UFS 4.0
UFS 3.1
UFS 2.2
4,200 MB/s
COMPLETE GUIDE
2026 Edition
UFS Storage Explained: UFS 2.2 vs UFS 3.1 vs UFS 4.0 – Complete Guide Malaysia 2026
Ever wondered why some phones load apps instantly while others feel sluggish? The answer lies in UFS storage — the unsung hero of smartphone performance. This comprehensive guide explains everything about UFS 2.2, UFS 3.1, and UFS 4.0 — their real-world speed differences, which phones use which version, and how to choose the right storage for your needs in Malaysia.
Whether you’re a gamer, content creator, or everyday user — understanding UFS storage will help you make smarter buying decisions. We cover sequential read/write speeds, random IOPS, real-world app loading times, and recommend the best UFS 3.1 and UFS 4.0 phones available in Malaysia 2026.
📋 Quick Navigation – UFS Storage Complete Guide
💾 What is UFS Storage?
UFS (Universal Flash Storage) is the high-speed storage technology used in modern smartphones, tablets, and other mobile devices. Developed by JEDEC (Joint Electron Device Engineering Council), UFS replaced the older eMMC standard to meet the demands of faster processors, higher-resolution cameras, and graphics-intensive games.
Think of UFS as the SSD equivalent for smartphones — just as SSDs revolutionised computer storage by replacing slow hard drives, UFS transformed mobile storage by offering dramatically faster read/write speeds compared to eMMC.
✅ Why UFS Matters for Your Phone:
- Faster app loading: Apps open almost instantly instead of showing loading screens
- Quicker file transfers: Move large files (videos, games) in seconds, not minutes
- Smoother multitasking: Switch between apps without lag or reloading
- Better gaming: Reduced texture pop-in, faster level loading, smoother gameplay
- 4K/8K video recording: Fast write speeds prevent dropped frames during recording
- Faster boot times: Phone starts up quicker after restart
Technology
NAND Flash
Interface
Serial
Data Lanes
2 (Full Duplex)
Standard Body
JEDEC
First Version
UFS 1.0 (2011)
Latest Version
UFS 4.0 (2022)
🔬 Technical Deep-Dive: How UFS Works
UFS uses a full-duplex serial interface with two data lanes — one for reading and one for writing. This means your phone can read and write data simultaneously, unlike eMMC which uses a half-duplex interface (can only do one operation at a time).
UFS also supports Command Queuing — allowing multiple commands to be processed in parallel rather than sequentially. This dramatically improves random read/write performance, which is critical for multitasking and app switching.
UFS uses a full-duplex serial interface with two data lanes — one for reading and one for writing. This means your phone can read and write data simultaneously, unlike eMMC which uses a half-duplex interface (can only do one operation at a time).
UFS also supports Command Queuing — allowing multiple commands to be processed in parallel rather than sequentially. This dramatically improves random read/write performance, which is critical for multitasking and app switching.
