Uploaded April 2025 | Updated September 2026, 1 week ago
Galaxy S25 Ultra VS iPhone 16 Pro Max. In this video, we put the fastest external SSD storage devices to the test to see which phone can transfer files the quickest! From Samsung to Apple, we're comparing the top smartphones on the market to find out which one reigns supreme in terms of external storage speed when reading writing copying data to an external SSD. Whether you're a content creator, gamer, or just someone who needs to transfer large amounts of video and picture files quickly, this video is for you! So, which phone will come out on top? Watch to find out!
Video chapters:
00:00 Intro
00:38 The test setup
01:50 S25 Ultra setup
03:27 SSD to S25 Ultra speed test
05:55 S25 Ultra to SSD speed test
06:53 iPhone 16 Pro Max setup
08:16 SSD to iPhone 16 Pro max speed test
10:32 iPhone 16 Pro Max to SSD speed test
11:42 Speed test results
13:40 End summary
Stuff used in the video:
iPhone 16 Pro Max ➡ geni.us/iPhone16Pro_Max
Galaxy S25 Ultra ➡ geni.us/S25_Ultra
Redmagic 10 Pro ➡ geni.us/Redmagic10Pro
iDsonix MC20 2TB USB-C SSD ➡ geni.us/IDSONIX-MC20
The stuff I use:
For the ACASIS website use the promo code TB20 for 20% off the TB501 and TB501 Pro. For everything else use the promo code David15 for 15% off. I don't know how long the TB20 promo code will last, if it is not working then use David15 for 15% off the TB501 and TB501 Pro.
ACASIS website:
TB501 Pro enclosure ➡ bit.ly/3XhDlTm
TB501 enclosure ➡ bit.ly/4fsUfEQ
TBU405Pro M1 Enclosure ➡ bit.ly/4i1edsR
TBU401 enclosure ➡ bit.ly/49PFnPu
4 Bay Thunderbolt 4 NVMe RAID enclosure ➡ bit.ly/3RfkG72
ACASIS on Amazon:
TB501 Pro enclosure ➡ geni.us/NRrRI7
TB501 enclosure ➡ Not available yet on Amazon
TBU405Pro M1 Enclosure ➡ amzn.to/41V6p62
TBU401 enclosure ➡ amzn.to/3DwYEta
WD SSDs:
SN850X 4TB ➡ geni.us/SN850X-4TB
SN850X 2TB ➡ geni.us/SN850X-2TB
SN850X 1TB ➡ geni.us/SN850X-1TB
Apple products:
M4 MacBook Air Amazon.com ➡ amzn.to/41RObko
M4 MacBook Air Amazon.co.uk ➡ amzn.to/4bFE5rl
M4 MacBook Air Amazon.de (Germany mainland Europe) ➡ amzn.to/3XWC7Nz
M4 Max MacBook Pro 16" ➡ geni.us/70Xn
M4 Max MacBook Pro 14" ➡ geni.us/57QzTfu
M4 Pro MacBook Pro 16" ➡ geni.us/qSYR
M4 Pro MacBook Pro 14" ➡ geni.us/4thf yu0
M4 MacBook Pro 14" ➡ geni.us/Y7TFR
Mac Mini M4 ➡ geni.us/oibaLH
Mac Mini M4 Pro ➡ geni.us/ImJto
AMAZON ASSOCIATE DISCLOSURE:
I am an Amazon Associate.
My Amazon links are Amazon affiliate links.
I earn money from qualifying purchases when you use my Amazon affiliate links.
OTHER EARNINGS AND COMMISSIONS:
I also earn money from other product links within my video description.
For the sake of clarity and for the avoidance of any confusion, assume that I earn money from commissions from any and all links that I have within my video description.
Amazon links to stuff used in this video:
The gear that I use, have used or reviewed that I would recommend.
Cameras: amzn.to/3PzC8mI
Microphones: amzn.to/3tD6FaM
Computers: amzn.to/3tuwHNr
Phones: amzn.to/3ttqjWN
iPads & Tablets: amzn.to/46t8wxG
You can also send me a coffee donation via PayPal if you found my video super helpful:
paypal.me/DavidHarry
My Amazon pages with videos and product links:
Amazon USA amazon.com/shop/davidharry
Amazon UK amazon.co.uk/shop/davidharry
If you would like to help my channel please use my global Amazon Affiliate links. I will be paid a small commission for anything you buy from Amazon when using these links. These commissions don't cost you any extra but really do help me to buy gear for my productions and to review:
Amazon USA: geni.us/Amazon-USA
Amazon UK: geni.us/Amazon-UK
Amazon Deutschland: geni.us/Amazon-Deutschland
Amazon France: geni.us/Amazon-France
Amazon España: geni.us/Amazon-Espana
Amazon Italia: geni.us/Amazon-Italia
Amazon Canada: geni.us/Amazon-Canada
Contact for product reviews: YouTube@DavidHarry.com
DavidHarry.com
I’m David Harry. Thank you very much for watching this video, take care and goodbye now.
Cheers,
Dave.
