From Galaxy S6 to Galaxy S25:
By TechReders | Updated: 2025
Back in 2015, Samsung unveiled the Galaxy S6, a device that revolutionized the design language of its smartphones. Fast forward to 2025, and we now have the Galaxy S25, a technological marvel that pushes boundaries in every direction. I recently spent several days revisiting the Galaxy S6 while testing the new Galaxy S25 — and here’s what I discovered about how far Samsung’s Galaxy S series has come.
Galaxy S6 in 2025 – A Relic of a Bold New Era
When the Galaxy S6 launched, it was praised for its bold glass and metal design, a Quad HD Super AMOLED display, and a 16MP rear camera. In 2025, using the S6 feels like a step into a time capsule. The phone is small, light, and surprisingly premium even by today’s standards.
- Display: 5.1" QHD Super AMOLED
- Processor: Exynos 7420 / Snapdragon 810
- RAM: 3GB
- Battery: 2550mAh (non-removable)
- Software: Last supported version – Android 8.0 Oreo
Apps load slowly, the camera is basic, and battery life barely lasts a few hours, but it’s a reminder of how Samsung once prioritized form over function. The S6 set a high bar for build quality and screen excellence, even if it lacked expandable storage or a removable battery.
Galaxy S25 – The 2025 Flagship Reimagined
The Galaxy S25 is the most advanced and refined Samsung flagship to date. It's packed with AI-enhanced features, a dazzling 6.9-inch Dynamic AMOLED 3X display, and powered by the latest Exynos 2500 or Snapdragon 8 Gen 4. Using the S25 after the S6 feels like moving from the stone age to a sci-fi future.
- Display: 6.9" Dynamic AMOLED 3X, 144Hz, QHD+
- Processor: Exynos 2500 / Snapdragon 8 Gen 4
- RAM: 16GB
- Battery: 5000mAh with 65W wired + 45W wireless charging
- Software: Android 15 with One UI 7.1
- Camera: 200MP + 50MP ultra-wide + 20MP periscope zoom
Samsung’s AI engine now learns your usage patterns and adjusts resources in real time. The camera takes stunning night photos, AI video stabilization is industry-leading, and the design blends elegance with cutting-edge durability. There’s also built-in satellite connectivity and a new Secure AI Vault for sensitive data.
Comparing Galaxy S6 vs Galaxy S25 – Side by Side
| Feature | Galaxy S6 (2015) | Galaxy S25 (2025) |
|---|---|---|
| Display | 5.1" QHD AMOLED | 6.9" QHD+ AMOLED 3X, 144Hz |
| Camera | 16MP Single Lens | 200MP Triple AI Camera |
| Software | Android 5.0 – 8.0 | Android 15 (5 Years Updates) |
| Battery | 2550mAh (No Fast Charging) | 5000mAh + Fast Wireless/Wired |
| Design | Glass and Metal (No IP Rating) | Titanium-Glass Hybrid (IP68+) |
| AI Features | None | AI Assistant, Smart Mode Switching, AI Zoom |
How Samsung Evolved Its Flagship Series
From the S6 to the S25, Samsung has shifted its focus from pure design to intelligent performance. Key milestones included the dual aperture lens in the S9, the punch-hole camera of the S10, the power-packed S20 Ultra, and the AI integration in the S23 and S24 series.
Now, the Galaxy S25 stands as a culmination of that decade-long evolution. It’s not just a smartphone — it’s a full ecosystem tool, supporting DeX Pro mode, desktop-class multitasking, and seamless Galaxy AI integration.
Final Verdict – From Legacy to Leadership
After 30 days of revisiting the S6 and daily use of the S25, I can confidently say this: Samsung has come a long way. The Galaxy S6 was a beautiful phone ahead of its time. The Galaxy S25 is a powerful, smart, and refined beast designed for the future.
If you’re still holding onto an older Galaxy, the S25 isn’t just an upgrade — it’s a whole new experience. And if you're nostalgic for the S6, the S25 still holds that DNA of design excellence, now wrapped in AI-powered smartness.
Rating: Galaxy S25 – 9.7/10 | Galaxy S6 (2025 revisit) – 6.5/10
Stay tuned for more long-term tests and exclusive flagship reviews on TechReders.com
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