Here are some of the thinnest smartphones of 2025, pushing the boundaries of sleek design without compromising performance:
🔹 Infinix HOT 60 Pro+ – 5.95 mm
The Infinix HOT 60 Pro+ features a jaw-dropping 5.95mm slim profile, weighing just 155g—and somehow, it still packs a massive 5160mAh battery inside.
🔹 Samsung Galaxy S25 Edge – 5.8 mm
Samsung launched its slimmest flagship yet in May 2025. Featuring a 6.7-inch AMOLED display, 200 MP camera, and Snapdragon 8 Elite chipset, the S25 Edge packs premium features into a titanium body just 5.8 mm thick. It’s a compelling choice for those putting design and portability first.
🔹 TECNO Spark Slim – 5.75 mm
Unveiled at MWC 2025, the Spark Slim concept showcases what engineering can achieve: 5.75 mm thin, 146 g, a 5,200 mAh battery, and a 6.78-inch AMOLED display.
Though not yet available for sale, it sets a new benchmark for sleek design without sacrificing battery life.
🔹 Apple iPhone 17 Air (Rumored) – ~5.5 mm
Expected in September 2025, leaks suggest the iPhone 17 Air will be Apple’s thinnest iPhone ever, measuring around 5.5 mm.
Despite its slim build, it could include a 6.6″ OLED display, A19 chip, and an optimized battery system, thanks to new silicon-anode tech .
🔹 Foldables: Xiaomi, Oppo & Honor
In early 2025, OPPO made history with the Find N5, officially crowned the world’s thinnest book-style foldable phone .
This sleek device not only sets a record—it redefines the future of smartphone design. 8.93 mm when folded, rivalling the thickness of a credit card. Only 4.21 mm thick when unfolded, making it marginally slimmer than any non-foldable device .
Thinness isn’t limited to traditional phones—ultra-slim foldables are making waves too:
- Xiaomi Mix Fold 4 – 4.6 mm unfolded
- Oppo Find N5 – 4.2 mm unfolded
- Honor Magic V3 – 4.4 mm unfolded
These devices blend bigger full-screen experiences with featherweight folded forms, redefining portability.
✅ Quick Comparison Table
| Device | Thickness | Notable Features |
| iPhone 17 Air (rumor) | ~5.5 mm | Ultra-thin Apple device with OLED + A19 + AI |
| TECNO Spark Slim (concept) | 5.75 mm | 5,200 mAh battery + AMOLED in concept form |
| Samsung Galaxy S25 Edge | 5.8 mm | Premium flagship design, 200MP camera |
| Mix Fold 4 / Find N5 / Magic V3 (foldables) | 4.2–4.6 mm | Ultra-slim foldable, full-screen experience |
📱 What Makes the “Thin” Trend Significant
- Real engineering feats: Achieving ultra-slim profiles demands breakthroughs in battery tech, heat dissipation, and internal architecture.
- Consumer appeal: Sleek design translates to comfort and style—phones that slip easily into pockets and hands.
- Innovation frontier: Concept devices like TECNO’s show what’s possible, pushing big brands to adapt.
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Which of thesee phones are you buying? Tell us in the comment session
