Preamble
The Samsung Galaxy S25 Edge ranks first at approximately 5.8 mm thick, featuring a 6.7-inch QHD+ AMOLED display, a powerful 200 MP camera, and a Snapdragon 8 Elite chip. It has a solid battery of around 3,900 mAh, but users may give up battery size for the thin design.
Next is the Infinix HOT 60 Pro+ at about 5.95 mm, offering a large 5,160 mAh battery with 45W fast charging, and a 6.78-inch curved AMOLED screen with a high refresh rate. However, it uses a mid-range chip (Helio G200) and lacks 5G in some variants.
The TECNO Slim Series, also around 5.93-5.95 mm, comes with a high-brightness curved AMOLED display and a similarly large battery, while offering 4G and 5G options.
The rumored iPhone 17 Air is expected to be about 5.5 mm thick at its thinnest, featuring a 6.6-inch OLED display and an A19 chip, but may have trade-offs in battery and camera options due to its ultra-thin design.
Lastly, the Honor Magic V5 is a foldable phone measuring around 8.8 mm when folded and 4.1-4.2 mm when unfolded, boasting dual screens and various camera options, but it is heavier than typical slab phones.
Top 5 Ultra-Thin Smartphones of 2025
Rank Model Thickness* Key Features / Trade-Offs
1. Samsung Galaxy S25 Edge ~5.8 mm
Gizchina
+4
The Times of India
+4
TechNave
+4
• 6.7-inch QHD+ AMOLED display (120Hz)
Inventrium Magazine
+3
TechNave
+3
Gizchina
+3
• 200 MP main camera, titanium body
TechNave
+1
• Snapdragon 8 Elite chip, slim but still solid battery (≈3,900 mAh)
TechNave
+1
• Strong in design & imaging; trade-offs in battery size vs thicker flagships.
2. Infinix HOT 60 Pro+ ~5.95 mm
Technetbook | The Tech Experts
+4
Inventrium Magazine
+4
Gizchina
+4
• Big 5,160 mAh battery, 45W fast charging
Gizchina
+2
Technetbook | The Tech Experts
+2
• 6.78″ 3D curved AMOLED, 144Hz refresh rate, 4500 nits peak brightness
Gizchina
+2
Technetbook | The Tech Experts
+2
• Helio G200 (4G), decent RAM/storage options; lighter build.
• Trade-off: mid-range chip, no 5G (in that variant), and cooling & durability may suffer vs thicker phones.
3. TECNO Slim Series (Spark Slim / POVA Slim) ~5.93 mm / 5.95 mm
Gizchina
• Under-6mm curved AMOLED screen, 144Hz, high brightness
Gizchina
• Large battery (~5,160 mAh) despite thin body; advanced internals like reworked connectors & components to save space.
Gizchina
• 4G and 5G variants; concept & early release; durability (glass, ingress protection) is decent.
4. iPhone 17 Air (Rumored) ~5.5 mm at its thinnest point; thicker when including camera bump (~9.5 mm there)
MacRumors
+2
MacRumors
+2
• OLED display ~6.6-inch, 120Hz (ProMotion) expected
Gadgets 360
+1
• A19 chip, single 48MP rear camera, likely no SIM slot (eSIM only)
MacRumors
+2
MacRumors
+2
• Ultra-thin body means trade-offs: smaller battery (rumored), possibly less robust cooling, fewer camera options.
• Rumors suggest strong build materials (titanium etc.), but not confirmed fully.
5. Honor Magic V5 (Foldable) Folded: ~8.8 mm; Unfolded: ~4.1-4.2 mm
The Verge
+2
Gadgets 360
+2
• Dual-screen foldable: ~7.95-inch main display, ~6.43-inch cover display; high brightness (~5000 nits)
Android Central
• Snapdragon 8 Elite, large battery (~5,820 mAh globally) plus good fast charging (66W wired, 50W wireless)
Android Central
• IP58/IP59 rating (dust & water) which is rare in foldables; multiple cameras including telephoto.
• Downsides: thicker when folded, heavier (~217-226g) than the slab phones; hinge durability and crease may matter.
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