Your phone’s storage is about to get a massive upgrade. UFS 5.0, the next-generation Universal Flash Storage standard, is now in active testing — with Kioxia already shipping evaluation samples to device makers, and the first phones potentially arriving in late 2026 or early 2027.
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UFS Storage Evolution: How Far We’ve Come
| Standard | Max Read Speed | Key Milestone |
|---|---|---|
| UFS 3.1 | ~2,100 MB/s | Current budget/mid-range standard |
| UFS 4.0 | ~4,200 MB/s | Current flagship standard |
| UFS 4.1 | ~6,000 MB/s | Galaxy S26 generation |
| UFS 5.0 | ~10,800 MB/s | In testing — late 2026/early 2027 |
Why UFS 5.0 Is a Bigger Jump Than You’d Think
Kioxia’s UFS 5.0 samples utilise MIPI M-PHY 6.0 for the physical layer alongside an in-house controller and 8th-generation BiCS FLASH 3D memory with CBA (CMOS directly Bonded to Array) technology to boost power efficiency, performance, and density — available in 512GB and 1TB capacities.
UFS 5.0 could support up to 10.8GB/s of theoretical bandwidth — roughly twice that of UFS 4.0 — enabling faster large file transfers, more stable 4K and 8K video recording, and significantly improved on-device AI performance.
Crucially, UFS 5.0 is designed to be backward-compatible with UFS 4.x hardware, which should make adoption easier for manufacturers — and it’s been optimised specifically to consume less power despite the dramatically higher speeds. While JEDEC is still finalising the UFS 5.0 standard, evaluation samples are already being sent out for interoperability testing — and phones using the tech are not expected to arrive until late 2026 or early 2027.
For the official JEDEC UFS specification details, see JEDEC’s UFS standards page and Kioxia’s official announcement. Also check our coverage of best phones with UFS 4.1 storage in 2026 and how smartphone storage affects AI performance on TechnoSports.
FAQs
Will the Samsung Galaxy S26 series use UFS 5.0 storage?
No — the S26 series uses UFS 4.1. UFS 5.0 is expected in the Galaxy S27 generation and beyond.
Is UFS 5.0 faster than a laptop SSD?
At 10.8GB/s, UFS 5.0 theoretically surpasses PCIe 4.0 SSDs — making it genuinely PC-class storage in a phone.
