SAMSUNG · SM-S918B
Samsung Galaxy S23 Ultra Updates Expected Until Feb 2028
Phone · International Samsung release channel record · Released Feb 2023
Family: Galaxy S series
Get record-change alerts →Samsung Galaxy S23 Ultra (SM-S918B) is recorded here for International Samsung release channel, released Feb 2023. Its security-support horizon of Feb 2028 is calculated from the maker's published policy. Grade B evidence from 3 cited sources (Samsung Newsroom, Samsung Electronics). Latest documented software: Android 16 · S918BXXSAFZI1 · SM-S918B · released 2026-09-30 · security patch 2026-09-05. Latest documented entry in cited ledger XXV, checked 4 October 2026; other regional or carrier builds may be newer..
Still getting security updates? Yes
Galaxy S23 Ultra is expected to get security updates until Feb 2028 — about 1 year 4 months from now.
What to do: Keep automatic updates enabled and verify the exact regional model before a used-device purchase.
Grade B: calculated from the manufacturer’s published policy, so treat it as a planning horizon, not a promised last-patch day. How grades work →
Support at a glance · Supported
Policy-derived horizon
Galaxy S23 Ultra: security support is expected through Feb 2028 under the cited policy calculation. Match the model and region below before applying this answer.
- Security-support horizon
- Expected through Feb 2028
- Model and scope
- SM-S918B · International Samsung release channel
- Evidence classification
- B · Policy-derived
- Supporting source
- Samsung Newsroom: Samsung Sets the New Standard With Four Generations of OS Upgrades ↗Source reviewed
What this status means for Galaxy S23 Ultra
Galaxy S23 Ultra remains within its recorded security-support window through Feb 2028.
What this Galaxy S23 Ultra record covers
Listed model identifiers: SM-S918B.
Recorded model and region: SM-S918B; International Samsung release channel.
Variants marked for separate lifecycle review: SM-S918B.
Galaxy S23, Galaxy S23+ share the same recorded release and security-support horizon.
From the recorded Feb 2023 release to Feb 2028, the support window spans about 60 months (month precision).
Support timeline
Sale and cloud-service evidence
- End of sale
- Not documented · Official source reviewed; date not publishedReviewed 2026-09-04 against Samsung Newsroom's cited lifecycle record. It does not publish a separate model-specific end-of-sale date for this record; the date remains undocumented and is not inferred from software-support end.
- Cloud-service end
- Not documented · No reviewed date
Identity and regional scope
- Marketed name
- Galaxy S23 Ultra
- Primary model identifier
- SM-S918B
- Evidence scope
- International Samsung release channel
How the support date was determined
Published policy applied to 2023-02-17; displayed at source-supported precision.
- Evidence class
- B · Policy-derived
- Date precision
- Month precision
- Jurisdiction/scope
- International Samsung release channel
Latest firmware or patch
Android 16 · S918BXXSAFZI1 · SM-S918B · released 2026-09-30 · security patch 2026-09-05. Latest documented entry in cited ledger XXV, checked 4 October 2026; other regional or carrier builds may be newer. · official firmware source checked Oct 2026.
Evidence scope: SM-S918B; Samsung Notify Update ledger XXV; not a worldwide rollout statement.
Recall and safety screening
Update cadence
Monthly. Checked 8 September 2026; Samsung may change this schedule, and carrier or regional delivery can differ.
Not yet documented for this record: repairability score or battery-service data. Reading this record
Nearest Samsung phone records by release date
| Record | Released | Security support | Grade |
|---|---|---|---|
| Samsung Galaxy S23 Ultra (this record) | Feb 2023 | Feb 2028 | B |
| Samsung Galaxy Z Flip4 | Aug 2022 | Aug 2027 | B |
| Samsung Galaxy S23 | Feb 2023 | Feb 2028 | B |
| Samsung Galaxy S23+ | Feb 2023 | Feb 2028 | B |
| Samsung Galaxy A54 5G | Mar 2023 | Mar 2028 | B |
| Samsung Galaxy Z Flip5 | Aug 2023 | Aug 2028 | B |
Longer-supported catalog records
Evidence
Last reviewed by Feroz Sheikh · 3 cited sources
BSamsung Newsroom · Worldwide manufacturer policy · Checked Sep 2026 · month precision
Samsung Electronics · International Samsung release channel · Checked Sep 2026 · unknown precision
Samsung Newsroom · Worldwide launch announcement · Checked Sep 2026 · unknown precision
Optional shopping links
Keeping this device? Check accessories
Samsung Galaxy S23 Ultra · protective case
- Model
- SM-S918B
- Record scope
- International Samsung release channel
Check the exact model code, dimensions, camera cutouts and button positions; similar names do not guarantee a fit.
