29 Sept 2025
The Samsung Galaxy S25H pushes mobile design boundaries with its extreme thinness and lightness, employing advanced materials for durability. This innovative design, however, introduces trade-offs in performance throttling and battery longevity, despite housing powerful internal components.
Samsung pioneered curved displays years ago with the Galaxy Note 4, establishing an 'edge' concept in mobile design.
The Galaxy S25H distinguishes itself with extreme thinness (5.8mm) and lightness (163 grams), aiming to make a new mark in the mobile world.
A combination of titanium and an aluminum internal chassis provides both lightness and sufficient strength, preventing bending, a lesson learned from past thin phone issues.
The S25H offers a premium and durable feel when held, though the sensation of thinness diminishes quickly with case usage.
Samsung successfully integrated all necessary technology into a chassis less than 6mm thick, a significant engineering feat.
The phone features the powerful Snapdragon 8 Elite F Galaxy chip, identical to the S25 Ultra, along with 12 GB of RAM and at least 256 GB of internal storage.
Samsung implemented an optimal heat transfer system and vapor chamber to manage the powerful chip effectively within the thin design, distributing temperature evenly across the phone's back.
The S25H's chip delivers full power only in the initial benchmark loop, subsequently reducing power by about 10% per loop until stabilizing at 40-50% of its full capacity.
Despite benchmark throttling, the phone handles demanding games like Crysis on Extreme settings without noticeable issues, indicating the chip's power even when operating at reduced capacity.
Benchmarks indicate the S25H performs approximately 15 times weaker on average compared to the S25 Ultra, even with the same core chip.
The 380 mAh battery lasts from morning to evening; benchmark tests consume 50-55% of the battery, significantly higher than the 30-40% used by other flagship phones.
An hour of intense gaming on the highest settings consumes about 15% of the battery, which is considered relatively high.
The S25H includes a 200-megapixel main camera, although its sensor is slightly smaller than the S25 Ultra's.
An ultrawide camera is present, but a telephoto lens is absent; 2x digital zoom is advertised to mimic optical zoom capabilities.
Day-light photos from the S25H are almost indistinguishable from the S25 Ultra, and low-light performance is effective with artificial intelligence.
Users are advised to limit zooming to 2x and to largely disregard the ultrawide camera for optimal results.
The S25H appeals to users desiring Samsung's latest engineering innovations in a lightweight, thin design, but its price point makes other S25 models like the Ultra or Memory more cost-effective for general use cases.
Samsung used a combination of titanium and an aluminum internal chassis to be both light and strong, ensuring the phone would not bend.
| Feature | Description |
|---|---|
| Design Focus | Extreme thinness (5.8mm) and lightness (163g). |
| Material Composition | Titanium and aluminum internal chassis for enhanced durability and strength. |
| Processor | Snapdragon 8 Elite F Galaxy chip (same as S25 Ultra). |
| Thermal Solution | Optimized heat transfer system and vapor chamber. |
| Benchmark Performance | Significant power throttling after initial peak, stabilizing at 40-50% of full capacity; ~15 times weaker than S25 Ultra in benchmarks. |
| Gaming Experience | Handles demanding games on extreme settings without noticeable performance issues. |
| Battery Capacity | 380 mAh battery. |
| Battery Drain (Benchmarks) | 50-55% consumption (vs. 30-40% for other flagships). |
| Main Camera | 200-megapixel with a slightly smaller sensor than the S25 Ultra. |
| Zoom Capability | 2x digital zoom recommended; no optical telephoto lens. |
| Included Secondary Camera | Ultrawide camera. |
| Target Audience | Enthusiasts valuing cutting-edge design and engineering, accepting performance/battery trade-offs. |
