ThinBorne vs. Arc Pulse for the iPhone 18 Pro – Which minimalist case to go for?

The best minimalist iPhone case isn't always the thinnest or simplest. It's the one that protects the areas you care about without compromising functionality and how your phone feels in your hand.

That's why comparing ThinBorne and Arc Pulse for the iPhone 18 Pro is interesting. Both aim to preserve the phone's original design, but they approach protection differently. ThinBorne uses a lightweight aramid fiber shell that covers the back, while Arc Pulse uses separate metal components to protect selected impact zones.

If you're shopping for an iPhone 18 Pro case, this comparison breaks down the differences in design, materials, protection, pricing, and everyday usability. We'll also look at available customer feedback and where each case makes compromises.

According to a 2024 YouGov survey, 14% of U.S. cellphone owners don't own a compatible phone case, suggesting that going caseless remains a preference for some users.

ThinBorne and Arc Pulse cater to this minimalist preference differently. ThinBorne offers a slim rear shell, while Arc Pulse protects selected impact zones and leaves most of the phone exposed. Here's how they compare.

Not everyone needs the same type of phone protection. Some users care more about scratches and comfortable handling, while others prioritize their device's appearance.

ThinBorne is designed for people who dislike bulky phone cases but still want a layer between their phone and everyday surfaces. Its 600D aramid fiber construction adds a textured grip while keeping the profile close to the original device. At about 0.90 mm thick, it prioritizes comfort and scratch protection over heavy-duty impact resistance.

Best use cases:

• Daily commuting and office use.

• Carrying a phone in pockets or small bags.

• Using MagSafe chargers, mounts, and wallets.

• Protecting the back from everyday contact with surfaces.

• Maintaining a lightweight, understated appearance.

Arc Pulse approaches minimalist protection by covering selected high-impact areas instead of surrounding the entire phone. Its metal components are designed to fit around the top and bottom sections, leaving most of the original finish visible. The design prioritizes edge and corner protection while retaining direct contact with the phone's back and sides.

Best use cases:

• Users who prefer the look of an uncovered iPhone.

• People who want minimal material around their device.

• Those who appreciate precision-machined metal accessories.

• Users comfortable with exposed back surfaces.

• Anyone who prefers an unconventional case design.

If you regularly place your phone on desks or other surfaces, ThinBorne's back coverage offers a practical advantage. If you want to keep the original phone finish and protect only key impact points, Arc Pulse may be more appealing.

Neither option is automatically better. They simply make different compromises.

Customer feedback shows that both cases appeal to iPhone owners who prefer minimalist protection. ThinBorne earns praise for its lightweight build, strong MagSafe connection, and slim profile, while Arc Pulse attracts buyers who want to preserve their iPhone's original look.

Official brand websites provide useful insights into customer experiences, particularly when reviews are associated with specific iPhone models.

On ThinBorne's official website, iPhone 17 Pro customers highlight the case's precise fit, lightweight construction, premium build quality, and strong MagSafe magnets. Feedback also emphasizes how the slim design preserves the phone's original feel without adding unnecessary bulk.

Meanwhile, Arc Pulse's official website showcases its distinctive metal construction and minimalist approach, which leaves much of the iPhone's original design visible. However, comparable model-specific customer reviews could not be verified.

Since the available ThinBorne feedback concerns an earlier iPhone model, these experiences offer insight into the brand's overall design and quality rather than confirmed customer ratings for the iPhone 18 Pro.

Retail listings can help buyers compare prices and product availability, but model-specific reviews are essential.

For ThinBorne, customer feedback from iPhone owners consistently highlights the appeal of lightweight aramid fiber construction and a close-fitting design.

Arc Pulse attracts buyers interested in metal accessories that preserve the phone's original appearance. However, available feedback suggests checking each model's fit and compatibility before purchasing.

Comparable, verified customer ratings for the iPhone 18 Pro on Amazon and eBay could not be found.