📊 UFS Versions Explained – 2.2 vs 3.1 vs 4.0
Not all UFS storage is created equal. Each generation brings significant speed improvements. Here’s a complete breakdown of every UFS version and what makes them different:
🥇 FASTEST
UFS 4.0
4th Generation • 2022
4,200 MB/s
Flagship 2024-2026
Sequential Read: Up to 4,200 MB/s
Sequential Write: Up to 2,800 MB/s
Interface: M-PHY 5.0 + UniPro 2.0
Lanes: 2 lanes @ 23.2 Gbps each
Power Efficiency: 46% better than UFS 3.1
Sequential Write: Up to 2,800 MB/s
Interface: M-PHY 5.0 + UniPro 2.0
Lanes: 2 lanes @ 23.2 Gbps each
Power Efficiency: 46% better than UFS 3.1
✅ Found In:
Samsung Galaxy S24/S25 Ultra, iPhone 15/16 Pro, Xiaomi 14/15 Ultra, OnePlus 12/13, OPPO Find X7/X8 Pro
🥈 FAST
UFS 3.1
3rd Generation+ • 2020
2,100 MB/s
Mid-Range & Budget Flagship
Sequential Read: Up to 2,100 MB/s
Sequential Write: Up to 1,200 MB/s
Interface: M-PHY 4.1 + UniPro 1.8
Lanes: 2 lanes @ 11.6 Gbps each
Features: Write Booster, Deep Sleep, HPB
Sequential Write: Up to 1,200 MB/s
Interface: M-PHY 4.1 + UniPro 1.8
Lanes: 2 lanes @ 11.6 Gbps each
Features: Write Booster, Deep Sleep, HPB
✅ Found In:
Samsung Galaxy A55/A56, POCO X6 Pro, Realme GT Neo 5, Redmi Note 13 Pro+, most mid-range phones 2023-2026
🥉 DECENT
UFS 2.2
2nd Generation+ • 2020
950 MB/s
Budget Phones
Sequential Read: Up to 950 MB/s
Sequential Write: Up to 500 MB/s
Interface: M-PHY 3.0 + UniPro 1.6
Lanes: 2 lanes @ 5.8 Gbps each
Features: Write Booster added
Sequential Write: Up to 500 MB/s
Interface: M-PHY 3.0 + UniPro 1.6
Lanes: 2 lanes @ 5.8 Gbps each
Features: Write Booster added
✅ Found In:
Samsung Galaxy A25, Redmi Note 12, Realme C-series, POCO M6, most budget phones under RM1,000
⚠️ SLOW
eMMC 5.1
Legacy Standard • 2015
400 MB/s
Entry-Level Only
Sequential Read: Up to 400 MB/s
Sequential Write: Up to 200 MB/s
Interface: Parallel (Half-Duplex)
Lanes: Single lane
Limitation: Cannot read/write simultaneously
Sequential Write: Up to 200 MB/s
Interface: Parallel (Half-Duplex)
Lanes: Single lane
Limitation: Cannot read/write simultaneously
⚠️ Found In:
Very cheap phones under RM400, older devices, some tablets
ℹ️ Note on UFS 3.0 vs UFS 3.1:
UFS 3.1 is an incremental update to UFS 3.0 with the same theoretical speed but adds three important features:
Write Booster (uses SLC cache for faster writes),
Deep Sleep (lower power consumption), and
Host Performance Booster (HPB) (uses phone RAM to speed up storage access).
Always prefer UFS 3.1 over 3.0 when available.
⚡ UFS Speed Comparison – Real Numbers
Let’s visualise the speed differences between UFS versions with actual benchmark data. These numbers represent typical real-world performance, not just theoretical maximums:
📖 Sequential Read Speed (MB/s)
Higher is better • Affects large file transfers, video playback, game loading
✍️ Sequential Write Speed (MB/s)
Higher is better • Affects app installation, 4K video recording, file saving
📊 Complete Specification Comparison Table
| Specification | eMMC 5.1 | UFS 2.2 | UFS 3.1 | UFS 4.0 |
|---|---|---|---|---|
| Sequential Read | 400 MB/s | 950 MB/s | 2,100 MB/s | 4,200 MB/s |
| Sequential Write | 200 MB/s | 500 MB/s | 1,200 MB/s | 2,800 MB/s |
| Random Read (IOPS) | ~7,000 | ~58,000 | ~100,000 | ~280,000 |
| Random Write (IOPS) | ~5,000 | ~50,000 | ~70,000 | ~280,000 |
| Interface | Parallel | Serial | Serial | Serial |
| Duplex Mode | Half | Full | Full | Full |
| Data Lanes | 1 | 2 | 2 | 2 |
| Lane Speed | 400 MB/s | 5.8 Gbps | 11.6 Gbps | 23.2 Gbps |
| Write Booster | ❌ | ✅ | ✅ | ✅ |
| Deep Sleep | ❌ | ❌ | ✅ | ✅ |
| HPB Support | ❌ | ❌ | ✅ | ✅ |
| Power Efficiency | Poor | Average | Good | Best |
| Price Segment | Under RM400 | RM500–RM1,200 | RM1,200–RM2,500 | RM2,500+ |
Speed Context:
“To put these numbers in perspective — transferring a 10GB game file takes about 2.4 seconds on UFS 4.0, 5 seconds on UFS 3.1, 11 seconds on UFS 2.2, and 25 seconds on eMMC. The difference becomes even more noticeable during daily use with app switching and multitasking.”
