Samsung Galaxy Book4 Ultra review: Luxury that lasts all day

At a glanceExpert's Rating
ProsAbsolutely fantastic battery lifeSolid GPU and graphics performanceGorgeous OLED screen that can be used outdoorsGreat audioAI-powered Core Ultra insideConsChargers keep getting biggerStill not a great keyboardOur VerdictSamsung’s premium laptop still delivers an all-around great experience, now with even better battery life and an AI-powered processor.

Samsung’s Galaxy Book4 Ultra delivers on the promise that its predecessor first made: a stunning screen, lovely audio, and a discrete GPU that could be used for content creation and gaming alike. But this followup just lasts and lasts, refusing to power down after a full day’s worth of playing back video.

Samsung’s Galaxy Book4 is the successor to the Samsung Galaxy Book3, one of the first “content creation” laptops. Not quite a gaming PC, but a bit chunkier than a traditional thin-and-light, this class of laptops feature luxurious OLED displays, rich audio, and a discrete GPU. It’s the flagship of Samsung’s notebook line, and offers even more connectivity options if you buy into the Samsung Galaxy ecosystem.

These aren’t cheap PCs, especially if you opt for the higher-end Nvidia GeForce RTX 4070 GPU inside the $2,999 model that Samsung sent us for review. But aside for the middling keyboard, there’s not a lot to this notebook PC that holds it back.

Looking for more options? Check out PCWorld’s roundup of the best laptops.

Samsung Galaxy Book4 Ultra: What’s new

Samsung’s Galaxy Book4 Ultra is its premium model. It also offers the base $1,449 Galaxy Book 4 Pro clamshell, plus the $1,099 Galaxy Book4 Pro 360, and the $1,899 Galaxy Book4 Pro 360 convertible. The Book4 Ultra is an Intel Evo Edition laptop, the brand that denotes that it received special testing from Intel engineers. It’s also now secured by Knox, Samsung’s security technology.

Samsung offers the 16-inch Samsung Galaxy Book4 Ultra in two versions: a $2,399 version that includes a Core Ultra 7 and an Nvidia GeForce RTX 4050; and a $2,999 premium option with a Core Ultra 9 and a GeForce RTX 4070 inside. The cheaper model also includes 16GB of memory and a 1TB SSD, while the higher-end model bumps the memory to 32GB. Samsung provided us a review unit in the more expensive configuration.

What’s new? Two things: the more advanced Core Ultra processor options, making them AI PCs and the addition of an integrated touchscreen. Samsung’s Galaxy Book3 Ultra didn’t offer a touchscreen at all, though it did include 32GB memory options as well as the two GeForce RTX 4050 and 4070 GPUs. Samsung does not include an S Pen, however.

Smaller improvements also appear. Last year’s model also offered a 512GB SSD as the default, with the 1TB offering as the premium option; now it’s standard. The HDMI port has been upgraded to HDMI 2.1, which can connect to a 4K display at 120Hz versus the 60Hz of HDMI 2.0. Bluetooth has been slightly upgraded to Bluetooth 5.3.

Samsung also beefed up the display with what it calls a Vision Booster, tweaking the color and contrast to adjust for different types of lighting. It also expanded the Book4’s internal cooling solution by 11 percent, theoretically increasing performance but adding to its weight. Skip ahead to our performance tests for that.




Samsung’s Galaxy Book4 Ultra.



Samsung’s Galaxy Book4 Ultra.Mark Hachman / IDG

Samsung’s Galaxy Book4 Ultra.Mark Hachman / IDG


Mark Hachman / IDG

Otherwise, the Galaxy Book4 appears to be largely the same as last year’s model, with the same, ports, keyboard, and trackpad — well, almost. Like many new laptops, it now includes a Copilot key to launch Microsoft’s integrated AI app.

On Samsung’s site, Samsung offers trade-in offers as well as financing. At press time, Samsung offered a bundle that provided a top-rated T7 Shield external SSD, at 2TB, for free.

