Samsung Expands One UI 9 Beta to Galaxy S26 Series While Budget Devices Begin Internal Testing

The beta update is live across all six official test regions: South Korea, the United States, the United Kingdom, Germany, India, and Poland . However, users in India are receiving this as their second beta since India's program launched one release cycle behind other regions .

Samsung's public beta program for One UI 9 began on May 13, 2026, with the first build, and Beta 2 followed shortly after . With Beta 3, the company is working through a familiar maturity cycle. Samsung historically ships five to seven beta versions before a final stable release, and many observers currently expect Beta 4 to land before July .

Internal Testing Quietly Expands to Mid-Range Devices

While the public beta is locked to the latest flagship, Samsung's internal development is far broader. In early June 2026, tipsters discovered test firmware for three mid-range Galaxy A devices on Samsung's OTA servers :

• Galaxy A17 5G: Build A176BXXU5DZF1
• Galaxy A34: Build A346BXXUFGZF1
• Galaxy A57: Build A576BXXU3BZF3

A week later, a test build for the even more affordable Galaxy A16 5G (A166BXXU8EZF1) appeared on Samsung's European servers, marking the first time the update reached a true budget-tier phone .

These discoveries confirm Samsung is running One UI 9 across a wider device portfolio than just its flagships. According to insider Tarun Vats, the final list of Galaxy A models anticipated to receive the stable update extends to more than a dozen devices—including the A37, A36, A35, A25, A24, A16, A15, and others—though Samsung has not officially confirmed any of them yet .

Despite the promising signs, these are early-stage internal builds, not public betas. "Even though the test builds have been spotted on Samsung's European servers, we're at least one month away from any stable beta rolling out to the Galaxy A16," noted PhoneArena after the budget phone's test firmware surfaced . No Galaxy A device is in a public beta program as of mid-June 2026.

Stable Release Timeline: Unpacked Is the Target

Samsung hasn't locked in an official stable release date, but multiple credible sources point to the company's summer Galaxy Unpacked event as the intended launch window . Korean media, including Seoul Economic Daily and Korea Economic TV, have reported July 22, 2026, as the date for the next Unpacked, where the Galaxy Z Fold 8 and Z Flip 8 are expected to launch with One UI 9.0 pre-installed .

Following the foldable debut, the rollout is expected to proceed in stages :

• Galaxy Z Fold 8 and Z Flip 8: Stable One UI 9 out of the box at Unpacked (projected July 22)
• Galaxy S26 series: Stable rollout expected shortly after Unpacked, likely in September 2026
• Galaxy S25 and S24 series: Stable update expected in Q3 2026
• Galaxy A-series and older devices: Through late 2026 and into early 2027

This phased rollout approach matches Samsung's established pattern: debut the new software on the latest foldables, then trickle it down through the flagship and mid-range lineups over the subsequent months.

What One UI 9 Brings to the Table

One UI 9 is built on top of Android 17 and focuses on four pillars Samsung has emphasized from the start: creativity, customization, accessibility, and security . While the early betas haven't been visually radical by design, the feature list is taking shape.

Redesigned Quick Panel

The Quick Panel is the most visible change. Users can now independently resize and reposition the brightness slider, volume controls, and media player widget—a significant upgrade to a UI element that had gone mostly unchanged for several versions . Samsung has also added more layout options to let users decide how dense or spacious the panel appears.

Real-Time Security Protections

One UI 9 strengthens Samsung's on-device security suite with two additions. A new real-time app blocker detects high-risk applications during installation and execution, immediately warning users and recommending removal . A companion anti-phishing system flags suspicious links in messages and browsers, adding a layer of defense against increasingly common mobile scams .

Combined TalkBack Accessibility

Samsung has consolidated TalkBack screen-reader settings into a unified menu, making the accessibility tool easier to locate and configure for users who rely on it . The update also adds adjustable Mouse Key speed and other small but meaningful usability refinements for people with motor and visual impairments .

Enhanced Samsung Notes and DeX

Samsung Notes gets decorative tape options, new pen line styles, and richer formatting tools aimed at productivity users and students . Samsung DeX has been upgraded with improved desktop previews that make multitasking between phone and external displays smoother .

Beta 1 shipped with the May 5, 2026 security patch, and subsequent betas have kept the security patch level current throughout the program .

The final stable build may carry a broader feature set, but for now, Samsung's focus appears to be on stabilization and polish ahead of the July Unpacked deadline.