Comparing Synology NAS and cloud storage from Google, Amazon, and Dropbox

Synology DS218+
Synology DS218+ (Image credit: Rich Edmonds / Windows Central)

Network Attached Storage (NAS) companies like Synology are attempting to push more consumers away from cloud storage, in favor of local solutions that include setting up a unit in the home (or office) and throwing in a hard drive or two. Deciding whether or not a NAS or service provider is best for your needs depends on a number of factors. If the price is the only one you care about, a NAS wins by a country mile. But there are many other advantages and drawbacks to consider.

NAS vs. cloud: By the numbers

Synology NAS

Synology offers some affordable NAS solutions that can be set up for file storage and forgotten about (unless something goes horribly wrong with the unit). The DS218j is part of the latest generation (alongside the excellent DS218+, which was awarded a Windows Central Choice Award) and offers two bays for up to 24TB of storage capacity. The DS418j is a similar model but with four bays, allowing for a ridiculous amount of space to be made available with enough drives.

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CapacityNASDrivesTotalPrice per month over 5 years
$169.99 (opens in new tab)
2x 1 TB HDD
$59.99 (opens in new tab)
$289.97$0.0048 per GB
$169.99 (opens in new tab)
2x 2 TB HDD
$74.99 (opens in new tab)
$319.97$0.0027 per GB
$169.99 (opens in new tab)
2x 4 TB HDD
$123.01 (opens in new tab)
$416.01$0.0017 per GB
$169.99 (opens in new tab)
2x 8 TB HDD
$242.99 (opens in new tab)
$655.97$0.0014 per GB
$169.99 (opens in new tab)
2x 10 TB HDD
$384.04 (opens in new tab)
$938.07$0.0015 per GB
$169.99 (opens in new tab)
2x 12 TB HDD
$425.89 (opens in new tab)
$1,021.77$0.0007 per GB
$299.99 (opens in new tab)
4x 8 TB HDD
$242.99 (opens in new tab)
$1,271.95$0.0009 per GB
$299.99 (opens in new tab)
4x 10 TB HDD
$384.04 (opens in new tab)
$1,836.15$0.0010 per GB

Up to 24TB is priced with the DS218+ in mind, running in RAID 1. The latter 24TB and 30TB pricing reflect the inclusion of the DS418J and the use of RAID 5. We do not include the price of electricity and a working internet connection to keep the NAS online in the figures above.

Microsoft OneDrive

Microsoft only offers one storage plan for OneDrive that hits 1TB or above. It's a shame since the OneDrive integration into Windows is actually very easy to use and makes for a pleasant experience with web and mobile platforms.

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CapacityPer month1 year2 year5 yearsPrice per month over 5 years
1TB$5.83$69.99$139.98$349.95$0.0058 per GB

This single plan includes a full suite of Office apps too, which makes it compelling for anyone who needs to store some documents and get more done. That said, if you need more than 1TB of space, you will need to factor in additional cost for an external service (or NAS installation).

See Microsoft OneDrive plans

Google Drive

Google splits up its plans to cover different services and products, including Gmail, Photos, and Drive. A number of plans are available to suit various needs and requirements.

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CapacityPer month1 year2 year5 yearsPrice per month over 5 years
1TB$9.99$99.99$199.98$499.95$0.0083 per GB
10TB$99.99$1,200$2,400$6,000$0.010 per GB
20TB$199.99$2,400$4,800$12,000$0.010 per GB
30TB$299.99$3,600$7,200$18,000$0.010 per GB

As you can see in the chart, Google Drive can become rather pricey.

See Google Drive plans

Amazon Drive

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CapacityPer month1 year2 year5 yearsPrice per month over 5 years
1TB$5$59.99$119.98$299.95$0.0050 per GB
2TB$10$119.98$239.96$599.90$0.0050 per GB
4TB$20$239.96$479.92$1,200$0.0050 per GB
8TB$39.99$479.92$959.84$2,400$0.0050 per GB
10TB$49.99$599.88$1,200$3,000$0.0050 per GB
20TB$99.98$1,200$2,400$6,000$0.0050 per GB
30TB$149.98$1,800$3,600$9,000$0.0050 per GB

See Amazon Drive plans (opens in new tab)


Like Microsoft, Dropbox only offers a single plan that offers at least 1TB of space.

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CapacityPer month1 year2 year5 yearsPrice per month over 5 years
2TB$9.99$99.99$199.98$499.95$0.0041 per GB

Due to what Microsoft offers in its own plan, if you're considering Dropbox I'd highly recommend giving OneDrive and Office 365 a look.

See Dropbox plans

Keep it local with a NAS

Synology DS218+

Synology DS218+

A NAS device is that little black box located somewhere in the home or office that acts as a file server. It can be a PC, too, depending on how you configure the OS and hardware. What these machines are capable of is storing data, transcoding media and even running services like Plex. Small units can be purchased from companies like Synology and QNAP.

The most important thing to remember about a NAS is that it's local and it's managed by yourself. That cuts out any third-parties and lowers the risk of your data being compromised. I'm sure you're aware of all the issues with cloud storage with celebrities having their accounts broken into and sensitive data obtained by malicious individuals. With a NAS, you aren't relying on a service or company to gain access to files, because it's all on your local unit.

A NAS is cheaper in the long term, but be prepared to ride a learning curve.

Using a NAS can not only reduce costs over time, since you'll have no monthly subscription to pay out for, it also allows for future upgrades by replacing or adding more hard drives. The issue with this form of storage is the initial costs, which involve purchasing a diskless model, some hard drives, and accessories. There's also a steep learning curve, especially if you've never managed a NAS before.

Thankfully, companies like Synology are making it easier than ever to configure a NAS, but it's still not quite as straightforward as cloud storage. In the end, it's possible to create your very own cloud, which offers full control over backups, upgrades, storage capacity, and allowing others to use said storage.

Pros of NAS:

  • Cheaper in the long run.
  • Can be more secure.
  • Physical access to stored files.
  • Custom configurations and upgrades.
  • LAN is quicker.

Cons of NAS:

  • Learning curve.
  • Expensive initial setup costs.
  • Relies on internet service provider (IP changes, slow upload speeds).

Prepare for takeoff with cloud storage

OneDrive iPhone

OneDrive iPhone (Image credit: Windows Central)

Microsoft OneDrive, Dropbox, and Google Drive are all incredibly popular cloud services with millions of people relying on these companies for access and security. Setting up an account is easy, and getting started with any of these cloud storage solutions is even more straightforward. Simply pay a small sum up front, enter into an agreement, and you'll be able to get started.

While the initial cost of cloud storage is far lower than purchasing a NAS, there are no savings to be had in the long run. After paying out each month (or yearly) for cloud storage, you will reach a point where you overtake a NAS owner with the total overall cost since the subscription will cease to end unless you wish to no longer use the service. The cloud is truly magical, however, allowing one to access data wherever they may be, without having to keep a box running on electricity back at home.

Cloud storage is easy, but you'll eventually pay more for the luxury.

There's also less of a barrier when it comes to transfer speeds. A NAS can perform great on a local network, but downloading big files from afar can be affected by slow ISP upload speeds. With a cloud service, you're taking advantage of super-fast connections and can usually max out the download speed. That said when working with documents and other smaller files, this isn't much of a factor.

The thing about cloud storage is you never really know where or how it's stored (unless the company reveals said information). An issue arises when you wish to leave the service and cancel a subscription. Does your data get destroyed? How does one obtain confirmation that it's gone? Unlike a NAS where physical access is granted, there are a few unknowns to consider when looking at (and using) cloud storage.

Pros of the cloud:

  • Super-fast speeds
  • Easy to use.
  • Far cheaper initial costs.

Cons of the cloud:

  • Can be rather costly over time.
  • Rely on third-party to secure files.
  • No physical access to stored data.
  • No guarantee data is destroyed upon cancellation.
Rich Edmonds
Senior Editor, PC Build

Rich Edmonds was formerly a Senior Editor of PC hardware at Windows Central, covering everything related to PC components and NAS. He's been involved in technology for more than a decade and knows a thing or two about the magic inside a PC chassis. You can follow him on Twitter at @RichEdmonds.

