Samsung Galaxy S4 review: The everything phone for (almost) everyone

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CNET Editors' Rating

4.5 stars Outstanding
  • Overall: 8.6
  • Design: 9.0
  • Features: 9.0
  • Performance: 9.0

Average User Rating

3.5 stars 297 user reviews
Review Date:
Updated on:

The Good The Samsung Galaxy S4 has Android 4.2.2, a fantastic camera, a powerful quad-core processor, and software solutions for just about every scenario -- including working as a TV/DVR remote. It's also comfortable in hand and has NFC, a user-replaceable battery, and a microSD storage slot.

The Bad Its screen is dimmer than competitors', its plastic design gives it a cheaper look than its rivals, and we found the Galaxy S4's power button turned on at undesirable times. Not all camera modes work as promised, and a long list of software features can quickly overwhelm and confuse.

The Bottom Line Its laundry list of features require time and effort to truly master, but the Galaxy S4 is the top choice for anyone looking for a big-screen, do-everything smartphone.

CNET Editors' Choice Apr '13

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With the Galaxy S4, Samsung clinches its goal of global smartphone domination. The supercharged Android 4.2 Jelly Bean device may look like a toy compared with the stunning HTC One and the dapper iPhone 5 . But taken together, its blazing quad-core processor, colorful 5-inch HD screen, sharp-shooting 13-megapixel camera, and mile-high stack of software extras make the Galaxy S4 the most powerful superphone anywhere in the world.

What does the Galaxy S4 have? A better question is: what doesn't it have? There's the 1080p screen, zippy processing speeds that are ideal for gaming , and an IR blaster that can control your TV. Then there's the parade of camera tricks that cram action shots into one scene, use both front and back cameras, and film a video in slow-mo. The GS4 can harness your eyeballs to pause video, and it can answer a phone call with the wave of your hand. Unlike the HTC One and the iPhone 5, it also piles on expandable storage space and a removable battery.

It's true: most of the GS4's featurettes aren't essential -- and some aren't even very useful, like the camera's Eraser mode, which I never got to work, a subpar optical reader, and a translation tool that just duplicates what Google Translate already does. While none stands out as a must-have, cannot-possibly-live-without extra, these features do add up to a compelling testament that the Galaxy S4 is more than a step ahead of the pack.

So, if you want a lovingly crafted statement phone that barely strays from Android's core offering, then buy the HTC One, which also has double the internal storage for about the same price. But if you're looking for a superphone that surpasses all other handsets on the features front, then you'll find in this deserving all-around flagship a strong mix of extremely competent hardware and aspirational software with very few major drawbacks.

Editors' note: This Samsung Galaxy S4 review reflects a week of in-depth testing. I'll continue expanding the review in the upcoming weeks and months as I spend even more time with the device across U.S. carriers.

Design and build

Throughout the lifetime of Samsung's Galaxy S line , one of the biggest complaints levied against the manufacturer was -- and is -- how its plastic construction and flimsier-looking industrial design fall short compared with premium rivals from Apple and HTC.

No, Samsung sticks by plastic, and points to only a handful of Android enthusiasts who really care about vaunted materials like aluminum and glass. Yet the phone maker has also made an effort to add more "refined" touches to the Galaxy S4.

Samsung Galaxy S4 flanked by the iPhone 5 and HTC One
The Samsung Galaxy S4 is made of more modest material than the HTC One, left, and iPhone 5. Josh Miller/CNET

Indeed, when you compare the S3 and S4 side by side, you note a more rectangular home button, and metallic accents around the rim. The S4's 5-inch screen is taller and the bezel surrounding the display slimmer. Its volume and power/lock buttons are metallic-looking polycarbonate, and tooled to have slanted sides and a flat top. Look closely, and you'll see that the gaps around these controls are narrower, too.

The GS4's metallic spines are also reworked to be steeper and less curved than the Galaxy S3. In fact, while Samsung boasted its GS3 was inspired by nature, the GS4's straight sides seem to be inspired by the iPhone 5 or HTC One.

