Samsung’s Galaxy Z Fold 7 has just gone through a detailed teardown courtesy of JerryRigEverything’s Zack Nelson, and it’s given us a closer look at what $2000 gets you inside one of the most premium foldables on the market. The video confirms Samsung’s use of a titanium back plate under the display while also sparking debate over the phone’s thermal design. To test Samsung’s claims, Nelson used a gas torch to heat up the back plate to around 1800°C.
It resulted in a rainbow-like oxidation pattern, while the flexible mesh structure lit up with bright white sparks—both clear indicators of the metal Samsung is claiming to be using. These touches add strength and flexibility to Samsung’s foldable design. Not to mention, this is the first time the creator has successfully removed the inner folding screen while still functioning.
The different layers of the display are still fragile, which is why hard and sharp objects should still be kept away from the inner display.
Notably, this isn’t the first time Samsung has reinforced its foldables with extra support above the aluminum chassis. From the Z Fold 3 through the Z Fold 6, the company used Carbon Fiber Reinforced Plastic (CFRP). That material is lighter than titanium, but teardown videos show it was also a bit thicker, which may explain Samsung’s decision to switch.
Still, not everything in the Fold 7 impressed. Nelson highlighted a clear air gap between the aluminum mid-frame and the graphite cooling pad over the processor. Samsung did apply some thermal paste—enough for him to jokingly draw a smiley face—but the overall setup raises doubts about how well the phone can transfer heat from the chips. More surprising is that the aluminum chassis under the PCB doesn’t even include a vapor chamber, a feature that’s become standard on even mid-range phones costing a fraction of the price.
Overall, the teardown shows the Z Fold 7 as a mix of premium materials, improved repairability, and lingering concerns around cooling. With Samsung already teasing its first tri-fold, it’ll be interesting to see what that device hides inside.
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