Oneplus Open Vs Samsung Galaxy Z Fold 5 Durability Comparison

Foldable smartphones have evolved from experimental gadgets to serious contenders in the premium smartphone market. With that evolution comes increased scrutiny—not just on features or software, but on one of the most critical aspects of any device: durability. The OnePlus Open and the Samsung Galaxy Z Fold 5 represent two distinct design philosophies in the foldable space. While both promise flagship-level performance and innovative folding mechanisms, their long-term resilience under daily use varies in meaningful ways. This deep dive compares their build quality, hinge systems, screen protection, water resistance, and real-world endurance to help you decide which device is better built to last.

Hinge Design and Mechanical Longevity

The hinge is the heart of any foldable phone—its engineering directly impacts how well the device withstands repeated opening and closing. A poorly designed hinge can lead to creaking, misalignment, or even structural failure over time.

The Samsung Galaxy Z Fold 5 uses an upgraded version of its signature \"ultra-thin\" dual-rail hinge system. Samsung has refined this mechanism across multiple generations, and by the fifth iteration, it's among the most reliable in the industry. The hinge allows for a tight closure with minimal gap when folded and supports multi-angle positioning (Flex Mode), which lets the phone stand on its own at various angles. Samsung claims the hinge is rated for over 200,000 folds—equivalent to about five years of average use (100 opens/closes per day).

In contrast, the OnePlus Open introduces a completely new hinge design called the “Serpentine Hinge.” It’s engineered to eliminate the central crease gap found in many foldables. When closed, the OnePlus Open sits flush, giving it a sleeker profile and improved dust resistance. OnePlus also claims a 200,000-fold lifespan, aligning with Samsung’s benchmark. However, early teardowns suggest the hinge uses fewer moving parts than Samsung’s, potentially reducing points of mechanical stress.

“Fewer components in a hinge don’t always mean more durable—but if properly engineered, they reduce wear points and improve longevity.” — David Kim, Senior Hardware Analyst at MobileBuild Insights

While both manufacturers cite similar durability ratings, real-world feedback indicates that the Galaxy Z Fold 5’s hinge has proven itself over time due to Samsung’s iterative improvements. The OnePlus Open, though impressively smooth and quiet in operation, lacks the long-term track record. For users prioritizing proven reliability, Samsung holds a slight edge based on historical data.

Tip: Avoid applying lateral pressure on the hinge area while opening or closing—this can misalign internal rails and accelerate wear.

Main Screen Protection and Crease Depth

The inner foldable display is the most vulnerable component of any foldable phone. Both the OnePlus Open and Galaxy Z Fold 5 use ultra-thin glass (UTG) over plastic OLED layers, but their implementation differs significantly.

Samsung’s Galaxy Z Fold 5 features a second-generation UTG with improved scratch resistance and a slightly shallower crease than its predecessor. However, the crease remains visible and palpable. Independent lab tests show that after 100,000 folds, micro-cracks begin to form along the fold line, especially when exposed to dust particles. Samsung mitigates this with a protective polymer layer beneath the UTG, but it’s not immune to long-term fatigue.

The OnePlus Open boasts what many reviewers call the “shallowest crease” in any production foldable. This is achieved through precise alignment of the hinge and screen tensioning system. In side-by-side comparisons, the crease is barely noticeable during media consumption. More importantly, OnePlus applies a proprietary anti-abrasion coating that resists fine scratches from everyday debris like sand or keys in pockets.

However, neither device includes a factory-applied screen protector for the inner display—an omission that increases risk. Third-party protectors exist, but improper installation can damage the sensitive foldable surface.

Dust and Particle Resistance

One often-overlooked factor in screen durability is particulate intrusion. Tiny grains of sand or lint caught in the hinge can scratch the inner screen every time the phone folds. Samsung has improved sealing around the spine with brush-like barriers, but gaps remain at the top and bottom rails.

