For years, “thin smartphone” was almost a warning label. Sure, they looked slick, but you usually had to accept weak batteries, lower performance, or stripped-down cameras. In 2025, that story has changed. This is the year manufacturers finally proved that slim can also mean powerful, durable, and reliable.
Here’s a closer look at the six standouts that define the new age of thin phones.
iPhone 17 Air: Apple’s Skinniest iPhone Yet
The 6.5-inch OLED panel supports 120Hz ProMotion and peaks at 3000 nits outdoors—bright enough to stay visible on a summer day in Athens or Miami. Both sides are covered with Ceramic Shield 2, so while it feels delicate, it isn’t fragile.
Inside sits the A19 Pro chip, a 3nm powerhouse with a 6-core CPU and 5-core GPU. Apple paired it with the N1 wireless chip for Wi-Fi 7 and Bluetooth 6, and a new modem that’s both faster and more energy-efficient.
The camera bump is neatly carved into Apple’s plateau design, housing a 48MP Fusion main lens and 12MP telephoto. On the front, the 18MP Center Stage camera can record stabilized 4K HDR while also letting you capture from both lenses at once.
It’s eSIM-only worldwide, runs iOS 26, and still promises 27 hours of video playback. In short: a supermodel build with athlete stamina.
Samsung Galaxy S25 Edge: Thin, but Not Fragile
Samsung answered with the Galaxy S25 Edge, which trims down to 5.8mm and weighs just 163g. It’s lighter than many mid-range phones yet clearly built for power users.
The display is a 6.7-inch QHD+ AMOLED with a silky adaptive refresh rate from 1Hz to 120Hz, perfect for both reading articles and playing Genshin Impact. Samsung also swapped in Gorilla Glass Ceramic 2, so everyday scratches are less of a concern.
Performance runs on the Snapdragon 8 Elite for Galaxy, with a larger vapor chamber to keep heat under control. That’s good news for gamers.
Cameras are another highlight: a 200MP main sensor with major low-light improvements, plus a 12MP ultra-wide that doubles as a macro shooter. On the front, a 12MP sensor takes care of selfies in 4K.
Software support is equally reassuring. The phone ships with Android 15 and One UI 7, and Samsung now guarantees seven years of OS and security updates. For anyone tired of phones aging too quickly, that’s a big win.
Tecno Spark Slim: The Surprise Lightweight
Under the hood, the phone runs on a MediaTek Helio G200 chipset, coupled with 8-12 GB RAM and 256GB internal storage. A 50MP rear camera captures vivid detail, while the 13MP front camera handles selfies and video calls. The device also brings in useful extras: IP64 dust and splash resistance, dual speakers, and the “Mood Light” LED notification design.
Battery life punches well above its weight. Spark Slim houses a 5,160 mAh battery with 45W fast wired charging, plus 10W reverse wired charging. For software, it runs Android 15 with HiOS 15, which adds AI-based enhancements and thoughtful usability features.
Oppo Find N5: A Foldable That Doesn’t Feel Bulky
It offers two displays: an 8.12-inch 2K AMOLED inside and a 6.62-inch FHD+ screen outside, both at 120Hz and both supporting stylus input. The hinge is another story—Oppo engineered a titanium flexion hinge that’s thinner yet sturdier than before, certified for 100,000 folds.
Power comes from the Snapdragon 8 Elite, with 16GB RAM and half a terabyte of storage. Running ColorOS 15 (Android 15), it introduces O+ Connect, letting Mac users control the phone remotely.
The camera setup is high-end: 50MP main, 8MP ultra-wide, and a 50MP 3x telephoto periscope. Battery life isn’t sacrificed either, thanks to a 5600mAh silicon-carbon pack with 80W wired and 50W wireless charging.
Samsung Galaxy Z Fold 7: Refinement Over Reinvention
The Z Fold 7 doesn’t shout “new category” like its predecessors—it refines what already worked. At 215g and 4.2mm unfolded, it’s thinner and lighter than any earlier Fold.
Displays remain the star: an 8-inch QXGA+ AMOLED inside, plus a 6.5-inch outer AMOLED, both running at 120Hz. Gorilla Glass Ceramic 2 adds toughness to the cover screen.
Performance again comes from the Snapdragon 8 Elite for Galaxy, paired with up to 16GB RAM and 1TB storage. Cameras include a 200MP primary shooter, plus 12MP ultra-wide and 10MP telephoto.
It launches with Android 16 and One UI 8, which bring Photo Assist, Gemini Live, and even post-quantum cryptography for security. The 4400mAh battery supports both wireless and reverse wireless charging.
Infinix HOT 60 Pro+: Slimmest 3D Curved Phone Ever
It stretches a 6.82-inch 1.5K AMOLED with 120Hz refresh and 2800 nits brightness across that slim frame. Despite its design, it’s IP64 rated against dust and splashes.
The phone runs on the Dimensity 8300 Ultra, with 12GB RAM and 256GB storage. XOS 15 (Android 15) brings AI enhancements for multitasking and gaming.
Cameras are impressive too: a 108MP main, 13MP ultra-wide, and a 32MP selfie camera. Night photography has been tuned with AI processing, making it more capable than you’d expect from a phone this thin.
And yes, there’s room for a 5000mAh battery with 65W fast charging—a rare achievement in such a slim body.
Final Word
What makes 2025 exciting isn’t just that these phones are thin. It’s that they’ve proven thin can mean tough, fast, and reliable. Apple and Samsung refined their flagships, Oppo pushed foldables further, Tecno brought creativity to the mid-range, and Infinix set a new world record for slim design.
For once, buying a sleek phone doesn’t feel like a trade-off. It feels like the future.