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Claim-to-evidence provenance
Samsung Newsroom · Worldwide manufacturer policy · checked Sep 2026 · reviewed by Feroz Sheikh
limits capture · cba47e3b45f1…
Samsung's official policy covers eligible Galaxy S and Z models with four generations of One UI and Android OS upgrades and up to five years of security updates.
Official source reviewed for this separate field; absence is retained as unknown and is not converted into an inferred fact.Captured Sep 2026 · parser official-source-capability-review-v2Samsung Electronics · International Samsung release channel · checked Sep 2026 · reviewed by Feroz Sheikh
supports capture · 96a4309c3e4e…
Samsung's official model-keyed software-release ledger identifies Galaxy S23 Ultra by exact international hardware model SM-S918B. Firmware rollout remains region and operator specific.
Official Samsung release ledger keyed to the exact international model code.Captured Sep 2026 · parser samsung-model-identity-v1Samsung Electronics · SM-S918B; Samsung Notify Update ledger XXV; not a worldwide rollout statement · checked Oct 2026 · reviewed by Feroz Sheikh
historical capture · 0fbe4fac7125…
Galaxy S23 Ultra (SM-S918B): Android 16, build S918BXXSAFZH3, released 2026-09-03, security patch 2026-08-05. This is the newest entry visible in the cited model/channel ledger reviewed on 20 September 2026, not proof of the newest firmware in every market.
Previous assertion capture; superseded by the dated current review.Captured Sep 2026 · parser s23-ultra-firmware-review-2026-10-04-v2supports capture · 1cd3ab12d03e…
Galaxy S23 Ultra (SM-S918B): Android 16, build S918BXXSAFZI1, released 2026-09-30, security patch 2026-09-05. This is the newest entry visible in the cited model/channel ledger reviewed on 4 October 2026, not proof of the newest firmware in every market.
Exact scope retained; no support-end date inferred from firmware or cadence.Captured Oct 2026 · parser s23-ultra-firmware-review-2026-10-04-v2Samsung Newsroom · Worldwide launch announcement · checked Sep 2026 · reviewed by Feroz Sheikh
supports capture · 6af5debbfb8a…
Samsung states that the Galaxy S23 series receives four generations of OS upgrades and five years of security updates; the same footnote lists Galaxy Z Fold4 and Z Flip4 among the eligible four-generation devices. (Published 2023-02-02.)
Model-specific Samsung announcement stating the OS-upgrade generation count; security support stays a separate duration.Captured Sep 2026 · parser samsung-os-generation-commitment-v2U.S. Consumer Product Safety Commission · United States · checked Sep 2026 · reviewed by Feroz Sheikh
screened against capture · b1855338fc80…
The CPSC full recall dataset was checked by exact marketed device name and recorded model identifier. No exact match was found for the seeded catalog in the 4 September 2026 screening run.
Dated exact-name/model regulator screening capture.Captured Sep 2026 · parser cpsc-name-screen-v1Samsung Newsroom · Worldwide manufacturer policy · checked Sep 2026 · reviewed by Feroz Sheikh
supports capture · cba47e3b45f1…
Samsung's official policy covers eligible Galaxy S and Z models with four generations of One UI and Android OS upgrades and up to five years of security updates.
Reviewed bootstrap source capture.Captured Sep 2026 · parser curated-catalog-2026-09-04-v2Samsung Newsroom · Worldwide manufacturer policy · checked Sep 2026 · reviewed by Feroz Sheikh
supports capture · cba47e3b45f1…
Samsung's official policy covers eligible Galaxy S and Z models with four generations of One UI and Android OS upgrades and up to five years of security updates.
Reviewed bootstrap source capture.Captured Sep 2026 · parser curated-catalog-2026-09-04-v2Samsung Electronics · Samsung published model scope; region and carrier delivery may differ · checked Sep 2026 · reviewed by Feroz Sheikh
supports capture · 6297bbec7b8c…
Galaxy S23 Ultra: Monthly. Samsung's security scope checked on 8 September 2026. Its model lists change over time, and carriers can deliver quarterly updates even for a listed monthly model.
Exact scope retained; no support-end date inferred from firmware or cadence.Captured Sep 2026 · parser official-device-enrichment-2026-09-08-v1Revision history · 12 entries in 7 groups
Repeated entries are summarized once. The complete dated audit trail is retained separately.