10 Best SSD Sizes to Buy in 2026 – Expert Picks

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Choosing the right SSD size can feel overwhelming—especially when you’re balancing performance, storage needs, and budget. Whether you’re upgrading an old laptop, building a new gaming rig, or expanding your PS5 storage, knowing what size SSD you should buy is crucial. In this expert-reviewed roundup, we break down the best SSDs across various capacities and use cases to help you make a smart, informed decision without the tech jargon.

Quick Product Comparison

Product Image Check Price
1. Samsung 870 EVO 1TB SATA III 2.5″ Internal SSD for PC and Laptop Storage Upgrade… Samsung 870 EVO 1TB SATA III 2.5 Check Price
2. Samsung Electronics 870 EVO 2TB 2.5 Inch SATA III Internal SSD… Samsung Electronics 870 EVO 2TB 2.5 Inch SATA III Internal SSD Check Price
3. Western Digital 1TB WD Blue SA510 SATA Internal Solid State Drive SSD – SATA III 6 Gb/s, 2.5″/7mm…… Western Digital 1TB WD Blue SA510 SATA Internal Solid State Drive SSD Check Price
4. 1TB NVMe M.2 PCIe 4.0 SSD with Heatsink for Gaming and PS5 Expansion… 1TB NVMe M.2 PCIe 4.0 SSD with Heatsink for Gaming and PS5 Expansion Check Price
5. Crucial BX500 2TB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s – CT2000BX500SSD1, Solid Stat…… Crucial BX500 2TB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s - Check Price
6. Samsung 870 EVO 500GB 2.5″ SATA III Internal SSD for Laptops and PCs… Samsung 870 EVO 500GB 2.5 Check Price
7. SanDisk Ultra 3D NAND 500GB Internal SSD – SATA III 6 Gb/s, 2.5 Inch /7 mm, Up to 560 MB/s – SDSSDH3… SanDisk Ultra 3D NAND 500GB Internal SSD - SATA III 6 Gb/s, 2.5 Inch / Check Price
8. Western Digital 2TB WD Blue SA510 SATA Internal Solid State Drive SSD – SATA III 6 Gb/s, 2.5″/7mm…… Western Digital 2TB WD Blue SA510 SATA Internal Solid State Drive SSD Check Price
9. Fanxiang S101 4TB SATA III 2.5″ Internal SSD for Laptop and Desktop… Fanxiang S101 4TB SATA III 2.5 Check Price
10. Kingston 960GB A400 SATA3 2.5″ Internal SSD SA400S37/960G – HDD Replacement for Increase Performance… Kingston 960GB A400 SATA3 2.5 Check Price

Our Top 10 What Size Ssd Should I Buy Reviews – Expert Tested & Recommended

🏆 Best Choice

1. Samsung 870 EVO 1TB SATA III 2.5″ Internal SSD for PC and Laptop Storage Upgrade

Samsung 870 EVO 1TB SATA III 2.5

The Samsung 870 EVO 1TB is a rock-solid choice for anyone asking what size SSD should I buy for everyday computing. It delivers near-saturation of the SATA III interface with 560/530 MB/s read/write speeds and boasts up to 600 TBW endurance—perfect for years of reliable use.

Key Features That Stand Out

✓ Maximizes SATA III performance with 560 MB/s read speeds
✓ Industry-leading reliability with up to 600 TBW and 5-year warranty
✓ Compatible with nearly all laptops and desktops via 2.5″ form factor
✓ Built on Samsung’s proven V-NAND technology for consistent performance

Why We Recommend It

This SSD strikes the perfect balance between speed, capacity, and durability. Whether you’re upgrading an older system or adding fast storage to a new build, the 1TB capacity gives you ample space for your OS, apps, and media without breaking the bank.

Best For

General users, students, and professionals who need dependable, high-performance storage in a widely compatible format.

Pros and Cons

Pros:
  • Exceptional real-world performance
  • Long lifespan with high TBW rating
  • Trusted brand with excellent support
  • Easy installation in most systems
Cons:
  • Slightly pricier than budget drives
  • Limited to SATA speeds (not NVMe)

Customer Reviews

Customer Review: “I got this Samsung 500gb 2.5″ SATA SSD to upgrade from the 512gb HDD in an old HP Pavilion laptop (model HP 15-f233wm). It’s a perfect fit and works great. It’s made the old device MUCH faster and improved the overall performance immensely.”

Customer Review: “Its a shame SATA III will likely be disappearing in the next 5 to 7 years, the form factor is so much nicer than NVMe and it is still more than fast enough for like 99 percent of people.”