Samsung Galaxy Book4 Ultra: Specifications

Processor: Intel Core Ultra 7 155H/ Core Ultra 9 185H (Core Ultra 9 as tested)

Display: 16-inch touch (2,880×1800), 120Hz AMOLED 2X, 120 percent DCI-P3 color volume

Memory: 16GB/32GB LPDDR5x (32GB as tested)

Storage: 1TB SSD PCIe Gen 4

Graphics: Nvidia GeForce RTX 4050/4070 mobile GPU (RTX 4070 as tested)

Ports: 2 Thunderbolt 4, USB Type-A, HDMI 2.1, microSD, Headphone/Mic

Security: Fingerprint reader

Camera: 1080p (user-facing)

Battery: 76Wh (rated)

Wireless: Wi-Fi 6E (Gig+), 802.11 ax 2×2, Bluetooth 5.3

Audio: AKG Quad Speaker (two 5W woofers, two 2W tweeters), Smart Amp, Dolby Atmos

Operating system: Windows 11 Home

Dimensions:  13.99 x 9.86 x 0.65in. (16.5mm)

Weight: 4.1lbs (rated)

Colors: Moonstone Gray

Price:  beginning at $2,399.99 ($2,999.99 as tested)

Two things struck me as I unboxed the Galaxy Book4 Ultra: how light(?!) it felt, though at 4.1 pounds; and the chunkier, rather awkward charger that Samsung ships with it.

More and more laptop makers are turning to so-called GaN chargers, which eliminate the power “brick” by well, squishing it into a smaller form factor. But if you don’t own a power strip with perpendicular plugs, forget it. It fits quite nicely into a wall socket, however. My Galaxy Book3 Ultra review asked Samsung to spend a bit of time actually shrinking the charger; instead of listening, Samsung ignored me and went into the entirely opposite direction. Oh well.




The Samsung Galaxy Book4 Ultra charger (left), followed by the Ultra 3’s charger and a third-party 100W charger.



The Samsung Galaxy Book4 Ultra charger (left), followed by the Ultra 3’s charger and a third-party 100W charger.Mark Hachman / IDG

The Samsung Galaxy Book4 Ultra charger (left), followed by the Ultra 3’s charger and a third-party 100W charger.Mark Hachman / IDG


Mark Hachman / IDG

The charger maintains the Book3’s quick-charging prowess, however. It’s rated to supply 55 percent of a charge in 30 minutes; I tested it once at supplying 61 percent charge in 33 minutes. The battery life, as we discuss later on, is fantastic, and a full 24 hours of battery life is almost within sight.

Also, if your heart fluttered with excitement over an entirely new color scheme, settle down. The “Graphite” of the Book3 Ultra and the “Moonstone Gray” of the Book4 are practically the identical darkish gray, with the same premium aluminum finish. That’s not to diminish Samsung’s design at all; the black keyboard accents the chassis quite nicely.

The Galaxy Book4 Ultra squeezes an improved cooling solution into the exact same dimensions of the Galaxy Book3 Ultra. At 0.65 inches, the Ultra design is a tad chunkier than the Book’s Ultra 360 designs. Air is sucked through a grill underneath the laptop and pushed outward through the hinges. At default settings, the fan really doesn’t turn on much at all, perhaps due to the Core Ultra’s power-sipping architecture. Even during benchmarks, I was surprised by the low fan speed. In all, it’s a generally silent laptop, with an unobtrusive fan under load.




The right side of the Samsung Galaxy Book4 Ultra includes a microSD slot and a USB-A port, along with a headphone jack. Take that Galaxy S24!



The right side of the Samsung Galaxy Book4 Ultra includes a microSD slot and a USB-A port, along with a headphone jack. Take that Galaxy S24!Mark Hachman / IDG

The right side of the Samsung Galaxy Book4 Ultra includes a microSD slot and a USB-A port, along with a headphone jack. Take that Galaxy S24!Mark Hachman / IDG


Mark Hachman / IDG

Samsung uses the standard Windows 11 setup process, asking you to add your fingerprint to Windows Hello. That fingerprint reader is hidden within the power button. As with other Samsung laptops, running the battery down too far may mean that you have to charge it for a few minutes before it will actually boot. Samsung’s notebooks also require you to hold down the power key for an indeterminate amount of time before the laptop boots, which always gives me a bit of anxiety.

There were some Windows stability issues, however. During the initial setup the Windows 11 Settings menu locked up and crashed. I update the laptop first via Windows 11’s Settings, then the Microsoft Store, and then via any utility software that ships with the laptop — to process BIOS/firmware updates, touchpad drivers and the like. While updating the Book4 Ultra via Settings, the laptop stopped communicating wirelessly and then Settings crashed. Rebooting seemed to solve the problem, however, and I noticed no further issues.




