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Samsung & iPhone ✓ Verified Compatibility • Last checked: October 2026

Best Memory Card or USB for Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)

Format: microSD Card Max Capacity: 1TB – 1.5TB Best Size: 256GB Min Speed: A1 or A2 App Rating
Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot) compatible slot illustration
✓ Quick Answer: Get a 256GB SanDisk Extreme, Ultra, or Extreme PRO microSD card.
Good to know: This model HAS a microSD card slot. Pop the card in to instantly expand space for photos, videos, apps, and offline Netflix/Prime downloads.
⏱ How much does it hold? 128GB ≈ 30,000 photos / 100+ downloaded films • 256GB ≈ 60,000 photos • 512GB ≈ 120,000 photos Full size chart →
Compare Compatible Options Side-by-Side:
Choose size:
⭐ Recommended (Best All-Rounder) ££ • Mid-Range
256GB SanDisk Extreme microSD Card (Gold/Red)

256GB SanDisk Extreme microSD Card (Gold/Red)

Format / TypemicroSD UHS-I
Speed ClassU3 / V30 / A2
Speed Rating190 MB/s Read • 90 MB/s Write (manufacturer maximums)
EnduranceShock / Water / Temp Proof
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💷 Budget Pick (Great Value) £ • Budget
256GB SanDisk Ultra microSD Card (Red/Grey)

256GB SanDisk Ultra microSD Card (Red/Grey)

Format / TypemicroSD UHS-I
Speed ClassClass 10 / U1 / A1
Speed Rating140 MB/s Read • 20 MB/s Write
EnduranceStandard Everyday Use
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🚀 Premium (Max Pro Speed) £££ • Pro Grade
256GB SanDisk Extreme PRO microSD Card (Black/Red)

256GB SanDisk Extreme PRO microSD Card (Black/Red)

Format / TypemicroSD UHS-I
Speed ClassU3 / V30 / A2 (Pro)
Speed Rating200 MB/s Read • 140 MB/s Write (manufacturer maximums)
EndurancePro Action & Drone Grade
Buy 256GB on eBay → View on Amazon (seller listings) →

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Official Specifications, Formatting & Manual Source

Max Official Capacity: 1TB – 1.5TB (Tested up to 1.5TB)

Setup / Formatting: Plug & Play

Minimum Speed Class: A1 or A2 App Rating

Technical Note: SanDisk Ultra is great for photos and movies; choose SanDisk Extreme or Extreme PRO if you record lots of 4K video.

📋 Official Spec / Manual Source: Samsung UK Official FAQ — What Size Memory Card Does My Galaxy Device Accept? ↗

Need help formatting or fixing an error? See our guides for Windows 10/11, Mac, Dashcam/Camera Card Error Fix, or Garmin Card Degraded Fix.

Frequently Asked Questions: Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)

What memory card or USB stick do I need for Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

Get a 256GB SanDisk Extreme, Ultra, or Extreme PRO microSD card. Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot) uses a microSD Card rated A1 or A2 App Rating. This model HAS a microSD card slot. Pop the card in to instantly expand space for photos, videos, apps, and offline Netflix/Prime downloads.

What is the maximum SD card or USB size supported by Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

The official maximum supported capacity for Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot) is 1TB – 1.5TB (tested up to 1.5TB). For the best balance of price and reliability, our recommended sweet-spot size is 256GB.

How much video or how many photos will a card hold in Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

128GB ≈ 30,000 photos / 100+ downloaded films • 256GB ≈ 60,000 photos • 512GB ≈ 120,000 photos. Choosing 256GB gives plenty of headroom without overpaying.

Can I use a cheaper or slower card with Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

Use the SIM ejector pin to slide out the tray and place the microSD card in the secondary slot. SanDisk Ultra is great for photos and movies; choose SanDisk Extreme or Extreme PRO if you record lots of 4K video.

How should I format the memory card or USB stick for Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

Setup requirement: Plug & Play. Insert the card into your device. Most modern devices will recognize exFAT automatically without requiring manual formatting.

Does the memory card brand matter for Samsung Galaxy S20 / S20 FE / S10 / Note 20 (Has SD Slot)?

Yes. Unbranded or counterfeit marketplace cards frequently spoof their capacity or fail to sustain A1 or A2 App Rating write speeds, leading to corrupted recordings or 'Card Error' warnings. Stick to genuine, branded cards from a reputable retailer to ensure full manufacturer warranty coverage.

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