⭐ Editor’s Choice

2. Samsung Electronics 870 EVO 2TB 2.5 Inch SATA III Internal SSD

Samsung Electronics 870 EVO 2TB 2.5 Inch SATA III Internal SSD

If you’re serious about storage and want future-proof capacity, the Samsung 870 EVO 2TB answers the question what size SSD should I buy with confidence. With double the space of the 1TB model and the same legendary reliability, it’s ideal for content creators and power users.

Key Features That Stand Out

✓ Massive 2TB capacity for large files, games, and backups
✓ Same top-tier 560/530 MB/s SATA III performance as smaller models
✓ Up to 2,400 TBW endurance—built for heavy workloads
✓ 5-year limited warranty and Samsung Magician software support

Why We Recommend It

When you need more room without sacrificing speed or quality, this is the SSD to get. It handles 4K video editing, large game libraries, and multitasking with ease—all while maintaining Samsung’s reputation for stability.

Best For

Content creators, gamers with large libraries, and anyone who refuses to constantly manage storage space.

Pros and Cons

Pros:
  • Huge storage in a compact 2.5″ drive
  • Consistent performance under load
  • Excellent long-term value per gigabyte
  • Reliable brand with strong warranty
Cons:
  • Higher upfront cost than budget options
  • Overkill for basic web browsing or office tasks

Customer Reviews

Customer Review: “I got this Samsung 500gb 2.5″ SATA SSD to upgrade from the 512gb HDD in an old HP Pavilion laptop… It’s made the old device MUCH faster and improved the overall performance immensely.”

Customer Review: “Its a shame SATA III will likely be disappearing in the next 5 to 7 years, the form factor is so much nicer than NVMe and it is still more than fast enough for like 99 percent of people.”

💰 Best Budget

3. Western Digital 1TB WD Blue SA510 SATA Internal Solid State Drive SSD

Western Digital 1TB WD Blue SA510 SATA Internal Solid State Drive SSD

The WD Blue SA510 1TB offers fantastic value for those wondering what size SSD should I buy on a budget. It delivers solid SATA III performance at a lower price point, making it a smart pick for everyday upgrades.

Key Features That Stand Out

✓ Reliable 1TB capacity for OS, apps, and personal files
✓ SATA III interface with up to 560 MB/s read speeds
✓ Low power consumption improves laptop battery life
✓ Includes Acronis True Image backup software

Why We Recommend It

You don’t need to spend a fortune to get fast, dependable storage. This drive is perfect for replacing an aging HDD in a laptop or adding secondary storage to a desktop—without compromising too much on quality.

Best For

Budget-conscious users, students, and anyone upgrading from an HDD for the first time.

Pros and Cons

Pros:
  • Great price-to-performance ratio
  • WD reliability and customer support
  • Energy efficient design
  • Easy cloning with included software
Cons:
  • Not as fast as NVMe drives
  • Lower TBW rating than premium models

Customer Reviews

Customer Review: “OK, besides the initial glitches with Windows, once I updated the SSD firmware with WD/Sandisk Dashboard the drive worked perfectly! I would still buy WD drives over others.”

Customer Review: “I recently replaced the original hard disk drive (HDD) in my Xbox One X with the Western Digital 1TB WD Blue SA510 SATA SSD, and the results have been nothing short of phenomenal.”

4. 1TB NVMe M.2 PCIe 4.0 SSD with Heatsink for Gaming and PS5 Expansion

1TB NVMe M.2 PCIe 4.0 SSD with Heatsink for Gaming and PS5 Expansion

For gamers and PS5 owners asking what size SSD should I buy for maximum speed, this NVMe drive is a game-changer. With blazing 7,350 MB/s read speeds and a built-in heatsink, it’s ready for high-performance workloads.

Key Features That Stand Out

✓ PCIe Gen4 x4 interface delivers up to 7,350 MB/s read speeds
✓ Includes heatsink for sustained performance during long gaming sessions
✓ PS5-compatible—officially supports Sony’s expansion requirements
✓ 1TB capacity fits dozens of modern games

Why We Recommend It

If you’re building a high-end PC or expanding your PS5, this SSD offers the speed and capacity you need without overpaying for premium brands. The included heatsink ensures thermal throttling won’t slow you down.

Best For

Gamers, streamers, and PS5 users who demand ultra-fast load times and seamless performance.

Pros and Cons

Pros:
  • Extremely fast PCIe 4.0 performance
  • Heatsink included—no extra purchase needed
  • PS5-certified compatibility
  • Great value for Gen4 speeds
Cons: