The discount on this 4TB WD Black SSD is so low, it feels criminal


A WD Black SN850X SSD on a green background

WD/ZDNET

The WD Black SN850X is an M.2 SSD rated for use in laptops and desktops, and if you’ve got a PC that you’ve been avoiding upgrading due to high SSD costs, now is the perfect time to buy. Right now at Best Buy, you cansave 65% on the 4TB model, bringing the price to $600. That’s a discount of over $1,100, bringing the cost closer to pre-AI pricing.

Also: Amazon Spring Sale live blog 2026: Real-time updates on the best deals

Don’t need that much storage space, or do you need more? The SN850X is also available in 1TB, 2TB, and 8TB capacities with their own steep discounts, so you can choose the version that best suits your needs now and gives you room to grow. Each version features read and write speeds of 7300 and 6600 MB/s, respectively, giving you much faster loading times in games, quicker app launches, and easier access to your most-used files. 

Also: SSD prices are crazy, but this 8TB WD-Black option is 67% off at Best Buy right now

The WD Black SN850X is tailor-made for premium gaming, featuring predictive loading to keep a game’s most-used assets at the ready for faster load times. The SSD is rated for read and write endurance up to 2400TB, which means you can completely fill your drive 600 times over before you have to worry about hardware failure. 

How I rated this deal 

Whether the AI bubble has finally popped or Best Buy is simply trying to move stock, a 65% discount on a 4TB SSD is a deal too tempting to pass up. Especially if your PC or laptop has been in desperate need of a storage upgrade that was put off due to eye-popping SSD prices. While the price may still be a bit rich for some, at $600, it’s much closer to pre-AI costs than I’ve seen in a very long time. That’s why I gave this deal a 5/5 Editor’s rating.

Amazon’s Big Spring Sale runs March 25-31, 2026. 


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Deals are subject to sell out or expire anytime, though ZDNET remains committed to finding, sharing, and updating the best product deals for you to score the best savings. Our team of experts regularly checks in on the deals we share to ensure they are still live and obtainable. We’re sorry if you’ve missed out on this deal, but don’t fret — we’re constantly finding new chances to save and sharing them with you at ZDNET.com


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We aim to deliver the most accurate advice to help you shop smarter. ZDNET offers 33 years of experience, 30 hands-on product reviewers, and 10,000 square feet of lab space to ensure we bring you the best of tech. 

In 2025, we refined our approach to deals, developing a measurable system for sharing savings with readers like you. Our editor’s deal rating badges are affixed to most of our deal content, making it easy to interpret our expertise to help you make the best purchase decision.

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Also: How we rate deals at ZDNET in 2026


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Amazon Fire Phone Jeff Bezos

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ZDNET’s key takeaways

  • Amazon is reportedly developing a new Fire Phone.
  • The previous model had several issues, including an inferior app store experience.
  • Under new supervision (and with more experience), Amazon can do better this time.

Well, I don’t know about you, but I certainly didn’t have “new Amazon smartphone” on my 2026 bingo card. As it turns out, according to Reuters, the retailer may be developing a new smartphone, internally known as “Transformer.” 

Those familiar with the industry will instantly draw parallels to Amazon’s previous smartphone effort, the Fire Phone from 2014. Appropriately, that phone ended up as part of a fire sale about a year later.

Now, in 2026, with no fewer than five phone brands in the US — Apple, Samsung, Google, Motorola, and OnePlus — Amazon faces a lot of competition. In fairness, it also has two fewer platforms to compete against. In 2014, Windows Phone and BlackBerry were still very much part of the smartphone conversation; these days, not so much.

The AppStore problem

But there’s one mistake Amazon made in its first effort that will absolutely torpedo its chances at succeeding — the Amazon AppStore and specifically the decision to forego Google Play services. Google is simply too valuable in too many lives to not support the platform. Oh, and the Amazon AppStore is terrible.

Also: What’s right (and wrong) with the Amazon Fire Phone

It has admittedly been a few years since I last inventoried the Amazon AppStore, but when I last checked, the Amazon AppStore was a wasteland of half-supported or unsupported apps, with two notable exceptions. Finance, home control, and communication apps were either absent or had not received updates for years prior.

The only apps in the Amazon AppStore that remained up to date were productivity apps (largely powered by Microsoft) and streaming apps. Those two categories work very well on the cheap, underpowered hardware that Amazon usually launches, and that’s fine. A coffee-table tablet is a nice thing to have lying around.

A spark of hope

Amazon Fire Phone

Liam Tung/ZDNET

But a phone is another animal entirely. If a tablet is a device to entertain, a phone is a device for everything else. One of the key reasons Windows Phone failed was its lack of an app ecosystem. The Senior Vice President of Devices and Services,  Panos Panay, is very familiar with that saga, so I’m hopeful that he will make the same arguments to the powers that be at Amazon. 

Honestly, if there is anyone who I think can pull off an Amazon phone revival, it’s probably Panay, who understands design and product development better than most, and to be perfectly honest, he’s my absolute favorite product presenter.

Also: Amazon Fire Phone review: Not a great smartphone

Of course, all of this is early days. This phone is being worked on internally, and even Reuters reports that it could get the axe long before it sees the light of day. Personally, I’m intrigued by the idea, but I sincerely hope that Amazon doesn’t make this the shopping phone it tried to build in 2014. 

If Amazon just wants to make a nice, well-built smartphone, with a skin that pushes Amazon content to the fore, I’m fine with that. But leaving Google behind is a mistake that Amazon cannot afford to make again. Fool me once, and all that.

So, if this phone is to have a chance at success, it needs to embrace Google services so it can be a phone that everyone can use. Amazon has the brand power to make a phone like this work, even up against juggernauts like Apple and Samsung, but it needs to approach this correctly, lest it end up in yet another Fire phone fire sale.





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