1.OPPO Find N5 (foldable) 

Thickness: 4.21 mm unfolded • 8.93 mm folded Why it matters: Currently the thinnest foldable phone in the world

2.Honor Magic V3 (foldable)

Title 3

Thickness: 4.4 mm unfolded – Recognized among the top few in ultra-thin foldable

3.Huawei Mate XT Ultimate (foldable)

Thickness: 4.75 mm unfolded – A tri-fold design that ranks among the "Top 10 thinnest foldables"

4.Honor Magic Vs3 (foldable)

Thickness: 4.8 mm unfolded – Another leading slim foldable in the global top‑10 list

5.Google Pixel 9 Pro Fold (foldable)

5.Google Pixel 9 Pro Fold (foldable)

Thickness: 5.1 mm unfolded – Listed among the thinnest foldables in the world

6.Samsung Galaxy S25 Edge (traditional flagship)

6.Samsung Galaxy S25 Edge (traditional flagship)

Thickness: around 5.8–5.85 mm – One of the slimmest mainstream flat smartphones, powered by Snapdragon 8 Elite and featuring a 200 MP camera

7.Tecno Spark Slim (traditional)

Thickness: ~4.04 mm (claimed concept), or 5.75 mm in production – Boasts a large 5,200 mAh battery and curved AMOLED display; still pending widespread availability