Samsung’s Android 16-based One UI 8 is rolling out in waves, beginning with the newest flagships and moving through foldables, last year’s S-series, A-series mid-rangers, and Galaxy Tab lines across October and November. This guide organizes the schedule and the reasons behind regional differences, so the timeline is easy to scan and apply.

What’s officially underway
- Rollout starts on Galaxy S25 devices, then expands to S24, Z Fold6/Flip6, and S24 FE in the following weeks.
- Timelines are phased by market; identical version numbers can still deliver different features by region and hardware.
October wave
Phones prioritized
- Galaxy S-series: S24 family (including FE), then S23, followed by S22.
- Foldables: Z Fold6 and Z Flip6 lead; Z Fold5/Flip5 may appear within the month in some markets.
Tablets prioritized
- Tab S10 series and Tab S9 series (including FE) are targeted for early-to-mid October.
- Tab S8 series typically appears later in the month where not deferred.
A-series prioritization
- A56 5G and A36 5G begin early.
- A55 5G, A35 5G, A34 5G, A25 5G, and similar mid-rangers follow through October.
November follow-through
Foldables and tablets
- Z Fold4/Flip4 commonly land in early-to-mid November where pending.
- Tab S8 line often targets November if not already covered.
Wider A-series coverage
- A15, A16, A24, A33 and other value tiers typically round out during November.
Eligibility snapshot
Flagships
- S25, S24 series, S23 series, S22 series, and select FE models.
Foldables
- Z Fold6/Flip6, Z Fold5/Flip5, Z Fold4/Flip4.
Tablets
- Tab S10 series (including FE/Lite where applicable), Tab S9 series (including FE), Tab S8 series.
A-series
- A56 5G, A36 5G, A55 5G, A35 5G, A34 5G, A25 5G, and broader A1x/A2x/A3x/A5x models depending on regional calendars.
Why rollouts are staggered
- Multi-stage pipeline: Android base integration, One UI features, chipset tuning, security validation, and local compliance.
- Carrier certification: Locked variants often trail unlocked models due to operator testing cycles.
- Feature variability: Certain One UI 8 capabilities require specific hardware, so feature sets can differ by device and market.
Regional calendars: how to use them
- Country posts for markets like Korea, Brazil, and India often provide month-by-week guidance.
- Treat these calendars as directional for nearby markets, allowing for slips from days to a couple of weeks based on carrier approvals.
What to expect by device class
- Recent flagships: S25 first; S24 family shortly after, often late September into October depending on market.
- New foldables: Z Fold6/Flip6 prioritized in October.
- Prior-gen foldables: Z Fold5/Flip5 and Z Fold4/Flip4 span late October into November.
- Premium tablets: Tab S10 and S9 cluster early-to-mid October; Tab S8 commonly later.
- A-series: Newer 5G models lead in early October; value tiers and older mid-range arrive mid-to-late October into November.
Feature outlook in One UI 8
- Platform: Android 16 underpinnings for stability, privacy, and performance improvements.
- AI and UX: Expanded Galaxy AI, refreshed glanceable surfaces, and more cohesive customization.
- Security: Continued hardening of device protections and account safeguards suited to enterprise needs.
Practical upgrade tips
- Check Settings > Software update weekly during October and November for S, Z, and Tab S families.
- Back up data and ensure adequate battery and storage before installing, especially on work-critical devices or DeX setups.
- Expect locked models to lag behind unlocked units by a few days to a couple of weeks due to certification.
At-a-glance timeline
- September to early October: S25 first, then S24 family, Z Fold6/Flip6, A56 5G, A36 5G.
- October: S23 and S22 series, Tab S10/S9 families, A55/A35/A34/A25 and similar mid-rangers.
- November: Z Fold5/Flip5 and Z Fold4/Flip4 where pending, Tab S8 series, and broader A-series like A15/A16/A24/A33.