OnePlus takes a different approach: the Serpentine Hinge compresses tightly when closed, minimizing openings where debris can enter. In controlled dust chamber tests, the OnePlus Open allowed less particulate ingress than the Z Fold 5. This tighter seal contributes to better long-term screen preservation, especially in urban or outdoor environments.

Water and Environmental Resistance

Water resistance is a major differentiator between these two devices—and a significant advantage for Samsung.

The Galaxy Z Fold 5 carries an IPX8 rating, meaning it can survive immersion in up to 1.5 meters of freshwater for 30 minutes. This doesn’t cover dust (hence IPX8 instead of IP68), but it does offer peace of mind against spills, rain, or accidental drops in sinks or toilets. Samsung achieves this through strategic gaskets and sealed ports, despite the mechanical complexity of the hinge.

In stark contrast, the OnePlus Open has no official IP rating. While OnePlus claims the device includes some moisture-resistant materials and nano-coatings, there’s no guarantee against liquid exposure. Dropping the OnePlus Open in water could result in permanent damage, voiding warranty coverage.

This lack of certification is surprising given OnePlus’s positioning as a premium brand. It suggests a trade-off: perhaps the slimmer hinge design couldn’t accommodate full waterproofing without compromising thickness or flexibility.

“IP ratings matter more than people think. A single coffee spill inside the hinge mechanism can corrode contacts and disable sensors.” — Lena Torres, Repair Technician at FixHub Labs

Environmental Stress Testing Summary

Feature	OnePlus Open	Samsung Galaxy Z Fold 5
Water Resistance	No official rating (nano-coating only)	IPX8 (up to 1.5m for 30 mins)
Dust Sealing	Improved hinge compression reduces intake	Brush seals; moderate effectiveness
Operating Temp Range	-20°C to 45°C	-25°C to 40°C
Drop Tolerance (concrete, 1m)	Moderate (frame absorbs impact)	Moderate (reinforced corners)

External Displays and Build Materials

The outer cover screens are frequently used and prone to drops and scratches. How each phone handles this matters for overall durability.

The OnePlus Open features a large 3.8-inch external display made with Corning Gorilla Glass Victus 2—a material known for high scratch and drop resistance. This is a major upgrade over previous foldables that used softer glass. The larger cover screen reduces the need to unfold the device constantly, lowering wear on the main display.

The Galaxy Z Fold 5 uses a smaller 3.4-inch cover display protected by Gorilla Glass Victus 2 as well. While equally tough, its smaller size means users unfold the phone more often, increasing exposure of the fragile inner panel. Additionally, the Z Fold 5’s outer glass extends closer to the edges, making it slightly more susceptible to chipping during pocket-to-surface transitions.

Both devices use aluminum frames, but the alloys differ. The OnePlus Open employs an aerospace-grade aluminum alloy (similar to 7000 series), which is lighter and stiffer. Samsung uses a custom Armor Aluminum, optimized for dent resistance. In independent bend tests, the OnePlus frame showed marginally higher rigidity, though both resist deformation under normal conditions.

Back panels differ too: the OnePlus Open uses matte-finish glass that resists fingerprints and minor scuffs. The Galaxy Z Fold 5 offers either glossy glass or a vegan leather option. The latter feels premium but attracts oils and may degrade faster with prolonged UV exposure.

Real-World Usage Case: Field Test After Six Months

To assess long-term durability, a tech journalist conducted a field test using both devices daily for six months. No cases were used initially to simulate real user behavior, though both phones were later fitted with protective covers after minor scuffing appeared.

The Galaxy Z Fold 5 was used primarily in a corporate environment—carried in suit pockets, unfolded dozens of times per day for emails and presentations. After three months, a faint white line appeared along the inner screen crease. By month six, the line became more pronounced, and lint had accumulated near the hinge brushes. Despite this, the phone remained fully functional. The IPX8 rating proved valuable when the device was accidentally left in a rain-soaked jacket overnight—it powered on without issue the next morning.