🆚 UFS vs eMMC – Why UFS is Superior
Many budget phones in Malaysia still use eMMC storage instead of UFS. Understanding the difference is crucial when choosing a budget device. Here’s a detailed comparison:
eMMC 5.1
400 MB/s
Half-Duplex
UFS 2.2
950 MB/s
2.4x Faster
UFS 3.1
2,100 MB/s
5.3x Faster
UFS 4.0
4,200 MB/s
10.5x Faster
✅ UFS Advantages Over eMMC
- Full-duplex: Read and write simultaneously
- Command Queuing: Process multiple commands in parallel
- 10x faster speeds: Dramatically better performance
- Better multitasking: Apps stay in memory longer
- Faster app installation: Install games in seconds
- 4K/8K video support: No dropped frames when recording
- Better power efficiency: Less battery drain per operation
- Future-proof: Handles demanding modern apps better
⚠️ eMMC Limitations
- Half-duplex only: Cannot read and write at the same time
- Single command: Processes one operation at a time
- Slow app switching: Noticeable lag when multitasking
- Longer install times: Apps and games take longer to install
- Video recording limits: May drop frames at 4K
- Stuttery gaming: Texture loading delays
- Higher power per MB: Less efficient than UFS
- Outdated standard: No longer improving
⚠️ Avoid eMMC in 2026:
While eMMC phones are cheaper, the user experience suffers significantly. Apps take longer to load, multitasking feels sluggish, and games may stutter during texture loading. In 2026, even budget phones at RM500–RM700 should have at least UFS 2.2. We recommend avoiding eMMC entirely unless you’re buying a phone purely for calls and basic messaging.
Check our guide on budget phones under RM500 in Malaysia — all our recommendations use UFS storage.
Check our guide on budget phones under RM500 in Malaysia — all our recommendations use UFS storage.
🎮 Real-World Performance – What You Actually Feel
Benchmark numbers are great, but what do these speed differences actually mean for daily use? Here’s how UFS versions compare in real-world scenarios:
📱 App Loading Times
| App/Game | eMMC 5.1 | UFS 2.2 | UFS 3.1 | UFS 4.0 |
|---|---|---|---|---|
| 3.2s | 1.8s | 1.1s | 0.7s | |
| TikTok | 4.1s | 2.3s | 1.4s | 0.9s |
| 2.0s | 1.2s | 0.8s | 0.5s | |
| PUBG Mobile | 45s | 28s | 18s | 12s |
| Genshin Impact | 55s | 35s | 22s | 14s |
| Mobile Legends | 12s | 7s | 4s | 2.5s |
| Microsoft Office | 5.5s | 3.2s | 2.0s | 1.2s |
| Camera App (first photo) | 2.8s | 1.5s | 0.9s | 0.5s |
🎮 Gaming Performance Impact
Level/Map Loading
UFS 4.0 loads game levels 2–3x faster than UFS 2.2. In PUBG Mobile, this means you land on the ground faster than opponents with slower storage — a genuine competitive advantage.
Best for: Competitive gamers
Texture Pop-In
Slower storage causes textures to load visibly after you’ve entered an area (pop-in). UFS 3.1+ virtually eliminates this in most games, while UFS 2.2 may show occasional delays in demanding titles like Genshin Impact.
Best for: Visual quality
Background App Retention
Faster storage helps the system swap apps in/out of memory more efficiently. This means you can switch between a game and WhatsApp without the game restarting.
Best for: Multitaskers
Game Installation
Installing a 5GB game takes ~3 minutes on eMMC, ~1 minute on UFS 2.2, ~30 seconds on UFS 3.1, and ~15 seconds on UFS 4.0. Major difference for large game downloads.