Galaxy S4, Galaxy S3
Samsung's Galaxy S4, left, looks a lot like its predecessor, the Galaxy S3. Josh Miller/CNET

At 5.4 inches tall by 2.8 inches by 0.3 inch thick, the Galaxy S4 is actually 0.7 millimeter thinner than GS3, and at 4.6 ounces, it's 0.7 ounce lighter as well. Yet, the S3 and S4 generations still look so similar, you might not know the difference if you're not looking closely. When in doubt, flip the S4 over to see the new tiny black-and-silver diamond design on the black mist model, or a similar pinprick design on the white frost edition. As with the Galaxy S3's brushed-plastic backing, the newer generation is so reflective, you could use it as a makeshift mirror.

Compare Galaxy S4 specs with the HTC One, iPhone 5, and BlackBerry Z10.

All about the screen
Let's head back to the screen for a minute. The 5-inch 1080p HD display yields a pixel density of 441ppi, which is higher than Apple's 321ppi screen and lower than the HTC One's 468ppi screen. In the end, I'm not sure how much these pixel density wars matter . The naked eye doesn't calibrate numbers, but it does understand if an image looks rich and sharp and detailed, versus dull and blurred.

Samsung Galaxy S4
A closer look at the "frost white" Galaxy S4. Jessica Dolcourt/CNET

Carrying on its fine tradition, the Galaxy S4's HD AMOLED display nails it with color saturation and contrast, sharply defined edges and details. Articles are easy to read, gameplay looks good, and photos and videos look terrific.

Samsung Galaxy S4
The Galaxy S4 is a little large for more snugly-fitting pockets. Josh Miller/CNET

In a new display setting, Samsung attempts to correct an old complaint about certain colors, like green, looking too saturated. In the screen mode settings, you can choose to let the GS4 auto-adjust the color tone depending on what you're looking at. As on the Galaxy Note 2 , you can also manually select from dynamic, professional photo, and movie presets, the latter of which CNET display guru David Katzmaier says yields the most accurate colors .

There are a few other important things to note about the Galaxy S4's display besides color and sharpness. As with the GS3, this year's model is highly reflective indoors and out, and even at its full brightness, it can seem dim outside when fighting bright light.

Outdoor readability in strong sunlight is really tough; when taking photos, I very often couldn't tell that my finger covered the lens until I got back inside, a plight that ruined several pictures. Now would have been the time for Samsung to follow Nokia's lead with its excellent polarized screen filter on phones like the Nokia Lumia 920 .

Samsung Galaxy S4
A look at the Galaxy S4's B-side. Sarah Tew/CNET

At least Samsung did mimic another terrific Nokia implementation, giving the S4 a sensitive screen you can navigate with a gloved hand in addition to the naked finger.

On top of possessing a sensitive screen, the Galaxy S4 is also the first commercially available device to feature the thinner, stronger Gorilla Glass 3 cover glass.

Features layout
The phone's screen is a big deal, no doubt, but in my opinion, the other most interesting new real estate lies north of its display.

A 2-megapixel front-facing camera sits in the upper-right corner, neighbored to the left by ambient light and proximity sensors. To the left of the speaker grill is the phone's IR, or infrared, sensor. There's also an LED indicator at the top left corner. This will glow or blink green, red, or blue to indicate certain activities.

Samsung Galaxy S4's IR blaster
An infrared blaster turns your Galaxy S4 into a universal TV and DVR remote. Sarah Tew/CNET

Sharing the top edge with the phone's 3.5-millimeter headset jack is the Galaxy S4's brand-new IR blaster, which you'll use in conjunction with the Watch On app as a TV remote (it works!) All things being equal, I prefer how HTC integrated its IR blaster in the One's power button.

Below the screen, the home button takes you home (press), launches Samsung's S Voice app (double press), and loads up recently opened apps (hold). Press and hold the menu button to launch the Google Search app with Google Now . The back button is self-explanatory.

You'll adjust volume on the left spine, charge the phone from the bottom, and turn the phone on and off from the right spine. On the back, you'll see the 13-megapixel shooter and LED flash just below. Pry off the back cover to get to the microSD card slot, SIM card slot, and battery.