#DavidHarry#LiverpoolTV
Galaxy S25 Ultra VS iPhone 16 Pro Max. In this video, we put the fastest external SSD storage devices to the test to see which phone can transfer files the quickest! From Samsung to Apple, we're comparing the top smartphones on the market to find out which one reigns supreme in terms of external storage speed when reading writing copying data to an external SSD. Whether you're a content creator, gamer, or just someone who needs to transfer large amounts of video and picture files quickly, this video is for you! So, which phone will come out on top? Watch to find out!
Video chapters:
00:00 Intro
00:38 The test setup
01:50 S25 Ultra setup
03:27 SSD to S25 Ultra speed test
05:55 S25 Ultra to SSD speed test
06:53 iPhone 16 Pro Max setup
08:16 SSD to iPhone 16 Pro max speed test
10:32 iPhone 16 Pro Max to SSD speed test
11:42 Speed test results
13:40 End summary
Stuff used in the video:
iPhone 16 Pro Max ➡ geni.us/iPhone16Pro_Max
Galaxy S25 Ultra ➡ geni.us/S25_Ultra
Redmagic 10 Pro ➡ geni.us/Redmagic10Pro
iDsonix MC20 2TB USB-C SSD ➡ geni.us/IDSONIX-MC20
The stuff I use:
For the ACASIS website use the promo code TB20 for 20% off the TB501 and TB501 Pro. For everything else use the promo code David15 for 15% off. I don't know how long the TB20 promo code will last, if it is not working then use David15 for 15% off the TB501 and TB501 Pro.
ACASIS website:
TB501 Pro enclosure ➡ bit.ly/3XhDlTm
TB501 enclosure ➡ bit.ly/4fsUfEQ
TBU405Pro M1 Enclosure ➡ bit.ly/4i1edsR
TBU401 enclosure ➡ bit.ly/49PFnPu
4 Bay Thunderbolt 4 NVMe RAID enclosure ➡ bit.ly/3RfkG72
ACASIS on Amazon:
TB501 Pro enclosure ➡ geni.us/NRrRI7
TB501 enclosure ➡ Not available yet on Amazon
TBU405Pro M1 Enclosure ➡ amzn.to/41V6p62
TBU401 enclosure ➡ amzn.to/3DwYEta
WD SSDs:
SN850X 4TB ➡ geni.us/SN850X-4TB
SN850X 2TB ➡ geni.us/SN850X-2TB
SN850X 1TB ➡ geni.us/SN850X-1TB
Apple products:
M4 MacBook Air Amazon.com ➡ amzn.to/41RObko
M4 MacBook Air Amazon.co.uk ➡ amzn.to/4bFE5rl
M4 MacBook Air Amazon.de (Germany mainland Europe) ➡ amzn.to/3XWC7Nz
M4 Max MacBook Pro 16" ➡ geni.us/70Xn
M4 Max MacBook Pro 14" ➡ geni.us/57QzTfu
M4 Pro MacBook Pro 16" ➡ geni.us/qSYR
M4 Pro MacBook Pro 14" ➡ geni.us/4thf yu0
M4 MacBook Pro 14" ➡ geni.us/Y7TFR
Mac Mini M4 ➡ geni.us/oibaLH
Mac Mini M4 Pro ➡ geni.us/ImJto
AMAZON ASSOCIATE DISCLOSURE:
I am an Amazon Associate.
My Amazon links are Amazon affiliate links.
I earn money from qualifying purchases when you use my Amazon affiliate links.
OTHER EARNINGS AND COMMISSIONS:
I also earn money from other product links within my video description.
For the sake of clarity and for the avoidance of any confusion, assume that I earn money from commissions from any and all links that I have within my video description.
Amazon links to stuff used in this video:
The gear that I use, have used or reviewed that I would recommend.
Cameras: amzn.to/3PzC8mI
Microphones: amzn.to/3tD6FaM
Computers: amzn.to/3tuwHNr
Phones: amzn.to/3ttqjWN
iPads & Tablets: amzn.to/46t8wxG
You can also send me a coffee donation via PayPal if you found my video super helpful:
paypal.me/DavidHarry
My Amazon pages with videos and product links:
Amazon USA amazon.com/shop/davidharry
Amazon UK amazon.co.uk/shop/davidharry
If you would like to help my channel please use my global Amazon Affiliate links. I will be paid a small commission for anything you buy from Amazon when using these links. These commissions don't cost you any extra but really do help me to buy gear for my productions and to review:
Amazon USA: geni.us/Amazon-USA
Amazon UK: geni.us/Amazon-UK
Amazon Deutschland: geni.us/Amazon-Deutschland
Amazon France: geni.us/Amazon-France
Amazon España: geni.us/Amazon-Espana
Amazon Italia: geni.us/Amazon-Italia
Amazon Canada: geni.us/Amazon-Canada
Contact for product reviews: YouTube@DavidHarry.com
DavidHarry.com
I’m David Harry. Thank you very much for watching this video, take care and goodbye now.
Cheers,
Dave.
#DavidHarry#LiverpoolTV