Best for: Frequent installs
ℹ️ Gaming Phone Storage Matters:
If you’re buying a gaming phone, UFS 3.1 should be the minimum. For serious competitive gaming or playing demanding titles like Genshin Impact or Honkai: Star Rail, UFS 4.0 provides a noticeably smoother experience. Check our guide on best gaming phones in Malaysia — all recommendations feature UFS 3.1 or better.
📹 Video Recording Performance
| Recording Mode | Required Write Speed | eMMC 5.1 | UFS 2.2 | UFS 3.1+ |
|---|---|---|---|---|
| 1080p 30fps | ~25 MB/s | ✅ OK | ✅ OK | ✅ Perfect |
| 1080p 60fps | ~50 MB/s | ✅ OK | ✅ OK | ✅ Perfect |
| 4K 30fps | ~100 MB/s | May Drop | ✅ OK | ✅ Perfect |
| 4K 60fps | ~200 MB/s | Drops | Marginal | ✅ Perfect |
| 8K 30fps | ~400 MB/s | ❌ No | ❌ No | ✅ Perfect |
| 4K ProRes/LOG | ~500+ MB/s | ❌ No | ❌ No | UFS 3.1+ Only |
✅ Content Creator Tip:
If you record video professionally — vlogging, TikTok, YouTube — UFS 3.1 is essential. It ensures smooth 4K 60fps recording without dropped frames and supports features like 8K recording and ProRes video formats. See our guide on best phones for vlogging and content creation.
📱 Best UFS 4.0 Phones in Malaysia 2026
UFS 4.0 is the fastest storage available in smartphones today. Here are the best UFS 4.0 phones you can buy in Malaysia:
🥇 #1 Flagship
Samsung Galaxy S25 Ultra
Samsung • Flagship 2025
RM 5,799+
UFS 4.0
Storage: UFS 4.0 (256GB/512GB/1TB)
Chip: Snapdragon 8 Elite
RAM: 12GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
Chip: Snapdragon 8 Elite
RAM: 12GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
🥇 Best Value
OnePlus 13
OnePlus • Flagship 2025
RM 3,999+
UFS 4.0
Storage: UFS 4.0 (256GB/512GB)
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Specs →
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Specs →
🥇 Camera King
OPPO Find X9 Pro
OPPO • Flagship 2025
RM 4,499+
UFS 4.0
Storage: UFS 4.0 (256GB/512GB)
Chip: Dimensity 9400
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
Chip: Dimensity 9400
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
🥇 Performance
Xiaomi 15 Ultra
Xiaomi • Flagship 2025
RM 4,999+
UFS 4.0
Storage: UFS 4.0 (256GB/512GB/1TB)
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Xiaomi Guide →
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB LPDDR5X
Read Speed: ~4,200 MB/s
Xiaomi Guide →
🥇 Gaming
ASUS ROG Phone 9 Pro
ASUS • Gaming 2025
RM 4,799+
UFS 4.0
Storage: UFS 4.0 (512GB/1TB)
Chip: Snapdragon 8 Elite
RAM: 16GB/24GB LPDDR5X
Read Speed: ~4,200 MB/s
Gaming Phones →
Chip: Snapdragon 8 Elite
RAM: 16GB/24GB LPDDR5X
Read Speed: ~4,200 MB/s
Gaming Phones →
🥇 Compact
Google Pixel 10 Pro
Google • Flagship 2025
RM 4,299+
UFS 4.0
Storage: UFS 4.0 (128GB/256GB/512GB)
Chip: Tensor G5
RAM: 12GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
Chip: Tensor G5
RAM: 12GB LPDDR5X
Read Speed: ~4,200 MB/s
Full Review →
📱 More UFS 4.0 Phone Guides
📱 Best UFS 3.1 Phones in Malaysia 2026
UFS 3.1 offers excellent performance at more affordable prices. These are the best UFS 3.1 phones offering great value in Malaysia:
💎 Best Value
Samsung Galaxy A56 5G
Samsung • Mid-Range 2025
RM 1,899
UFS 3.1
Storage: UFS 3.1 (128GB/256GB)
Chip: Exynos 1580
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
Chip: Exynos 1580
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
💎 Gaming Value
POCO X8 Pro
Xiaomi • Gaming Mid-Range 2025
RM 1,699
UFS 3.1
Storage: UFS 3.1 (256GB/512GB)
Chip: Snapdragon 8s Gen 3
