• Blog
  • Calculators
    • Camera Bitrate Converter | Record Time Calculator
    • Diffraction Calculator
    • DoF Calculator | Lens Equivalent
    • Shutter Speed to Shutter Angle Calculator
  • Memory Cards
    • SD Memory Cards Guide
    • CFExpress Type-B Memory Card Benchmarks
    • CFexpress Type-A Memory Card Benchmarks
    • Memory Cards For Canon Cameras
    • Memory Cards For Fujifilm Cameras
    • Memory Cards For Nikon Cameras
    • Memory Cards For Panasonic Cameras
    • Memory Cards For Sony
    • SD Cards For GoPro
  • Accessories
    • Canon
      • Canon R5 Accessories
      • Canon R6 Accessories
      • Canon EOS R
      • Canon RP
      • Canon M50 Accessories
      • Canon T7i / T6 / T6i / T6s
      • Canon SL3 / 250D
      • Canon M6 II
      • Canon M5
      • Canon G1X III
      • Canon G7X III
    • Nikon
      • Nikon Z9
      • Nikon Z6 II / Z7 II
      • Nikon Z6 / Z7
      • Nikon Z50
    • Fujifilm
      • Fujifilm X-H2s
      • Fujifilm X-H2
      • Fujifilm X-T5
      • Fujifilm X-T4
      • Fujifilm X-S10
      • Fujifilm X-Pro3
      • Fujifilm X-T3
      • Fujifilm X-H1
      • Fujifilm X-T200
      • Fujifilm X100V Accessories
      • Fujifilm X100F Accessories
      • Fujifilm X-E4
      • Fujifilm XT30 & XT20
    • Leica
      • Leica M11 Accessories
      • Leica Q2 Accessories
    • Panasonic
      • Panasonic GH5 / GH5s
      • Panasonic LX100 II
    • Ricoh
      • Ricoh GR III
    • Sigma
      • Sigma fp
    • Sony
      • Sony A1 Accessories
      • Sony A7IV Accessories
      • Sony A7c Accessories
      • Sony A7sIII
      • Sony A7rIV / A9II
      • Sony A9
      • Sony A7 III, A7r III Accessories
      • Sony A6600 Accessories
      • Sony A6100 Accessories
      • Sony A6000 Accessories
      • Sony RX1R II
      • Sony RX10 IV / RX10 III
      • Sony RX100 IV / RX100 V
    • Drones
      • Mavic 2 Pro
    • Camera Cleaning Gear
  • Lenses
    • Canon RF Lens List
    • Fujifilm G Lens List
    • Fujifilm XF Lens List
    • Leica / Panasonic / Sigma L Lens List
    • Leica M Lens List
    • Micro Four Thirds Lens List
    • Nikon Z Lens List
    • PL Mount Cine Lens List
    • Sony FF E Lens List
    • Sony APS-C E Lens List
  • Store
Alik Griffin
Alik Griffin
  • Blog
  • Calculators
    • Camera Bitrate Converter | Record Time Calculator
    • Diffraction Calculator
    • DoF Calculator | Lens Equivalent
    • Shutter Speed to Shutter Angle Calculator
  • Memory Cards
    • SD Memory Cards Guide
    • CFExpress Type-B Memory Card Benchmarks
    • CFexpress Type-A Memory Card Benchmarks
    • Memory Cards For Canon Cameras
    • Memory Cards For Fujifilm Cameras
    • Memory Cards For Nikon Cameras
    • Memory Cards For Panasonic Cameras
    • Memory Cards For Sony
    • SD Cards For GoPro
  • Accessories
    • Canon
      • Canon R5 Accessories
      • Canon R6 Accessories
      • Canon EOS R
      • Canon RP
      • Canon M50 Accessories
      • Canon T7i / T6 / T6i / T6s
      • Canon SL3 / 250D
      • Canon M6 II
      • Canon M5
      • Canon G1X III
      • Canon G7X III
    • Nikon
      • Nikon Z9
      • Nikon Z6 II / Z7 II
      • Nikon Z6 / Z7
      • Nikon Z50
    • Fujifilm
      • Fujifilm X-H2s
      • Fujifilm X-H2
      • Fujifilm X-T5
      • Fujifilm X-T4
      • Fujifilm X-S10
      • Fujifilm X-Pro3
      • Fujifilm X-T3
      • Fujifilm X-H1
      • Fujifilm X-T200
      • Fujifilm X100V Accessories
      • Fujifilm X100F Accessories
      • Fujifilm X-E4
      • Fujifilm XT30 & XT20
    • Leica
      • Leica M11 Accessories
      • Leica Q2 Accessories
    • Panasonic
      • Panasonic GH5 / GH5s
      • Panasonic LX100 II
    • Ricoh
      • Ricoh GR III
    • Sigma
      • Sigma fp
    • Sony
      • Sony A1 Accessories
      • Sony A7IV Accessories
      • Sony A7c Accessories
      • Sony A7sIII
      • Sony A7rIV / A9II
      • Sony A9
      • Sony A7 III, A7r III Accessories
      • Sony A6600 Accessories
      • Sony A6100 Accessories
      • Sony A6000 Accessories
      • Sony RX1R II
      • Sony RX10 IV / RX10 III
      • Sony RX100 IV / RX100 V
    • Drones
      • Mavic 2 Pro
    • Camera Cleaning Gear
  • Lenses
    • Canon RF Lens List
    • Fujifilm G Lens List
    • Fujifilm XF Lens List
    • Leica / Panasonic / Sigma L Lens List
    • Leica M Lens List
    • Micro Four Thirds Lens List
    • Nikon Z Lens List
    • PL Mount Cine Lens List
    • Sony FF E Lens List
    • Sony APS-C E Lens List
  • Store
  • Memory Cards