The left side of the Samsung Galaxy Book4 Ultra includes a pair of Thunderbolt 4 ports and an HDMI 2.1 port. If you have an 8K display (lucky!) it will connect to it at 60Hz.



The left side of the Samsung Galaxy Book4 Ultra includes a pair of Thunderbolt 4 ports and an HDMI 2.1 port. If you have an 8K display (lucky!) it will connect to it at 60Hz.Mark Hachman / IDG

The left side of the Samsung Galaxy Book4 Ultra includes a pair of Thunderbolt 4 ports and an HDMI 2.1 port. If you have an 8K display (lucky!) it will connect to it at 60Hz.Mark Hachman / IDG


Mark Hachman / IDG

The laptop locked up again when I tried to play back a file we use in our battery rundown test. This time I received a “file system error” and the laptop became unresponsive. Again, rebooting seemed to solve the problem.

Samsung’s ports remain almost the same: two Thunderbolt 4 ports to the left, plus an upgraded HDMI 2.1 port that supports an 120Hz 4K display. The legacy USB-A port to the right side of the chassis is a nice touch.

Samsung Galaxy Book4 Ultra: Display

Samsung was one of the first vendors to include OLED screens, and the Book4 Ultra’s gorgeous “AMOLED 2X” OLED screen and high resolution is still a selling point, even if it’s not quite 4K. If you’re used to tapping an on-screen control, as I am, the transition from a non-touch to a touchscreen will be a mixed bag: a solid improvement in terms of convenience, but a potential smudge magnet. And with the display’s inky blacks fading into the natural blackness of the display, you’ll be loathe to mess that up.




Real life pales in comparison to the Samsung Galaxy Book4’s vivid OLED screen.



Real life pales in comparison to the Samsung Galaxy Book4’s vivid OLED screen.Mark Hachman / IDG

Real life pales in comparison to the Samsung Galaxy Book4’s vivid OLED screen.Mark Hachman / IDG


Mark Hachman / IDG

Samsung still offers a 120Hz dynamic refresh rate, meaning that you’ll see increased smoothness as you move a mouse cursor around the screen. Although Samsung could theoretically include an S Pen for drawing capabilities, it doesn’t. Since the screen only reclines to the normal 30-35 degrees or so off of the horizontal, it would be difficult to ink anyway.

The Book4 Ultra offers several display modes, from a default Auto mode, to an AMOLED Profile mode, plus dedicated modes for AdobeRGB, P3, and sRGB. There are adaptive color options, HDR+ to adjust for HDR viewing and a “Vision Booster” to adjust color and lighting in bright conditions.




The color gamut of the Samsung Galaxy Book4 Ultra color gamut display.



The color gamut of the Samsung Galaxy Book4 Ultra color gamut display.Mark Hachman / IDG

The color gamut of the Samsung Galaxy Book4 Ultra color gamut display.Mark Hachman / IDG


Mark Hachman / IDG

I sampled the color gamut of both the Auto and AMOLED Profile mode using our colorimeter, but the results were the same, percentage-wise.

I’m not convinced that Vision Booster really does anything, as toggling it on and off while outside didn’t really have a noticeable effect. But the 390 nits of maximum brightness the laptop puts out, complemented by the OLED screen’s infinite contrast and possibly Samsung’s algorithms — all that combines to make the Book4 viable to work outdoors. I used it over a late lunch (1:30 PM) on a bright, sunny California spring day and web browsing and typing were a little uncomfortable, but not really.




This isn’t quite full sun, as the screen provides its own shade. But the Samsung Galaxy Book4 Ultra holds its own.



This isn’t quite full sun, as the screen provides its own shade. But the Samsung Galaxy Book4 Ultra holds its own.Mark Hachman / IDG

This isn’t quite full sun, as the screen provides its own shade. But the Samsung Galaxy Book4 Ultra holds its own.Mark Hachman / IDG


Mark Hachman / IDG

Working outside usually cuts battery life by a bunch, as the notebook needs to put out a ton of light to overcome the sun. But with such a lengthy battery life, you might want to try it.