Reddit offers more detailed firsthand experiences from iPhone users.

In a ThinBorne iPhone Air review, an owner praised the case for adding minimal weight, keeping buttons and ports easy to access, and providing strong MagSafe magnets after a week of use.

Another iPhone Air owner compared ThinBorne with PITAKA and found ThinBorne lighter, with slightly stronger MagSafe performance. The reviewer also appreciated the included screen protector.

For Arc Pulse, an iPhone 14 Pro Max and 15 Pro Max owner reported that the case helped protect both phones through multiple drops, although the metal components developed scratches and dents.

Meanwhile, an iPhone Air owner praised Arc Pulse's appearance and nearly caseless feel after 135 days of use but questioned its premium price and reported wear on the metal finish.

Overall, ThinBorne stands out for users who want lightweight everyday coverage, comfortable handling, and MagSafe convenience. Arc Pulse offers a more exposed design for buyers who prioritize aesthetics, though long-term feedback points to potential trade-offs in price and component wear.

Both cases fall into the premium minimalist accessory category, but they deliver value through different features. 

ThinBorne iPhone 18 Pro

$69.69

ThinBorne includes a 600D aramid fiber case, MagSafe compatibility, and a separate tempered glass protector. The brand also advertises a 180-day limited warranty and a 30-day return policy. These extras may make ThinBorne more attractive to buyers who want a complete everyday setup without purchasing a screen protector separately. 

Arc Pulse

Starts at $88.00 

Arc Pulse focuses on machined metal construction, an open-back design, and a pressure-fit installation system. Buyers should check the current US price, available finishes, and package contents before ordering. Arc Pulse may appeal more to buyers who value distinctive industrial design. ThinBorne offers a more conventional protective shell with clearly listed accessories.

The better value depends on whether you prioritize material craftsmanship, coverage, or included extras.

Both cases aim to preserve the iPhone's original proportions, but their construction changes how they perform in everyday situations.

ThinBorne: Features, Pros, and Cons

ThinBorne uses woven aramid fiber to create a thin, lightweight shell. The material keeps the case rigid without needing a thick plastic structure.

Pros

• Ultra-thin 0.90 mm construction.

• Lightweight 600D aramid fiber.

• Textured surface for better handling.

• Built-in MagSafe compatibility.

• Covers most of the phone's back.

• Includes a tempered glass protector.

Cons

• Not designed for severe drops.

• Limited front-screen edge protection.

• Less cushioning than a rugged case.

• Minimalist styling may not appeal to everyone.

• Exposed button areas.

ThinBorne is particularly suited to users who want a slim case they can keep on their phone throughout the day.

Arc Pulse: Features, Pros, and Cons

Arc Pulse uses metal components positioned around selected impact zones. This gives the phone a distinctive appearance without adding a conventional back panel.

Pros

• Leaves most of the original phone visible.

• Premium aluminum construction.

• Lightweight, open-back design.

• Focuses protection on selected corners and edges.

• Preserves access to controls and ports.

• Distinctive industrial appearance.

Cons

• Most of the back remains exposed.

• Less protection against direct surface scratches.

• Metal construction may feel different from softer case materials.

• Wireless charging support does not guarantee compatibility with MagSafe accessories.

• Limited coverage compared with fully enclosed cases.

• Exact package contents and pricing require confirmation.

Arc Pulse's construction may appeal to users who prioritize aesthetics, but its exposed surfaces are a key practical consideration.

Choosing between ThinBorne and Arc Pulse depends on how much of your iPhone you want exposed. Arc Pulse offers a nearly caseless experience with targeted protection, while ThinBorne provides a more practical balance of everyday coverage, lightweight comfort, and MagSafe convenience. If you want a thin phone case that protects your iPhone without losing its original feel, ThinBorne is worth considering. After all, minimalism isn't just about having less material around your phone. It's about keeping what matters without adding what you don't need.