The OnePlus Open was used in a mixed urban setting—commuting, outdoor meetings, and travel. Its flush hinge stayed remarkably clean, with almost no visible debris buildup. The shallow crease remained subtle, and the outer screen survived several drops onto pavement with only minor edge chips (no screen cracks). However, after spilling tea on the keyboard dock, liquid seeped into the charging port area. Although the phone didn’t fail immediately, corrosion signs appeared weeks later, confirming the risks of lacking formal water resistance.

Verdict: The Galaxy Z Fold 5 demonstrated superior environmental resilience, while the OnePlus Open excelled in mechanical smoothness and screen preservation—provided liquids were avoided.

Expert Maintenance Checklist for Foldable Longevity

Regardless of model, proper care extends any foldable’s life. Follow this checklist to maximize durability:

• Keep it clean: Use a soft, dry microfiber cloth to wipe both screens weekly. Avoid blowing air into the hinge, as moisture from breath can corrode contacts.
• Avoid extreme temperatures: Don’t leave the phone in direct sunlight (e.g., on car dashboards) or freezing conditions for extended periods.
• Use a case: A well-designed case protects the edges and reduces drop impact. Ensure it doesn’t interfere with folding mechanics.
• Minimize contact with abrasive surfaces: Never place the phone face-down on rough tables, gravel, or sandy areas.
• Wash hands before use: Oils and salts from skin accelerate screen degradation over time.
• Update firmware regularly: Manufacturers often release hinge calibration updates to optimize sensor performance.

Tip: Store your foldable unfolded or fully open when not in use for long periods—this relieves tension on the inner screen.

Frequently Asked Questions

Which foldable has a longer-lasting battery in terms of physical durability?

Both devices use multi-cell batteries designed to flex with the hinge. Samsung’s battery layout has been refined over four prior models, resulting in stable long-term performance. OnePlus redesigned its battery into a “T-shaped” configuration to avoid stress zones. Early data shows comparable cycle life (~80% capacity after 500 full charges), but Samsung’s track record gives it a slight reliability advantage.

Can I replace the inner screen if it gets damaged?

Yes, but it’s expensive. Samsung charges approximately $399 for inner display replacement under its service program. OnePlus does not yet publish official repair pricing in all regions, but third-party estimates range from $350–$450. Neither repair is user-serviceable.

Is the crease a durability concern or just cosmetic?

Primarily cosmetic. Modern foldable screens are engineered to tolerate the crease. However, deeper creases (like on earlier Galaxy models) create stress concentration points that may lead to pixel burn-in or micro-tears over years of use. The shallower crease on the OnePlus Open reduces this risk.

Final Verdict: Which Is More Durable?

The answer depends on your priorities. If you value **proven engineering, water resistance, and long-term support**, the Samsung Galaxy Z Fold 5 is the more durable choice. Its IPX8 rating, mature hinge design, and extensive real-world validation make it resilient in unpredictable environments.

If you prioritize **mechanical refinement, minimal crease visibility, and reduced dust accumulation**, the OnePlus Open offers compelling advantages. Its innovative hinge and superior outer display enhance daily usability and reduce certain types of wear—but the absence of water resistance is a notable compromise.

Ultimately, durability isn’t just about surviving drops or dust. It’s about consistent performance over time, resistance to environmental factors, and ease of maintenance. Samsung leads in ecosystem maturity and protection standards. OnePlus counters with bold design choices that reduce friction-based wear and improve aesthetics.

For maximum longevity, pair either device with a protective case, avoid liquid exposure (especially for the OnePlus), and maintain a regular cleaning routine. With mindful use, both can last three to four years of heavy use—longer than most traditional smartphones.

🚀 Ready to choose your next foldable? Consider your lifestyle: do you need waterproof confidence or seamless mechanics? Share your thoughts or experiences in the comments below.