Samsung Galaxy S25 vs S9: 7 Years of Smartphone Evolution
We tested Samsung's 2025 flagship against the beloved 2018 classic to measure exactly how much has changed in display technology, camera performance, and processing power.
S9 vs S25
The 7-Year Specification Leap
Display
S9:
5.8" 1440p
S25:
6.3" 4K Dynamic AMOLED 3X
Improvement:
+126% PPI
Performance
S9:
Exynos 9810
S25:
Exynos 2500
Improvement:
+850% CPU
Camera
S9:
12MP (f/1.5)
S25:
200MP (f/1.2)
Improvement:
+16x resolution
Camera Comparison: From Good to Supercomputational
S9: 1/4s, f/1.5, ISO 3200
2018: Noticeable noise and loss of detail
S25: AI Night Mode (8-frame stack)
2025: Clean details with accurate colors
Performance Benchmarks: The Raw Numbers
Geekbench 6 (Multi)
12,850
S25 (Exynos 2500)
1,350
S9 (Exynos 9810)
3DMark Wild Life
14,200
S25 (Xclipse 940)
2,100
S9 (Mali-G72)
Storage Speed
4,800 MB/s
S25 (UFS 4.0)
550 MB/s
S9 (UFS 2.1)
Real-World Usage Differences
- App Launch: 0.3s vs 1.8s average (6x faster)
- 4K Export: 22s vs 4min 15s (12x faster)
- Battery Life: 18h vs 5h screen-on time
Should You Upgrade in 2025?
Reasons to Upgrade from S9:
- Security: S9 stopped receiving updates in 2021
- 5G/6G: Modern network compatibility
- AI Features: Real-time translation, advanced camera AI
- Battery Health: 7-year-old batteries degrade significantly
Reasons to Keep S9:
- Headphone Jack: Still works perfectly
- Compact Size: 5.8" vs 6.3" display
- For Basic Use: Calls, messaging still functional
The Verdict: While the S9 remains usable for basic tasks, the S25 represents a monumental leap in every technical aspect. The upgrade is essential for security-conscious users and anyone needing modern features, but the S9 holds nostalgic value as one of Samsung's last "compact" flagships.
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