Galaxy Z Fold 6 vs Galaxy Z Fold 4: Here's what’s changing and what's staying the same

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Galaxy Z Fold 6 vs Galaxy Z Fold 4

Intro


Samsung's Galaxy Z Fold 6 is now official, albeit not reinventing the formula behind the company's iconic foldable. In fact, the Galaxy Z Fold 6 improves minimally over its past two versions, the Galaxy Z Fold 5 and Galaxy Z Fold 4. The latter is quite an intriguing device that's still very capable, but starting to get ever-so-slightly old. 

Is the Galaxy Z Fold 6 the next logical upgrade step for Galaxy Z Fold 4 owners?

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Galaxy Z Fold 6 vs Galaxy S24 Ultra differences:



Table of Contents:

Design and Size

Foldable evolution

Well, there are a few notable differences between the Galaxy Z Fold 6 and the Galaxy Z Fold 4.

The Galaxy Z Fold 6 doesn't utilize titanium, but Armor Aluminum once again. However, Samsung has found a way to massively reduce the overall weight: the new phone weighs just 239gr, a substantial difference with the Galaxy Z Fold 4, which could work out a hole in your pocket with its 263gr weight!

Not only that, but the size and aspect ratio have also slightly changed: the Galaxy Z Fold 6 is now boxier and has a slightly wider external screen, which helps its overall utility. The Galaxy Z Fold 4, on the other hand, is taller, narrower, and heavier, so if ergonomics are important, the new phone surely has the edge. 

Both the Galaxy Z Fold 6 and the Galaxy Z Fold 4 will support S Pen stylus input, but neither phone has a silo to slot the accessory. Just have in mind that the Galaxy Z Fold styluses are special: they have softer tips that can't scratch the inner displays. 

Foldable phones are usually not dustproof, but they can protect against water. The Galaxy Z Fold 6 is IP48-rated, which means that it's protected against dust larger than 1mm and also waterproof in up to 1.5 meters for up to 30 minutes without worrying about damage. The Galaxy Z Fold 4 is just waterproof, no dust resistance. 

Display Differences


Both the Galaxy Z Fold 6 and Z Fold 4 come with 7.6-inch internal OLED displays that can go up to 120Hz, but that's when most similarities end. 

The Galaxy Z Fold 6 inner screen comes along with thinner bezels and ever-so-slightly boxier aspect ratio: 20.9:18 versus the Z Fold 4's 21.6:18. While the older flagship can only go to 1,200 nits of brightness, the Galaxy Z Fold 6 can go up to 2,600 nits of brightness, and get this: the cover screen can reach that number, too! 

Sadly, the two devices have another thing in common––a pronounced crease in the middle. 

With the cover screens, the situation is a bit different. The Galaxy Z Fold 6 accommodates a 6.3-inch OLED screen whereas the Z Fold 4 has a 6.2-inch one, with thicker bezels. 

Display Measurements:



Above, you can see our in-house display lab measurements that outline the exact numbers for max brightness, as well as other display characteristics for both phones. It's quite the change in peak brightness indeed!

Performance and Software

Snapdragons for the masses

The Galaxy Z Fold 6 features the latest and greatest Qualcomm chip right now, the Qualcomm Snapdragon 8 Gen 3. Samsung already employs it on the Galaxy S24 family, and it's proved itself to be quite the efficient performer, which not only crunches through any task, but also delivers excellent battery endurance.

Meanwhile, the Galaxy Z Fold 4 is powered by the Qualcomm Snapdragon 8+ Gen 1 chip. There's a significant difference between the two platforms, with the newer phone being way better-specc'd:


Logically, all of this translates to a much better performance on the newer chip, which will certainly beat its predecessor in overall performance and efficiency. The graphics processing on the latest Snapdragon is particularly impressive, even surpassing Apple's latest A-series chips.

Performance Benchmarks:


Geekbench 6
SingleHigher is better
Samsung Galaxy Z Fold 62252
Samsung Galaxy Z Fold 41388
Geekbench 6
MultiHigher is better
Samsung Galaxy Z Fold 66796
Samsung Galaxy Z Fold 43950
3DMark Extreme(High)Higher is better
Samsung Galaxy Z Fold 64785
Samsung Galaxy Z Fold 42105
3DMark
Extreme(Low)Higher is better
Samsung Galaxy Z Fold 62692
Samsung Galaxy Z Fold 41524

Samsung has also put 12GB of RAM on the Galaxy Z Fold 6 to accommodate all of its AI needs. 256GB of storage are available in the base version, but you can also get it with 512GB and 1TB of storage as well. The same RAM and memory setup applies to the older phone, too, so we're once again at an impasse. 

One of the major differences between the two phones is the AI on the new phone. Samsung has a full suite of features to entice potential buyers, like Note Assist, Photo Assist, Interpreter, Google Gemini, Circle to Search, and you can learn more about them in our overview of the new Galaxy AI features for foldables

What's especially intriguing about the Galaxy Z Fold 6, however, is its long, seven-year software support that beats the Galaxy Z Fold 4's four year of software support, two of which have already passed. The Fold 6 will receive major Android updates and security patches until the end of the decade, and slightly beyond. 

Camera

Impasse

The Galaxy Z Fold 6 comes with a 50MP main camera, a 10MP telephoto with 3X optical zoom, and a 12MP ultra-wide camera. If you think you're having a déjà vu, that's because a similar setup has been used on the Samsung Galaxy Z Fold 4 and the Galaxy Z Fold 5.

As usual, we expect many improvements on the software side, including image-processing optimizations and other improvements, all despite the lack of hardware changes.

That said, while foldables have never been all about the camera performance, all Galaxy Z Fold devices have had more than decent cameras, capable of delivering more than decent results. We have no reason to believe the Galaxy Z Fold 6 will be any different.

Battery Life and Charging

No changes once again

Despite the rumors for a larger battery, Samsung has once again put a 4,400mAh battery inside the Galaxy Z Fold 6. However, thanks to the more efficient chip, we suspect the Galaxy Z Fold 6 to have a better mileage than its predecessor, despite the tank being of the same capacity. 

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Back in the day, the Galaxy Z Fold 4 fared rather well. It achieved a pretty solid result of 12 hours and 43 minutes in our custom browsing test, which emulates a standardized browsing experience. The video streaming test result was also pretty decent at 8 hours and 47 minutes. 

However, in our 3D gaming test that's designed to emulate a regular gaming experience, the Galaxy Z Fold 4 hit just 4 hours and 28 minutes, revealing there's much room for improvement. 

Charging-wise, both the Galaxy Z Fold 6 and Galaxy Z Fold 4 support 25W wired charging. Wireless and reverse wireless charging are part of both phones' specs sheets, too. 

Specs Comparison


The essential Galaxy Z Fold 6 vs Galaxy Z Fold 4 specs comparison is available right below. This is still based on Galaxy Z Fold 6 specs, have that in mind.


Summary


So, it appears that the Galaxy Z Fold 6 will improve on many of the aspects of the Galaxy Z Fold 4. A revamped design, improved display, better performance and battery life is what would make the Galaxy Z Fold 6 the logically better pick over the Galaxy Z Fold 4. And that's normal––evolution goes only one way.  

Galaxy Z Fold 6 starts at $1,899, so a $100 price hike in comparison with the usual Galaxy Z Fold price. 

Overall, we'd probably have to recommend the Galaxy Z Fold 6, but we'd reserve our final judgement for the complete review of the device.

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