Best Memory Card For The Galaxy S8 & S8+

  • August 8, 2019
  • AGriffin

Best Memory Cards Galaxy S8, S8+

A speed test comparing all the most popular UHS-II and UHS-I memory cards in the Galaxy S8 and S8+ Phone.

Use this guide to find the best memory card for your needs.

 

Phone Camera Specs

Processor: Octa-Core Chipset

Memory Cards: UHS-I Single Slot

Rear Camera Front Camera
Sensor: 12MP 1/2.5″ Sensor: 8Mp 1/2.5″
Lens: f1.7 Lens: f1.7
Image Stabilization: Optical —
Video: 3840 x 2160p 60 fps —
35mm-Equivalent Focal Length: 26  —

 

Samsung Galaxy S8, S8+ – Amazon / BHphoto

Best Memory Cards Samsung Galaxy S10, S10+ – performance is very similar, I just tested way more cards.

 


Best Memory Cards For The Galaxy S8 & S8+ Phone


Unlike a lot of other sites that list memory cards for the Galaxy S8, I actually own and test them all.

 

There is a lot of confusion when it comes to testing SD memory cards in the Galaxy S8. Most of the benchmark software will test the emulated SD memory card which is not the real external memory card.

A1 SD allows you to test the real SD memory card. Many of the other programs will allow you to browse to find the external memory card in /storage/0000-0000 but I was then getting “access denied.” So A1 SD was my application of choice for doing these test.

 

Samsung Galaxy S8 Memory Card Speed Comparison

Memory card read / write speeds were tested using A1 SD in the Samsung Galaxy S8+ using the Long – Default test with the fastest results taken out of several tests.

