Introduction

When the OnePlus 6launched back in 2018, it instantly became known as the “flagship killer” — offering premium specs at a much lower price compared to big brands like Samsung and Apple.
Fast forward to 2025: how does this once-legendary device hold up in a rapidly evolving smartphone market?

In this OnePlus 6 Review 2025, we’ll revisit its features, performance, design, and whether it’s still a good buy today.

Design and Build Quality: Premium Then, Premium Now

The OnePlus 6 still feels remarkably modern even in 2025.

Key design highlights:

  • Glass front and back with Gorilla Glass 5 protection
  • Aluminum frame for durability
  • 6.28-inch Optic AMOLED display (1080 x 2280 resolution)
  • Slim bezels and a compact notch

While newer phones now offer under-display cameras and ultra-slim designs, the OnePlus 6’s build quality and display still feel elegant and premium.

Performance: Surprisingly Smooth

Powered by the Qualcomm Snapdragon 845 and paired with 6GB or 8GB RAM, the OnePlus 6 delivers snappy day-to-day performance.

  • Apps load quickly
  • Multitasking remains smooth
  • Gaming (like PUBG Mobile and Call of Duty Mobile) is still playable on medium settings

Thanks to OnePlus’ optimized OxygenOS (based on Android 11 if updated manually), the device holds up far better than many phones of its era.

Pro Tip:
Installing a lightweight custom ROM can extend performance even further if you’re tech-savvy.

Camera Quality: Good, But Shows Its Age

The OnePlus 6 features:

  • 16MP (primary) + 20MP (secondary) dual rear cameras
  • Optical Image Stabilization (OIS)
  • 16MP front camera

In good lighting, photos remain vibrant and detailed.
However, compared to 2025’s multi-lens flagship standards:

  • Night photography is limited
  • HDR can struggle with dynamic range
  • Video stabilization is decent but not industry-leading anymore

For casual users, the OnePlus 6 camera still performs respectably, but photography enthusiasts may find it lacking by today’s standards.

Battery Life and Charging

The 3300mAh battery paired with 20W Dash Charging still holds up decently.

  • A full charge lasts a typical day with moderate use.
  • Dash Charging refuels the battery from 0 to 60% in just 30 minutes.

However:

  • No wireless charging support
  • No IP water resistance rating officially

Considering its age, battery health may vary based on prior usage. Replacing the battery can restore longevity at a reasonable cost.

Software Support and Security

Official software updates for the OnePlus 6 ended around 2023.

If you care about:

  • Latest security patches
  • Android 12 or higher
  • Access to new features

➔ You’ll need to rely on custom ROMs like LineageOS or Pixel Experience.

Still, OxygenOS 11 keeps the experience clean, fast, and mostly bloat-free for basic users.

Pricing and Availability in 2025

You can find a OnePlus 6 in good condition for around $100–$150 USD today on secondary marketplaces.

✅ That’s a solid value for:

  • Students
  • Backup phone users
  • Minimalists who don’t need cutting-edge tech

Buying refurbished or second-hand requires careful checking for battery condition, screen integrity, and software unlock status.

Final Verdict: Is the OnePlus 6 Still Worth Buying in 2025?

For users who want a reliable, stylish, and fast phone without spending big bucks, the OnePlus 6 remains a hidden gem.

  • Strong performance for everyday tasks
  • Beautiful AMOLED screen
  • Premium build quality
  • Affordable second-hand pricing

However, if you prioritize photography, software updates, or futuristic features like 5G and wireless charging, newer models will serve you better.

The OnePlus 6 may no longer be the “flagship killer” it once was — but in 2025, it’s still killing it for smart buyers.

Final Thoughts

Revisiting the OnePlus 6 in 2025 reminds us why OnePlus earned its cult following.
Sleek design, fast performance, and incredible value — some things just never go out of style.

If you’re in the market for an affordable, solid Android device, don’t count the OnePlus 6 out just yet.

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