  • meh, I use Windows 10 as  a NAS on my 20 acres, and Onedrive when off my land.
  • I have a synology NAS and OneDrive/Office for different reasons. The NAS is there for fast, local backup and recovery, but also for the applications it hosts - I have 2 IP cams that stream constantly to the NAS, HDHomeRun DVR recording TV to it, and it hosts a personal photo site I use to share photos with extended family and friends. I dont know that I would consider my data on my NAS safer than in OneDrive or other cloud service though.  I backup my most important photos and files to OneDrive for offsite backup - in case my house burns down, or a thief breaks in and steals my PC and NAS, flooding, etc. OneDrive is also great because of how its integrated into Windows and many apps for seamless storage and easy access anywhere. 
  • Forgot to mention as a con for NAS: all sorts of hazards like theft and fire.
  • You can prevent that with specific casings or off site redundancy.... Best is to have a NAS a remote private cold storage solution and a cloud backup....
  • You can prevent that with specific casings or off site redundancy.... Best is to have a NAS a remote private cold storage solution and a cloud backup....
  • A mate of mine solved that problem to a certain extent by putting a Nas in his shed, so the main nas in the house will back up to the one in the shed every night.     
  • There are cheaper Nas available, it does depend what it is being used ofr.  But for home use there are some cheap ones that do a good job.  i have an old Buffalo, it is a bit slow compared to modern ones, but it works ok.   
  • Cons for google drive -- ever trusting an ADVERTISING company with your data, it isn't as if google is tops on the trusted company list.
  • And yet a lot of companies use them. So tell me, who would you trust?
  • Need to add power consumption to this mix and if your local internet goes out your NAS is unavailable remotely.  
  • Yes, was just about to post the same. Availability, and power consumption (and the clutter) tilt it in favour of cloud for me.
  • If your local internet goes out, the cloud service is not available either unless you use mobile.  So it can be a problem both ways.
    TBH, the internet for most people in the U.K is getting more reliable,  it may slow down now and again, but it normally keeps working.  I know I had problems a few months ago and it took some sorting out, but all working now.  The main problem with remote accessing, certainly in the UK is that I.P addresses are normally dynamic.  so unless some sort of service is used  like NO IP is used and your router supports DDNS, you are stuffed.. There are providers that do give static I.P addresses in the UK, but it is normally an extra cost.
  • " If your local internet goes out, the cloud service is not available either unless you use mobile.  So it can be a problem both ways. " You can access your cloud data on your phone, you can give your or tablet or PC a hotspot from your phone to access your cloud data. NOT POSSIBLE WITH NAS
  • I've been using Onedrive for several years and personally I've found it to be dog-slow, espcially when uploading large files.  I've never experienced "super-fast speeds" when dowloading files either - never getting anywhere near to maxing my 200Mb cable line.  It frustrating that "the cloud" is so slow TBH
  • The other NAS related factor to consider is: The replacement costs for HD failures, or HD Upgrades to increase capacity! It happens, and never at a good time! When you factor in those replacement costs, it definitely will skew these ROI calculations! And that is only if you don't lose any data!!! If you do Lose Data, NO costs savings are worth it!!! This is a Non-Factor for Cloud storage, because its all managed for you...
  • Yes....backup in the case of hardware failure. RAID obviates this to a large extent, but failure of the chassis and controller itself is still an exposure. Neither NAS nor cloud in basic offerings offer recovery from accidental deletions.
  • ReadyNAS Raid 1 or 5 for redundancy then add a second ReadyNAS to implement the ReadyNAS offsite replication feature plus the ReadyNAS app store for backing up to the cloud. Check out the added ReadyNAS features such as ability to scan new files and to easily add / expand the number of disks. The faster units can add an expansion unit for more hard disks. Read up and checkout videos for even more features such as tracking and storing "versions" to prevent loss of data by accidental erasures. Probably over kill for a simple home use but a great solution for a "whole house" or small business solution. Best Wishes.
  • Is the first 24TB a typo? That looks like no RAID to me. That being said, its pretty amazing that a home NAS is pretty cheap when you get into the multi-TB, or that cloud is very expensive (especially Google). I think its really cool to have a private cloud storage but I just don't need much space at all, just ~3k photos, home videos, and docs easily fit at 30GB.
  • My household of 5 have Office 365 home ~$99 per year, I normaly renew during xmas microsoft store sales and I get it for ~$70 per year. WHtals good about it is that it comes with 1TB cloud storage for each family member. So, we get 5GB cloud stoarge + Office 365 on 5 PC, 5 tablets and 5 phones for $99 per year (retail) or $70 per year Xmas time pricing. That's about 0.0020 per GB