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
Chip: Snapdragon 8s Gen 3
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
💎 Budget Flagship
Realme GT 7 Pro
Realme • Performance 2025
RM 2,499
UFS 3.1
Storage: UFS 3.1 (256GB/512GB)
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB
Read Speed: ~2,100 MB/s
Full Review →
Chip: Snapdragon 8 Elite
RAM: 12GB/16GB
Read Speed: ~2,100 MB/s
Full Review →
💎 Camera Focus
OPPO Reno 15 Pro
OPPO • Camera Mid-Range 2025
RM 2,299
UFS 3.1
Storage: UFS 3.1 (256GB/512GB)
Chip: Snapdragon 7 Gen 4
RAM: 12GB
Read Speed: ~2,100 MB/s
Full Review →
Chip: Snapdragon 7 Gen 4
RAM: 12GB
Read Speed: ~2,100 MB/s
Full Review →
💎 Balanced
Realme 16 Pro+
Realme • Mid-Range 2025
RM 1,999
UFS 3.1
Storage: UFS 3.1 (256GB/512GB)
Chip: Snapdragon 7s Gen 3
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
Chip: Snapdragon 7s Gen 3
RAM: 8GB/12GB
Read Speed: ~2,100 MB/s
Full Review →
💎 All-Rounder
OnePlus 13R
OnePlus • Mid-Range 2025
RM 2,499
UFS 3.1📱 More Mid-Range Phone Guides
🎯 Which UFS Version Do You Need?
Not everyone needs the fastest storage. Here’s a practical guide to help you choose the right UFS version based on your usage:
Casual User
Usage: Social media, messaging, photos, basic apps, occasional video streaming.
Recommended: UFS 2.2 is sufficient. You won’t notice the difference in daily use — app loading is still quick, and social media apps run smoothly.
Recommended: UFS 2.2 is sufficient. You won’t notice the difference in daily use — app loading is still quick, and social media apps run smoothly.
Budget: RM500–RM1,200
Mobile Gamer
Usage: PUBG, Mobile Legends, CoD Mobile, Genshin Impact, regular gaming sessions.
Recommended: UFS 3.1 minimum. Faster game loading, smoother texture streaming, and better app switching between games and chat apps.
Recommended: UFS 3.1 minimum. Faster game loading, smoother texture streaming, and better app switching between games and chat apps.
Budget: RM1,200–RM2,500 • Gaming phones →
Content Creator
Usage: 4K video recording, photo editing, video editing apps, frequent large file transfers.
Recommended: UFS 3.1 minimum, UFS 4.0 preferred. Essential for 4K 60fps recording without dropped frames and fast export times.
Recommended: UFS 3.1 minimum, UFS 4.0 preferred. Essential for 4K 60fps recording without dropped frames and fast export times.
Budget: RM2,000+ • Creator phones →
Business Professional
Usage: Email, Office apps, Zoom/Teams calls, document scanning, CRM apps, multitasking.
Recommended: UFS 3.1. Fast app switching is crucial for productivity. Documents load quickly, and multitasking between apps feels seamless.
Recommended: UFS 3.1. Fast app switching is crucial for productivity. Documents load quickly, and multitasking between apps feels seamless.
Budget: RM1,500+ • Business phones →
Competitive Gamer / Enthusiast
Usage: Esports-level gaming, fastest possible performance, future-proofing.
Recommended: UFS 4.0 essential. Competitive advantage from faster loading, zero texture pop-in, and the fastest possible response times.
Recommended: UFS 4.0 essential. Competitive advantage from faster loading, zero texture pop-in, and the fastest possible response times.
Budget: RM3,000+ • Flagship gaming →
Photography Enthusiast
Usage: RAW photography, burst shooting, 8K video, professional photo/video apps.
Recommended: UFS 4
Recommended: UFS 4
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