OnePlus 15 ColorOS 17 Beta: OnePlus 15 & 15R Users Can Finally Test the OxygenOS Replacement

I’ve been reviewing OnePlus phones long enough to remember when OxygenOS was the entire pitch. “Fast and smooth,” burdenless software, close to stock Android — that was the whole personality of the brand for a good chunk of a decade. So when a reader messaged me last week asking if their OnePlus 15 had somehow gotten “hacked” because a beta update prompt mentioned ColorOS instead of OxygenOS, I laughed, and then I felt a little old, because no — that’s not a bug. That’s the plan.

OnePlus has officially opened its first ColorOS 17 closed beta, and for once, India isn’t getting the leftovers. It’s getting the entire program, first, exclusively.

What’s Actually Happening

Starting August 6, OnePlus began accepting applications for a closed beta testing (CBT) program that puts ColorOS 17 — not OxygenOS 17 — on the OnePlus 15 and OnePlus 15R. The application window closed on August 7, capped at roughly 300 testers per device, and it’s restricted entirely to Indian units of both phones. If you’re running a US or European variant, you’re sitting this one out; OnePlus hasn’t said when, or if, that changes.

I want to be clear about what this beta actually is, because I’ve seen a few posts online muddy it up: this isn’t a skin refresh or a settings menu reshuffle. This is OnePlus quietly retiring the software identity it built its early reputation on and replacing it with OPPO’s ColorOS, built on Android 17. It’s the first visible step of something OnePlus announced last month — that going forward, OxygenOS updates would stop, and eligible OnePlus devices would move to ColorOS instead.

Why This Is Happening Now

If you’ve followed OnePlus’s last few months even loosely, this shouldn’t feel like it came out of nowhere. OnePlus pulled out of the US and European smartphone markets recently, and around the same time, confirmed it would consolidate software engineering resources with OPPO, which already leads development for OPPO and Realme devices. The honest read, from where I sit, is that maintaining three separate Android skins — OxygenOS, ColorOS, and Realme UI — that were already sharing most of their underlying code was starting to look like wasted effort. Merging them means one team, one update cycle, and in theory, faster patches reaching your phone instead of OnePlus waiting on its own separate build pipeline.

It’s worth remembering OxygenOS hasn’t been fully “OnePlus” for a while now. OxygenOS 16 already ran on the same codebase as ColorOS, and the differences had shrunk down to cosmetic touches — the rounded volume and brightness sliders in quick settings, the red-accented lock screen clock, a few icon and animation choices. Those small details were basically the last visible seams between the two. With ColorOS 17, it sounds like even those seams are getting stitched shut, though OnePlus hasn’t confirmed exactly which of those signature touches, if any, survive.

Alongside the OnePlus 15 series, ColorOS 17 beta testing has also opened for the OPPO Find X9 Pro, OPPO Reno 15 Pro, and Realme GT 8 Pro in India, which tells you this isn’t a OnePlus-only experiment — it’s the whole family moving in sync.

Specification	Details
Software	ColorOS 17
Beta Type	Closed Beta
Eligible Phones	OnePlus 15 & OnePlus 15R
Market	India
Android Base	Android 17
Availability	Limited beta testing
Testing Purpose	Early software testing & user feedback
Current Status	Beta testing underway
Stable Release	Not officially confirmed yet
Important Note	Beta software may contain bugs or stability issues

Who Could Apply, and What It Actually Involves

Getting into this beta wasn’t a matter of tapping “Join” in a settings menu. OnePlus asked applicants to have an active OnePlus Community account, sign a non-disclosure agreement, and commit to participating in a dedicated Telegram group where the software team collects direct feedback. That’s a heavier ask than most beta programs, and it tells me OnePlus wants structured, trackable feedback rather than a flood of scattered app-store reviews. Selected testers are now waiting on confirmation and the beta build itself.

A few practical things worth knowing if you’re one of the 300, or thinking about the next round:

• Back up your data first. OnePlus has explicitly flagged this as early software — expect bugs, not polish.
• Nightly automatic updates get switched on as part of the beta, along with OPPO’s Experience Improvement Program, so the phone will be sending diagnostic data back by default.
• A rollback path exists. Once ColorOS 17 goes stable later this year, OnePlus has confirmed users will have the option to roll back to OxygenOS 16 if ColorOS doesn’t work for them — a sensible safety net given how big this change is.

My Honest Take

I’ve tested enough closed betas to know the difference between a company testing a feature and a company testing an identity, and this one is clearly the latter. OnePlus is betting that most of its users care more about update speed and stability than about a name on the boot screen. For a lot of buyers, that’s probably a fair bet — OxygenOS’s “difference” from ColorOS was already down to a slider shape by 2025. But there’s a smaller, louder group of longtime OnePlus users for whom OxygenOS wasn’t just software, it was the reason they bought the phone in the first place. This beta is the first real data point on whether that group notices, or minds.

If you didn’t get into this round, you’re not locked out forever — OnePlus has said more models will get the Android 17-based software later, and a public beta or stable rollout typically follows a closed program like this within a couple of months. I’d keep an eye on the OnePlus Community app rather than waiting for a push notification.

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