Samsung Galaxy S4
Samsung worked on making the GS4's volume and power buttons look more high-end. Josh Miller/CNET

So do I like the new design? I do. Its sharper edges do make it look like a more premium device than its predecessor, but it won't ever be as eye-popping as the gorgeous HTC One or as understatedly elegant as the iPhone 5. Still, it's pleasant to look at and, in my opinion, more comfortable to hold than the other two.

The only thing I don't like is how Samsung's power/lock screen seems to easily light up the phone while it's tossed around in my purse. Over the years, this has been a constant personal annoyance, not only to find a phone turned on that I had clearly turned off, but more importantly, to see my handset's battery level low because I hadn't realized the screen was sucking it down. I'd probably prefer this button up top.

OS and interface

The Galaxy S4 proudly runs Android 4.2.2 beneath its very highly customized Touch Wiz interface. Argue the pluses and minuses of stock Android versus overlay all you want -- Touch Wiz has long looked outdated and stale (especially compared with HTC's fresh new UI ,) but Samsung's pile of software lets the GS4 go places that a stock Android phone can't even dream about without rooting and mods .

Take my favorite new interface addition, for example. Samsung has bulked up its one-touch system icons in the notifications shade. Tap a new button in the upper right corner to expand the list to 15 icons you'll no longer have to dig through settings menus to find. If you press the edit button, you'll be able to drag and drop icons to reorder them. This is very cool and extremely useful for finding and toggling settings.

Galaxy S4's notifications
The new notifications shade on the Galaxy S4 adds a heap of new one-touch settings options; you can reorder their positions in the edit menu. Screenshot by Jessica Dolcourt/CNET

Menus play a huge role in the Touch Wiz ecosystem, so new users shouldn't neglect them. This is where a tremendous range of editing and advanced settings options live for apps as diverse as the home screen, the browser, the keyboard, and so on.

In an attempt to simplify the settings menu, the GS4's gets a makeover that breaks up topics into separate screens for connections, device items like the lock screen, gestures, and keyboard settings, an accounts pane, and the More category for battery, storage, and security concerns.

Keyboard options
I have a love-hate relationship with every virtual keyboard I meet. I demand grammatical and spelling accuracy, but am also apparently a sloppy typist. Punctuation always takes too long to insert and autocorrect rarely seems smart enough.

Keyboard options on the Samsung Galaxy S4
Swype and the default Samsung keyboard are two options. You can also input voice and handwriting besides. Screenshot by Jessica Dolcourt/CNET

The Galaxy S4 gives you a few options. There's the standard Samsung keyboard, which lets you turn on SwiftKey Flow for tracing out words. There's also a separate Swype keyboard you can use instead.

I still became aggravated with mistakes and a slower typing flow than I wanted, but I did like the multiple Samsung keyboard options to introduce handwriting or insert images from the clipboard -- not that I can see myself using either.

Lock screen
In the Galaxy S4, the lock screen has become a more customizable place. You'll still choose if you swipe to unlock or use a passcode or face scan, and you can still add and order lock screen icons that serve as shortcuts to the camera, search, and your contacts.

Now, however, there are lock screen widget options, similar in concept to what you can get on Windows Phone , but different in execution. For example, you choose if you'd like to see the clock or a personal message on the screen, and if you'd like to swipe to open a list of favorite apps or launch the camera (I chose the camera and clock).

Samsung Galaxy S4
You can choose from a couple of widgets on the lock screen, but better swipe on top to unlock to the app. Screenshot by Jessica Dolcourt/CNET'

Getting the camera to open from the lock screen isn't all that intuitive. The trick is to swipe right to left near the top of the widget. If you swipe on the bottom half of the page, you'll go straight into the home screen.

There's also a nice new lock screen effect: Light. With Air View enabled, a point of light follows your fingertip as you hover over the display.

Easy mode
If the full Touch Wiz experience feels too confusing, Samsung is trying what others, such as Korean competitor Pantech , have done to simplify its take on Android with an easy mode.

