the distinction as the sole option on Big Red to  provide both LTE 
and a dual-core processor, which is a  compromise you're forced to make with the carrier's other phones. It  also features an excellent high-res display. We're not wild about its  battery life, however, and if this aspect is a deal-breaker for you (and  extended batteries aren't your cup of tea), we suggest you take a good look at the Droid Charge  ($300). It features excellent battery longevity, along with an  attractive Super AMOLED Plus display and a superior camera -- at the  loss of a dual-core processor, of course. Finally, if you want a quality  smartphone without the insane price tag, the Droid X2  ($200) provides a good value with a faster Tegra 2 CPU and a thinner  enclosure -- although, the lack of LTE connectivity is a frustrating  omission.
If a keyboard is what you're after...

Verizon has two interesting choices for QWERTY lovers, but sadly, we're only able to recommend one of them. While the BlackBerry Bold 9930 ($250) isn't for everyone, it currently bests its closest competitor, the Droid 3  ($200), which suffers from a host of frustrating software glitches.  It's certainly possible that Motorola may fix these issues, but we're  currently contending with troubles such as spontaneous reboots and  annoyances with the camera software. Meanwhile, the Bold 9930 offers one  of the best keyboards we've ever encountered, along with excellent  battery life, snappy performance and a very attractive (though  comparatively small) display. Further, users will find the BlackBerry  features excellent styling and are likely to appreciate its world phone  capabilities. Sure, its camera isn't the best, and we're growing weary  of RIM's aging OS, but if the keyboard is most important to you, it's  hard to go wrong with the Bold 9930.
If you're looking to squeeze every penny...
The Droid Pro  holds the special distinction as the only smartphone on Verizon selling  for less than $80 that we're willing to use (in a pinch). Taken as a  budget entry, it's a very respectable choice, and as a nice bonus, it  also doubles as a world phone. Still, there's no denying that Big Red's  budget entry is the most expensive and least compelling of the big four  networks. Unless you live in an area that depends on Verizon for  service, we suggest taking a look at the current choices from Sprint and  AT&T.
US Cellular
In complete disclosure, we haven't had the opportunity to properly review the HTC Merge,  but we think it's the most compelling smartphone on US Cellular. It's  quite a shame that Verizon chose to pass on it, as the phone offers a  3.8-inch S-LCD touchscreen, along with a sliding QWERTY keyboard and  global roaming support. We feel this last feature makes it a clear  front-runner when compared to our previous top selection, the Mesmerize ($200 before $100 mail-in rebate). Interestingly, US Cellular is home to another Verizon cast-away, the Genesis  ($230 before $100 mail-in rebate), which was set to take life as the  enV Pro. Don't be blinded by nostalgia, however, as US Cellular rates  its battery life at a miserable 2.5 hours of talk time (compared to 6.8  hours for the Merge and 7 hours for the Mesmerize).
Cricket, MetroPCS and Virgin Mobile
Let's be honest, if you're a customer of Cricket, MetroPCS or Virgin  Mobile, you're looking to save some cash. These networks offer fantastic  plans with generous unlimited offerings at modest prices. They also  sell more powerful options than LG's Optimus lineup. The Indulge is sold by Cricket ($280) and MetroPCS ($300), and the Triumph  ($300) recently stirred some excitement at Virgin Mobile. Still, none  of these phones provide sufficient value to justify their steep price  tags. Meanwhile, the Optimus is a proven performer that delivers the  quality you deserve for half the price.
Cincinnati Bell

The Nexus S  was a perfect suitor for Cincinnati Bell, which is a respected provider  of AWS service in its home territory. The network operates on the same  bands as T-Mobile, and as such, many of its popular phones have migrated  to this regional carrier. It also offers the Panache ($250 before $50  mail-in rebate), which is a rebranded myTouch 4G, the Vibrant ($150 before $50 mail-in rebate), and remains a home for the discontinued Streak 5  ($250 before $50 mail-in rebate). As you could've guessed, we're most  excited about the stock Android offering from Google, which Cincinnati  Bell has renamed the Nexus S 3G. While it's not able to benefit from the  network's recent HSPA+ rollout,  we still love the Super AMOLED display, quality camera and nimble  performance of the Nexus S. This unlocked handset has been compatible  with Cincinnati Bell's network all along, but its $530 price was quite  the deterrence. The ability to purchase this pure Android Sammy on  contract is quite an opportunity, and we recommend that customers make  the most of it.
Unlocked smartphones
Quite simply, the Galaxy S II  is our favorite smartphone of the season. We're particularly enamored  with the unlocked version, which can be used on any compatible carrier  without the need for a two-year agreement. Yes, it's expensive, but the  Super AMOLED Plus display is sharp and vibrant, and its excellent camera  is outclassed only by the Nokia N8  (which remains in a league of its own). Even better, it boasts  quad-band 3G support with 21Mbps HSDPA connectivity and a powerful  Exynos SoC with a dual-core CPU that's certain to not leave you wanting.  If you're willing to take the plunge, you won't regret it. Consider Expansys, Negri Electronics and NewEgg in your search for this amazing handset.

While the Galaxy S II may very well be the ultimate travel companion,  if you're looking for an excellent unlocked alternative that runs pure  Android and can be purchased with a generous subsidy, look no further than the Nexus S.  It comes in two flavors, one that supports AT&T's 1800 and 850MHz  bands, and another which support's T-Mobile's 1700MHz AWS spectrum. Both  models are compatible with the 1900 and 900MHz standards for use while  abroad. Better yet, if you're keen to the latest that Android has to  offer, the Nexus S has historically been the quickest to receive updates from Google  -- thanks in large part to its stock Android underpinnings. Sadly, it  only features 7.2Mbps HSDPA and like the Nexus S 4G, it lacks  integration with Facebook contacts -- although, the former has little  "real world" consequence, and the latter is quite easy to overcome with a  custom ROM.
Editor's note: Hey all. Thought I'd address the  comments about the timing of this article. Ultimately, this guide is  here to help empower you, the reader, to make better decisions. Our  previous guide was sorely out of date, and it failed to accomplish that  objective. We've done our best to make this guide not only current, but  forward-looking, too. If we'd waited for the arrival (and reviews) of  the Galaxy S II devices, then we'd be stuck in the trap of having to  wait for the next iPhone, etc. All the while, our previous guide would  become even more irrelevant. As it stands, we genuinely believe these  are the best options (and alternatives) on the market today. Many of you  are understandably willing to wait for new top-tier phones to come out,  and that's totally cool. However, we can't be frozen into paralysis  just because the landscape is constantly evolving. We're now aiming to  make this feature a regular occurrence on the site -- think four times a  year, or about every three months. This won't be the last time you see a  guide published when we're on the cusp of something big around the  corner, either. That's just the nature of the game. Still, by doing the  guides more regularly, we hope it'll be a helpful resource when  purchasing a new phone. Combined with more current reviews (as they come  out), you'll definitely be able to make a good decision. Hope this  helps you understand our rationale.