Micro SD Memory Card Read Speeds Write Speeds
UHS-II – phone not capable    
Sandisk Extreme Pro 64GB UHS-II untested  untested
Lexar 1800x 64GB UHS-II untested  untested
Lexar 1000x 64GB UHS-II 70.88 MB/s 35.19 MB/s
Delkin 64GB UHS-II untested  untested
UHS-I    
Sandisk Extreme Pro 64GB U3 72.23 MB/s 68.48 MB/s
Sandisk Extreme Plus 64GB U3 73.25 MB/s 66.67 MB/s
Sandisk Extreme 64GB U3 78.13 MB/s 56.89 MB/s
Sandisk Ultra C10 – Old Version U1 38.79 MB/s 15.80 MB/s
Sandisk Ultra C10 – New Version 70.55 MB/s 31.40 MB/s
Lexar 633x 64GB U1 67.46 MB/s 23.54 MB/s
Lexar 300x 64GB U1 36.98 MB/s 22.64 MB/s
Transcend Ultimate 633x 64GB U3 65.67 MB/s 39.65 MB/s
Transcend Premium 400x 64GB U1 64.75 MB/s 22.87 MB/s
Transcend Premium 300x 64GB U1 65.53 MB/s 23.41 MB/s
Transcend High Endurance 20.21 MB/s 20.44 MB/s
PNY Pro Elite 64GB U3 65.15 MB/s 64.60 MB/s
PNY Elite U1 66.11 MB/s 28.69 MB/s
Samsung Pro+ 64GB U3 66.10 MB/s 68.37 MB/s
Samsung Pro 64GB U3 66.99 MB/s 62.67 MB/s
Samsung Pro Select 64GB U3 67.56 MB/s 68.47 MB/s
Samsung Evo 64GB U3 15.16 MB/s 20.17 MB/s
Samsung Evo Select 64GB U3 15.02 MB/s 18.42 MB/s
Samsung Evo+ 64GB U1 63.92 MB/s 19.35 MB/s
Samsung Evo Select 64GB U1 67.26 MB/s 20.62 MB/s
Samsung Evo 64GB U1 37.48 MB/s 20.62 MB/s
Delkin 64GB 65.44 MB/s 64.78 MB/s
Patriot 64GB U1 53.42 MB/s 19.50 MB/s
Netac Pro 64GB U3 62.48 MB/s 32.39 MB/s

 

 

Top 3 Fastest Write Speeds – Micro SD Memory Galaxy S8 / S8+

These are the best micro sd memory cards for the Galaxy S8, S8+ at writing data.

(Tested in-phone)


Sandisk Extreme Pro

Sandisk Extreme Pro 64GB Micro SD Memory CardThe Sandisk Extreme Pro is the fastest micro SD memory card for the Galaxy S8, S8+. Sandisk all around usually makes the best card and are a very trusted brand. Because this card is U3, it will be a great card even for future devices. – Amazon

 


Samsung Pro+

Samsung Pro+ Micro SD Memory CardThe Samsung Pro+ is the best micro sd memory card by Samsung that is UHS-I. In terms of performance and reliability, it’s up there with Sandisk. – Amazon

 

 


Samsung Pro Select

Samsung Pro Select Micro SD Memory CardThe Samsung Pro select is a newer card I’ve just added to the list. It’s very fast, not as fast as the other two, however, it can be found at a lot better of a price. – Amazon

 

 

 

 

Top 3 Fastest Cards Read Speed – Micro SD Memory Galaxy S8 / S8+

If you do mostly read access here are the best micro sd memory cards for S8, S8+ for read access.

(Tested in-phone)

Sandisk Extreme Pro

Sandisk Extreme Pro 64GB Micro SD Memory CardThe Sandisk Extreme Pro also has the fastest read speeds. All around it’s the best card for the Galaxy S8 / S8+. – Amazon

 

 


Sandisk Extreme Plus

Sandisk Extreme Plus 64GB Micro SD Memory CardThe Sandisk Extreme Plus has a great balance between performance and price. It’s a fantastic card and with both read and write speeds and comparable to the Extreme Plus when tested in the Galaxy S8. – Amazon

 


Sandisk Extreme

Sandisk Extreme 64GB Micro SD Memory CardIf you’re looking for the fastest sd card for read speeds in the Galaxy S8, this is it. This was the fastest card I tested for read speeds alone. It’s also a really good value between price and performance. – Amazon

 

 

 

Memory Cards and Brands To Avoid

The only cards that I would be cautious about would be any old cards, like the Sandisk Ultra – Old Version. That card ran very hot and its performance when testing was all over the place. In fact, avoid old versions of any card on Amazon. I think some have been labeled old even since I’ve purchased these so I’ll try to update as much as I can.

There is also Patriot and Netac Pro. I don’t know much about these brands so I wouldn’t trust them either. I actually gave one to my niece for her to use in her tablet, so I’ll know soon if there are any problems with them.

 

 

Memory Cards and Brands You Can Trust

The best all around brand seems to be Sandisk. However, Lexar, Transcend and Samsung are also great. It’s not uncommon for the cards made by Samsung to work best in Samsung devices. That’s the way Sony cards typically work. They may not be the fastest, but they usually are the most reliable.

 

 


Frequently Asked Questions


 

Will The Galaxy S8 Support 128GB and 256GB Cards?