Around in Samsung products since the Galaxy Note 2, easy mode, which you can start during the setup process or find later in the settings, replaces your home screens and reskins some critical apps (calendar, browser, contact list, and so on) to pare down the quantity of confusing options.

Easy Mode in the Galaxy S4
Easy Mode vastly simplifies the Android experience on the home screens and within certain key apps. Screenshot by Jessica Dolcourt/CNET

You'll still get access to core apps and features, even some extra camera modes. The icons and fonts enlarge across the easy-mode apps, and the browser includes a plus/minus icon for further increasing the phone's font size. The settings menu, however, remains the same, and it's easy to toggle back and forth from the "light" interface to full-on Touch Wiz.

Apps and features

Before diving into the GS4's feature list, let's just run through one of its key inner workings: how it communicates wirelessly. It goes without saying (but I'll say it anyway) that the Galaxy S4 is up-to-date in all its radios and communications. The phone supports 4G LTE here in the U.S. and in other regions.

There's support for NFC and Samsung's S Beam version of Android Beam, which can send files like photo and video as well as documents and URLs. You'll also find Bluetooth 4.0, and although Samsung doesn't advertise it, there's sometimes wireless charging support as well, if you swap in a different back cover, which isn't available for the U.S. at the moment.

Wi-Fi is 802.11 a/b/g/n/ac (5GHz), and the handset can serve as a mobile hot spot for up to 10 devices. Wi-Fi Direct and DLNA support are a go, and a renamed feature that used to be known as AllShare Cast, can mirror the contents of your phone's screen with another device. Samsung's Kies app connects you with your computer over Wi-Fi.

Preinstalled apps
Between Samsung and T-Mobile, there are plenty of apps to get you started, beyond essentials like a calculator, calendar, and music player, and Google services like turn-by-turn navigation and Gmail.

Samsung Galaxy S4
The GS4, in white frost and black mist colors. Jessica Dolcourt/CNET

T-Mobile's app posse includes titles like the T-Mobile hot spot, account manager, visual voice mail, and T-Mobile TV. (I had to uninstall and disable one management app whose unwanted alerts kept popping up in my notifications tray.)

Meanwhile, Samsung piles on with its chat app and the S Memo app, which I keep trying to like and which keeps disappointing me with overcomplication.

There are also hubs for Samsung's featured programs, and the commercial music and video Hub that's run by 7 Digital. Samsung Link looks new, but really isn't. It's the GS3's All Share Play, renamed, and it, too, shares content across "smart" devices.

Samsung also includes branded versions of its own translator, a calories and exercise app, and Watch On, its TV remote-plus-video-rental app (more on all these later). A special version of Flipboard is installed; this build takes advantage of Samsung's Air View functionality to preview content when you hover over it.

Samsung Hub app on the Galaxy S4
Samsung's Hub lets you download, rent, and buy music and movies. Sarah Tew/CNET

The Story Album app is new as well. You can use it to create narrative albums with photos and text, and print (buy) a photo book through the service Blurb. I'm generally a fan of Blurb and of anything that makes it easy to put those camera photos to practical use. However, I didn't appreciate the app popping up notifications to "suggest" albums for me to create and books to buy.

I'm about to dive a little deeper into the heaps of Samsung apps and software features, so keep reading for more, or skip ahead for details on call quality, processor performance, and battery life.

Eye-tracking and gestures
Eye-tracking software sounds like a cool, futuristic power for controlling your phone with your peepers, but that's really only partway true. It isn't so much that the cursor or text follows the movement of your eyes, which you probably wouldn't want anyhow, if you think about it. More generally, the software knows when you're paying attention and when you avert your gaze.

Smart Pause and Smart Scroll are two features that build off the Galaxy S3's optional Smart Stay feature, which kept the screen from dimming when you looked at it. In the GS4, tilting the screen up or down while looking at it scrolls you up or down, say if you're reading a CNET story, of course. As a daily commuter with one hand on the phone and one on a hand strap, I think this could be a more convenient way to catch up with news while on the train or bus.

