Vivo X Fold 3 Pro teardown reveals carbon fiber hinge, dual stack motherboard and split battery

The Vivo X Fold 3 Pro has taken the foldable phone segment by storm, not just because of its features but also because of its ultra-thin profile. But how did Vivo achieve this engineering feat? Thankfully, the folks over at WekiHome took the phone apart themselves and revealed its inner secrets in a recent teardown video.

The motherboard features a dual-stack layout to accommodate the triple-camera setupAfter removing the SIM card slot, heating it and prying it open with tools, the back cover of the phone came off. Although thin, it is made from reinforced fiber composite material, durability ensuring without adding unnecessary bulk. Peeling off this layer reveals the other side of the phone, which is mainly a large piece of copper foil.

It acts as a thermal conductor, keeping the display panel cool even during heavy use. Underneath it, we find the second-generation Qualcomm ultrasonic fingerprint scanner for secure unlocking. The motherboard journey continues with this motherboard, a marvel of compact design.

It uses a dual-stack layout to neatly house the triple-camera system. But that’s not all! This clever design also integrates a unique plastic cover that not only protects the camera but also serves as a functional hub for the flash cable, microphone, ambient light sensor, and laser focus module. The teardown even provides close-ups of these camera components, along with sample photos to pique our curiosity about their image quality.Next, let’s take a closer look at the power source of the phone—the motherboard. Here, the Snapdragon 8 Gen 3 chip takes center stage, backed by Samsung’s LPDDR5X RAM and UFS 4.0 storage performance.

Vivo’s own V3 imaging chip was also unveiled. But keeping all that processing power from overheating is an important task entrusted to the copper vapor chambers located beneath the motherboard. We also took a closer look at the speaker, microphone, and vibration motor. Also on display is a dual-cell 5,700mAh silicon anode Vivo X Fold 3 Pro battery, cleverly split into two 2,850mAh Vivo X Fold 3 Pro cells for optimal space utilization. Finally, the teardown ends with the highlight being revealed – the lightweight carbon fiber hinge. The hinge weighs an impressive 15 grams and is an important factor in the phone’s ultra-thin design.

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