Yes. The Galaxy S8 and S8+ support micro SD memory cards up to 256GB.

 

Does The Galaxy S8 / S8+ Support UHS-II Memory Cards?

While USH-II memory cards do work in camera, I see no speed improvements over standard UHS-I cards.

 

My Memory Card Is Slow Or Isn’t Working

There are a lot of counterfeit cards out there especially on Ebay, so make sure you buy your cards from a trusted source. If you buy on Amazon, buy from the manufacturer directly.

Sometimes cards can just be bad. It happens. Send it back for a replacement, or send it in for a warranty.

Be sure the card is clean and the connectors inside the phone are clean.

 

 


Best Micro SD Memory Cards For The Galaxy S8 / S8+ | Bottom Line


There are a lot of cards out there made by a lot of different brands. Some better than others. A lot of the top brands like Sandisk make the fastest cards, but also the most reliable. If you’re using your phone to access your SD card a lot (like installing games on it), then it may be useful to buy one of these faster cards.

If you’re just looking for a card that you can use for storing extra photos or video on, then there may be no need to break the bank, depending on your needs.

**This website contains affiliate links and I will be compensated if you click them to make a purchase.
AGriffin

Professional editor, blogger and photographer from Los Angeles California.

Related Topics
  • Galaxy S8
  • Memory Card Speed Tests
You May Also Like
New Lexar CFexpress Type B Cards
View Post
  • Accessory Reviews
  • Blog
  • Memory Cards
  • Reviews

Lexar 512GB Diamond & 2TB Gold CFxB Cards – Review & Benchmarks

  • AGriffin
  • March 24, 2023
Best Memory Cards Canon R8
View Post
  • Memory Cards

Best Memory Cards Canon R8

  • AGriffin
  • March 9, 2023
Best Memory Card Sony A7rV
View Post
  • Memory Cards

Best Memory Cards Sony A7rV

  • AGriffin
  • February 22, 2023
Best Memory Cards Canon R6 II
View Post
  • Memory Cards

Best Memory Cards Canon R6 Mark II

  • AGriffin
  • February 17, 2023

IG Landscapes @alikgriffin

IG Streets @griffinalik

Twitter Feed
It's happening. This is a photo from almost 2014 shot on the original A7r with the Sony Zeiss 35mm f2.8. Such an un… https://t.co/gSnjcQxvW7
yesterday
  • Reply
  • Retweet
  • Favorite
Follow
Popular Articles
  • New Lexar CFexpress Type B Cards 1
    Lexar 512GB Diamond & 2TB Gold CFxB Cards – Review & Benchmarks
  • 2
    Voigtlander 50mm f1.5 II Review & Sample Photos
  • 3
    Nikon Z 28mm f2.8 Review & Sample Photos
  • 4
    Tiffen Black Pro Mist Review – Is This The One?
  • BB2 Blower Review 5
    NiteCore BB2 Electronic Blower Review
Join The Fun! Sign Up To The Newsletter!


*You will need to confirm your email. Check your spam folder after hitting subscribe.

About Me

A professional freelance trailer editor. I've been blogging for a decade and this site focuses on benchmarking memory cards, camera accessories, and lens reviews. There will be a shift towards more education with color and editing so be sure to hit the bell in the bottom right to subscribe for updates. Read About to learn more.

Popular Lens Reviews
  • 1
    A Complete List Of Fujifilm Lenses | X-Mount
  • Nikon Z 50mm f1.8 S Lens Review 2
    Nikon Z 50mm f1.8 S Lens Review & Sample Photos
  • 3
    Meike 35mm f1.7 Review & Sample Photos
  • 4
    Kamlan 50mm f1.1 II Review & Sample Photos
  • 5
    Meike 35mm f1.4 Review & Sample Photos
Memory Card Guides | Benchmarks

Memory Cards For Canon R5

Memory Cards For Canon R6

Memory Cards For Nikon Z6II / Z7II

Memory Cards For Nikon Z5

Memory Cards For Fujifilm X-T4

Memory Cards For GoPro Hero 9

Memory Cards For GoPro Hero 8

Privacy Policy | Ethics Statement | Licensing

Copyright © Alik Griffin Inc. 2021

Input your search keywords and press Enter.

Manage Cookie Consent

We use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.

Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
View preferences
{title} {title} {title}