The back glass of the iPhone 17 Pro has significantly improved durability compared to previous iPhone models, especially in real-world use scenarios. Apple has introduced a new Ceramic Shield 2 glass on both the front and back of the device, marking the first time the Ceramic Shield material protects the back glass as well. This newer glass is reported to offer up to 4 times better crack resistance and 3 times better scratch resistance on the back compared to previous iPhones, including the iPhone 16 Pro, which had a standard toughened glass back that was more prone to cracks and scratches.
This enhanced back glass is part of a new design that combines a half-glass, half-metal back with an aluminum frame replacing the previous titanium one, partly to improve cooling and reduce weight. The metal portions add rigidity and resistance to cracking in critical areas, while the Ceramic Shield glass section allows wireless charging and better signal transparency. This design innovation improves the phone's overall toughness, with Apple emphasizing that the back glass is far less likely to shatter from drops than earlier all-glass back designs.
In real-world use, reviewers and users have noted that while the new glass is more durable, it is not fully indestructible. There have been concerns that the more reflective and glossy finish on the back can be susceptible to scratches, especially on the camera block area that does not always get full protection from cases. Some users fear scratches and minor cracks may appear with regular handling or accidental drops but acknowledge that using a case can mitigate most risks. However, many cases for this model seem to leave the camera block exposed, increasing the risk of surface damage there.
The proven scratch resistance and drop performance come from the multi-layer construction of the Ceramic Shield 2 glass and a new nano-scale anti-reflective coating that also helps reduce glare and keep the surface clearer in harsh outdoor lighting. This coating addresses the common problem of micro-scratches and smudges accumulating over time, helping the phone's back retain its original look longer, even under heavy daily use.
Additional durability features include an IP68 water resistance rating, which protects the device from spills, splashes, and submersion up to 6 meters for 30 minutes, complementing the toughness of the glass back and aluminum body. Apple's design aims not just at breaking resistance but also long-term durability by facilitating easier battery repair and encouraging longer device lifespans via sustainability efforts.
Users of previous iPhone models with all-glass backs have reported that back glass can be one of the most fragile parts of the phone, susceptible to cracking and shattering even with cases and moderate drops, based on user experiences with the iPhone 15 Pro Max and earlier. The 17 Pro addresses many of these issues with its reinforced glass and structural design, making the back glass more resilient in real drops and everyday stresses encountered during typical smartphone use.
In summary, the iPhone 17 Pro's back glass durability in real-world use is a marked improvement over previous generations, especially the iPhone 16 Pro. The incorporation of Ceramic Shield 2 glass on the back, combined with a metal frame design, offers enhanced crack and scratch resistance. While not completely impervious to damage, the new design strikes a good balance of ruggedness and premium aesthetics, with additional coatings helping to maintain long-term clarity and reduced glare. Protective cases are still recommended for maximum protection, especially for the camera area, but everyday drops and impacts are less likely to result in catastrophic back glass damage than before.