Samsung Galaxy Book4 Ultra: Keyboard

I dislike Samsung Galaxy Book keyboards, but I can’t deny they’re functional. The key travel is poor, and the keys bottom out quickly, even with or slightly below the keyboard tray. Yet I can type with the keyboard just as quickly as with other laptops. (I typically write most if not all of a laptop review on the laptop itself.)




The keyboard of the Samsung Galaxy Book4 Ultra.



The keyboard of the Samsung Galaxy Book4 Ultra.Mark Hachman / IDG

The keyboard of the Samsung Galaxy Book4 Ultra.Mark Hachman / IDG


Mark Hachman / IDG

The Galaxy Book4 Ultra keyboard is essentially unchanged from the prior generation. Samsung provides a full-sized keyboard with a narrow number pad to the right, shrinking the Enter key and slightly rearranging the associated operations keys to get it all to fit. As a left-handed gamer, I use the number pad as the equivalent of the WASD keys, and they’re a little cramped for my taste. Placing the + key to the top means that I have to consciously think about its orientation for a bit, too.

The Book4 Ultra’s function keys still pop up small explanations on the screen itself, which is handy. There are four levels of backlighting — again, spelled out on the screen — and you can adjust the speed of the laptop via the function keys, too. Note that this adjusts the speed via the Samsung Settings app, rather than the Windows 11 performance slider.




The Samsung Galaxy Book4 Ultra is one of the few laptops that prefers a fingerprint reader (hidden within the power button) to a depth camera. It worked just fine.



The Samsung Galaxy Book4 Ultra is one of the few laptops that prefers a fingerprint reader (hidden within the power button) to a depth camera. It worked just fine.Mark Hachman / IDG

The Samsung Galaxy Book4 Ultra is one of the few laptops that prefers a fingerprint reader (hidden within the power button) to a depth camera. It worked just fine.Mark Hachman / IDG


Mark Hachman / IDG

Samsung’s Galaxy Book4 Ultra trackpad is as enormous as ever, probably way bigger than it needs to be but certainly large, comfortable and responsive.

Samsung Galaxy Book4 Ultra: Audio and webcam

Samsung’s Galaxy Book4 Ultra sounds very good, period. Separate, powerful woofers and tweeters sound great by default, boosted by Samsung subsidiary and Harman company AKG. Somewhat ironically, the Dolby Atmos audio enhancement that Samsung also includes doesn’t improve the experience by that much, as it does on other laptops. (Dolby Atmos is toggled off by default, and can be turned on via the Samsung Settings app.)

Again, both the native and default audio sound very good up and down the audio range. Turning on Dolby Atmos noticeably increases the volume, and generates a bit richer all-around sound. But the Book4’s speakers can fill a room, and these are speakers that you’ll enjoy listening to. Plopping the Book4 directly beneath my computer monitor essentially makes Samsung’s laptop a sound bar, a feat I’ve only noticed with Microsoft’s Surface Laptop Studio lineup.




There’s a lengthy speaker grille on either side of the Samsung Galaxy Book4 Ultra. Air is pulled into the laptop from the vents in the middle.



There’s a lengthy speaker grille on either side of the Samsung Galaxy Book4 Ultra. Air is pulled into the laptop from the vents in the middle.Mark Hachman / IDG

There’s a lengthy speaker grille on either side of the Samsung Galaxy Book4 Ultra. Air is pulled into the laptop from the vents in the middle.Mark Hachman / IDG


Mark Hachman / IDG

Samsung’s noise-cancelling mics are okay. I tested them by playing a rock ballad on my phone, set off to one side. Samsung’s algorithms were interesting: first locking on the song, then on a narrow, compressed version of my voice as I started speaking, and then a more natural capture. But it then refused to record the song at all, as it should.

Samsung’s webcam captures images and video in 1080p, which looks a little behind the times as rivals quietly move to 1200p and even higher. Like other Intel Core Ultra-based laptops, the Galaxy Book4 Ultra includes Windows Studio Effects, which uses the Core Ultra processor’s NPU to apply AI filtering to the webcam: panning and zooming, applying a blur effect to the background, and using a technique to make it look like you’re looking at the webcam at all times.

I was a little surprised to see a 1080p webcam being used for Windows Studio Effects’ pan and zoom features, as some webcams just “trim” the extra pixels to create the panning effect. It’s not clear whether the Book4 does. But it does a very good job tracking your face and applying the gaze effect. It just gets a bit aggressive on the background blur.

