The smartphone market moves fast. Flagships from just a few years ago are often considered obsolete by today’s standards. Yet, some devices defy the odds. The OnePlus 6 and Samsung Galaxy S9 were both released in 2018—over six years ago. While most users have upgraded multiple times since then, a small but vocal community still uses the OnePlus 6 daily. And surprisingly, many of them report being satisfied. But how does it stack up against its contemporary rival, the Galaxy S9? More importantly, can a phone this old still deliver a usable, even enjoyable experience in 2024?
Performance and Hardware: Built to Last
At launch, both phones were top-tier. The OnePlus 6 featured Qualcomm’s Snapdragon 845, paired with up to 8GB of RAM and UFS 2.1 storage. It was among the first Android phones to offer such high memory configurations, making multitasking and app loading exceptionally smooth. The Galaxy S9 also used the Snapdragon 845 (or Exynos 9810 in some regions), but typically came with 4GB of RAM—half that of the higher-end OnePlus 6.
In real-world use today, the difference in RAM becomes apparent. The OnePlus 6 handles background apps better, especially when running lightweight versions of modern apps. Users report that core functions like messaging, browsing, and music streaming remain fluid. The lack of heavy bloatware on OxygenOS (now ColorOS) at the time gave the OnePlus an edge in responsiveness.
The Galaxy S9, while powerful in its day, suffers more from software bloat and slower app switching due to lower RAM. Additionally, Samsung’s UI updates over the years added layers of complexity that older hardware struggles with. Even on stock firmware, the S9 feels noticeably slower in 2024 than the OnePlus 6 under similar conditions.
Software Support and Update Lifespan
This is where the paths diverge significantly. OnePlus promised two major OS updates for the OnePlus 6, delivering Android 9 Pie and Android 10. Security patches continued into early 2021. After that, official support ended. However, the open nature of the OnePlus bootloader and strong developer community mean custom ROMs like LineageOS, crDroid, and Pixel Experience continue to bring Android 13 and even Android 14 to the device—with decent stability.
Samsung, on the other hand, provided three major OS updates (up to Android 12) and monthly security patches for four years—a significant improvement over previous models. But by 2024, even the S9 is no longer receiving any updates. Unlike OnePlus, Samsung locks its bootloaders tightly, making custom ROM installation difficult and risky. As a result, most Galaxy S9 users are stuck on outdated, unsupported software with growing security vulnerabilities.
“Long-term software support isn’t just about new features—it’s about security, compatibility, and peace of mind.” — David Kim, Mobile Security Analyst at TechShield Labs
Real-World Comparison: Daily Use in 2024
To understand current usability, consider a side-by-side comparison of key aspects:
| Feature | OnePlus 6 | Galaxy S9 |
|---|---|---|
| Processor | Snapdragon 845 | Snapdragon 845 / Exynos 9810 |
| RAM | 6GB or 8GB | 4GB |
| Battery Life | Fair (3300mAh, degraded) | Poor (3000mAh, fast drain) |
| Latest Official OS | Android 10 | Android 12 |
| Custom ROM Support | Excellent (Android 13/14 available) | Limited (few stable options) |
| App Compatibility | Most apps work; minor issues with newer versions | Increasing crashes in banking, social, and camera apps |
| Durability | Glass back, aluminum frame | Glass back, aluminum frame |
The OnePlus 6 holds up better not because of superior original specs alone, but due to ongoing community support and cleaner software roots. Many long-term OnePlus 6 users run custom ROMs optimized for speed and battery efficiency, giving the phone a second life.
Mini Case Study: Alex, Developer & Minimalist User
Alex, a 34-year-old backend developer from Portland, has been using his OnePlus 6 since 2018. He replaced the battery twice and currently runs crDroid Android 13. “I don’t need the latest camera or face unlock,” he says. “I use my phone for coding notes, SSH access, podcasts, and occasional web browsing. The 6 still handles that fine. I’ve disabled Google services and use F-Droid for privacy-focused apps. It boots fast, doesn’t lag, and lasts a full workday.”
