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4K video needs steady write speeds, shown by V30 or higher ratings.

This guide is built from Amazon product listings and maker specs, not our own testing, so confirm compatibility, speed ratings and current price on each product page.

Prices are approximate and were shown on Amazon.com on November 1, 2026; check the current price.

Last updated: November 1, 2026.

Quick Picks

Product Type Best for
SanDisk 256GB Extreme microSD microSD card (up to 245MB/s read) 4K video
Lexar 128GB Gold microSD (UHS-II, V60) UHS-II microSD card 4K video
GIGASTONE 256GB Micro SD (A2, V30) microSD card (A2, V30) 4K video
PNY 256GB PRO Elite microSDXC (A2, V30) microSD card (A2, V30) 4K video
Kingston Canvas Go Plus 256GB microSD microSD card (up to 200MB/s) 4K video
SIX M200 256GB Micro SD (190MB/s read) microSD card 4K video

Our Picks

1. SanDisk 256GB Extreme microSD

A SanDisk 256GB Extreme microSD (microsd card (up to 245mb/s read)), per the listing. It showed at about $75 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Check the A-rating and write speed.

Check on Amazon

2. Lexar 128GB Gold microSD (UHS-II, V60)

A Lexar 128GB Gold microSD (UHS-II, V60) (uhs-ii microsd card), per the listing. It showed at about $100 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Needs a UHS-II device for full speed.

Check on Amazon

3. GIGASTONE 256GB Micro SD (A2, V30)

A GIGASTONE 256GB Micro SD (A2, V30) (microsd card (a2, v30)), per the listing. It showed at about $85 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Lesser-known brand.

Check on Amazon

4. PNY 256GB PRO Elite microSDXC (A2, V30)

A PNY 256GB PRO Elite microSDXC (A2, V30) (microsd card (a2, v30)), per the listing. It showed at about $46 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Check read speed claim.

Check on Amazon

5. Kingston Canvas Go Plus 256GB microSD

A Kingston Canvas Go Plus 256GB microSD (microsd card (up to 200mb/s)), per the listing. It showed at about $84 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Check write speed.

Check on Amazon

6. SIX M200 256GB Micro SD (190MB/s read)

A SIX M200 256GB Micro SD (190MB/s read) (microsd card), per the listing. It showed at about $60 on Amazon.com on November 1, 2026.

Good for: 4K video. Watch out: Lesser-known brand.

Check on Amazon

How to Choose

Capacity

128GB to 256GB covers most uses. Check the maximum your device supports.

Speed rating

U3, V30 and A2 describe sustained video and app performance. Match them to your device.

Seller and fakes

Buy from a reputable seller to avoid counterfeit cards.

Frequently Asked Questions

Does a faster card help?

Only if your device can use the speed.

What is A2?

An app-performance rating useful for apps and games.

How do I spot fakes?

Buy from the official store or a trusted seller and test capacity.

Bottom Line

Choose V30 or higher, and a UHS-II card only for UHS-II devices.

More Storage Guides