Otherwise, the webcam did a pretty decent job of capturing my face. Here’s a representative image of the Galaxy Book5’s webcam.








Mark Hachman / IDG

Mark Hachman / IDG


Mark Hachman / IDG

Samsung Galaxy Book4 Ultra: Samsung’s connective software

Most consumers identify with the Apple ecosystem, the Google ecosystem, or the Windows ecosystem. Samsung has always insisted that its Galaxy ecosystem is a viable alternative, and it has the Galaxy Book laptop lineup, the Tab tablets, Galaxy S-series phones, the Galaxy Watch, and even a range of appliances that can all connect to each other, in a manner of speaking.

Within the Book4 Ultra, the primary utility software is Samsung Settings, which can be used to adjust the display, turn on Dolby Atmos audio enhancements, and even what you might call “dumb laptop tricks” like automatically booting when you lift the lid. It’s a very simple but extremely functional app. It also complements Samsung Update, which is inexplicably poky (can we get rid of the loading wheel icon?) but serves as a front door to some driver updates.

Samsung wants you to log in using your Samsung account, so you can participate in things like backing up data using the Samsung Cloud Assistant app. Load up the Galaxy Book Experience app, and you have access to Samsung’s version of popular apps (its own Screen Recorder, for example). Samsung’s Smart Switch helps you transfer data from an old PC to the new Book4 Ultra. And, if you’ve owned a Samsung Galaxy phone, you’ll see PC-based versions of apps like Gallery, for seeing your photos.

There’s nothing new here, compared to prior generations of Books. And most Samsung apps reproduce dedicated Windows apps. But there are still ways to boost productivity through connectivity apps like Second Screen and Flow, which we explored in detail in a separate story. These use devices like the Galaxy S23 and S24 phones, the Galaxy Tab, and more, to facilitate sharing and collaboration.

There still are over fifteen Samsung utilities alone, plus apps like Intel Unison and Microsoft’s Windows apps. The larger SSDs mean that these apps don’t take up a whole lot of space, relatively. But only a few are truly useful.

Samsung Galaxy Book4 Ultra: Performance

Aside from the startup glitches noted above, the Samsung Galaxy Book4 Ultra was generally snappy, responsive, and stable — but you’d expect that of a modern premium laptop with 32GB of memory and a GeForce RTX GPU.

Samsung’s Galaxy Book4 Ultra straddles creator-class workloads and true gamer capabilities, and some of it depends on the model that you buy.

Nvidia tends to reserve the RTX 4050 and 4060 for lower-end, creator-class laptops; the RTX 4070, 4080, and 4090 are generally considered more appropriate for gaming, as well as creative work. While the 4050 and the 4070 otherwise offer similar features, Nvidia’s specifications show that they differ considerably in both memory width and CUDA core count, which will affect gaming performance, and possibly battery life, too. Some of that is offset by Intel’s Core Ultra (Meteor Lake) architecture, which consumes far less power than in prior generations.

Put another way, the Samsung Galaxy Book4 Ultra isn’t a “gaming” laptop, but a “gaming-capable” laptop. Content creation and consumption is its primary purpose. (That’s not to say that you can’t treat a gaming laptop as your primary laptop, as we’ve argued recently.)

For that reason, I’m comparing the $2,999 16-inch Samsung Galaxy Book4 Ultra to three other creator-class laptops: the $1,899 14-inch Lenovo Slim Pro 9, the $3,299 14-inch Microsoft Surface Laptop Studio 2, and the $3,399 16-inch Dell XPS 16 9640. I’ve also included the $2,399 16-inch Samsung Galaxy Book3 Ultra for a gen-over-gen comparison, highlighted in yellow. (At press time, the Book3 was on sale for $1,436 at Amazon.) Finally, I’ve included two gaming notebooks, the $4,299 16-inch Razer Blade 16 (2024) and the $1,849 16-inch Alienware m16 R2, just to see how close the Book4 can hit.

We test laptops using a combination of synthetic and practical benchmarks.

PCMark 10 is quite useful as an overall measure of performance, since it’s a benchmark suite of everything from app startup times, web browsing, videoconferencing, CAD tools, and more. We generally expect PCMark 10 scores to be well in line if not surpass the competition.