Smart Pause on the Galaxy S4
With Smart Pause turned on, videos pause when you look away and start up again when you focus back on the screen. Sarah Tew/CNET

I really like the idea of Smart Pause, which halts a video you're watching when your eyes dart away, then resumes when you start paying attention again. Smart Pause was more responsive and easier to control than the scrolling, which experienced some abrupt motions and a short lag time.

While you can make googly eyes at the GS4, most gestures are still reserved for your fingertips. Hovering features known as Air View make their way from the stylus-centric Galaxy Note 2 and Galaxy Note 10.1 tablet to the Galaxy S4, but replace the stylus with your digit.

Hover your finger and you can preview a video clip or image from the photo gallery, glance at browser tab thumbnails, find your place on a video timeline, and check out an e-mail. You'll also be able to magnify calendar events and get a closer look in speed dial. As I mentioned above, Flipboard has built a customized app to work with Air View that lets you hover over a tile to see which articles lie beneath.

You can control the Galaxy S4 by waving your hand in front of the camera sensor. Sarah Tew/CNET

In addition to hovering with a fingertip, you can wave or wipe your whole hand in front of the screen (and sensor near the Samsung logo) to navigate around. For example, enable this gesture and you can agitate your palm to pick up the phone or switch songs in a playlist. Steadily sliding your hand back and forth can advance photos in a gallery, or browser tabs. You can also scroll up and down in a list.

The feature was a little jerky and jumpy when I tried it, but it did work. As with eye-tracking, you'll have to wait a half-second to see results. Luckily, air gestures are sensitive up to 3 or 4 inches off the top of the phone, so you have a little latitude...or altitude, as it were.

Samsung really envisioned using these gestures in specific scenarios, mostly when your hands are already full with something else. For instance, you'll probably never wave your hand over the phone to answer it unless you're in a car, but when you do, it'll automatically pick up in speakerphone mode. If you have Bluetooth pairing, it'll kick into the car's Bluetooth if you answer that way.

Likewise, passing your hand over the sensor to advance music titles works best when your phone is docked on your desk.

Your phone, the TV remote
Like HTC's One, you can program the Galaxy S4 to command your TV, DVR, Blu-ray player, home theater setup, and streaming set-top box. Although I set it up with a Samsung TV, it should work with pretty much any TV on the planet.

To use it, fire up the Watch On app -- which, also like the HTC One's app, is powered by Peel behind the scenes -- and go through the reasonable setup process. Once you're good to go, you'll be able to pull up remotes for your TV and DVR, plus a universal remote. There's a Netflix tie-in as well, but I was also able to use my usual Netflix setup through the TV's extra tools.

I found Watch On easy to use, and within a few minutes I was flipping through live TV listings, playing shows through Netflix, and setting up new DVR recordings using my phone.

Play

If there's one area of the controller that could use some work, it's the visual cue that you can scroll down the remote's interface for even more button options. The remote did hang once, and I had to close the app and reboot it to get things going again. However, I blame the TV, which sometimes does that, more than the remote.

In addition to browsing, Watch On bundles a recommendation engine that churns up suggestions as you use it. Filter by categories like new, comedy, or drama, or pull up the context menu for a universal search -- this includes live listings and Samsung/Peel's premium video library. You can also switch over to the On Demand tab to access show rentals.

If you're feeling social, you can give on-demand shows a thumbs-up or thumbs-down and recommend listings on Facebook and Peel.

Samsung's Watch On app uses Peel to control the TV, DVR, and set-top box.
Samsung's Watch On app has a universal remote, as well as separate controls for your TV and DVR. Jessica Dolcourt/CNET

I'm not as big a fan of the interface for the universal search results. I'd love icons on the results page to display at a glance what kind of content it is without first having to click on the result for more details. This would be a natural fit for hovering with Air View.

If you have the right kind of Samsung TV from 2012 or 2013, you can also use DLNA sharing features to swap content between your phone and TV. One scenario is watching a video you caught on your phone's camera on the big screen. Another is wanting to continue watching your show even when you leave the room to do something else. Warning: you have to be within the IR range.

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Samsung Galaxy S4 Android Phone

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Quick Specifications See All

  • Technology WCDMA (UMTS) / GSM
  • Weight 130 g
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