He tried upgrading to a newer Samsung flagship but found the constant notifications, bloatware, and aggressive battery throttling frustrating. “My OnePlus gives me control. I know exactly what’s running. For my use case, it’s more reliable than anything I’ve used since.”
Alex isn’t alone. Online forums like XDA Developers and Reddit communities such as r/oneplus still host active discussions about optimizing the OnePlus 6. Some users treat it as a digital detox device—removing social media apps entirely and using it strictly for calls, messages, and utilities.
Is Anyone Still Happy Using the OnePlus 6?
Yes—but with caveats. Satisfaction depends heavily on usage patterns. Users who rely on intensive apps like TikTok, Instagram Reels, or modern mobile games will find the OnePlus 6 limiting. Video encoding, AR filters, and multi-lens camera switching are either slow or unavailable. Battery degradation is inevitable after six years, though replacements are inexpensive and widely available.
However, for light to moderate users, the OnePlus 6 remains functional. Its near-stock Android experience translates to fewer system hiccups. The physical alert slider, which lets you toggle between silent, priority, and ring modes instantly, is still praised as one of the best UX touches in smartphone history.
In contrast, Galaxy S9 users report increasing frustration. Apps like WhatsApp now warn that the OS is too old. Banking apps frequently fail verification checks. Camera performance has deteriorated, and low-light photos are noisy and slow to process. While the S9+ had a dual-camera setup, the single f/1.5–f/2.4 variable aperture lens hasn’t aged well against modern computational photography.
Checklist: Is Your OnePlus 6 Still Viable in 2024?
- ✅ Replace the battery if capacity is below 70%
- ✅ Flash a lightweight custom ROM (e.g., LineageOS)
- ✅ Disable auto-updates for Google apps to avoid compatibility breaks
- ✅ Use privacy-focused alternatives (Signal instead of WhatsApp, Firefox Focus)
- ✅ Keep only essential apps installed
- ✅ Enable dark mode and reduce screen brightness to conserve power
- ✅ Perform a factory reset every 6–12 months to maintain speed
Frequently Asked Questions
Can the OnePlus 6 run WhatsApp in 2024?
Yes, but with limitations. WhatsApp supports Android 5.0 and up, so technically it works. However, newer features may not function properly, and future updates could drop support. Some users report needing to install older APK versions to maintain functionality.
Why does the OnePlus 6 last longer than the Galaxy S9?
Mainly due to higher RAM, cleaner software, and robust custom ROM support. OnePlus’s unlocked bootloader policy empowered developers to keep the device alive, while Samsung’s closed ecosystem limited post-support innovation.
Should I upgrade if I’m still using either phone?
If security, app compatibility, or camera quality matter to you, yes. Modern mid-range phones like the Pixel 7a or OnePlus Nord series outperform both in every category. But if your needs are minimal and you value simplicity, extending the life of your OnePlus 6 is a valid, eco-conscious choice.
Making the Most of an Aging Device
Keeping a 2018 phone functional in 2024 isn’t just nostalgia—it’s a statement about sustainability and intentional tech use. The average smartphone lifespan is now under three years, contributing to massive e-waste. Devices like the OnePlus 6 prove that with proper care, software flexibility, and realistic expectations, older hardware can remain useful far beyond its expected retirement date.
The key is adaptation. This means accepting slower app launches, smaller storage limits, and occasional compatibility hiccups. But in return, you gain a device free from aggressive tracking, addictive notifications, and planned obsolescence.
Conclusion
The OnePlus 6 vs Galaxy S9 debate in 2024 isn’t about which was better at launch—it’s about which ages with dignity. Based on user reports, technical capabilities, and community support, the OnePlus 6 wins decisively. There are still people using it daily and genuinely happy with the experience, especially those who prioritize control, simplicity, and longevity over cutting-edge specs.
If you’re holding onto either device, ask yourself: What do I actually need my phone to do? For many, the answer doesn’t require a $1,000 flagship. Sometimes, the best phone is the one that still works—and still serves you well.
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