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Synology Nas 4 Bay Comparison - April 2026
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3 Best Value  9.5Excellent | 4  9.4Excellent | 5  9.3Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelSynology DS923+ 4-Bay Diskstation NAS (AMD Ryzen™ 4 Threads R1600 Dual-Core 4GB Ram 2xRJ-45 1GbE LAN-Port) | Model UGREEN NAS DXP4800 Plus 4-Bay Desktop NASync, Intel Pentium Gold 8505 5-Core CPU, 8GB DDR5 RAM, 128G SSD, 1x 10GbE, 1x 2.5GbE, 2X M.2 NVMe Slots, 4K HDMI, Network Attached Storage (Diskless) | Model Synology 4-Bay DiskStation DS423 (Diskless) | Model Synology 4-Bay Rackmount NAS RackStation RS422+ (Diskless),Black | Model Synology 2-Bay NAS DS223 (Diskless) |
BrandSynology | Brand UGREEN | Brand Synology | Brand Synology | Brand Synology |
Reviews | Reviews | Reviews  | Reviews | Reviews |
Tech Specs | ||||
product dimensions8.78 x 7.83 x 6.54 inches | product dimensions 10.14 x 7.01 x 7.01 inches | product dimensions 9 x 6.6 x 7.24 inches | product dimensions 21 x 15.75 x 5.45 inches | product dimensions 6.5 x 4.25 x 9.17 inches |
item weight8.05 pounds | item weight 8.34 pounds | item weight 4.87 pounds | item weight 13.28 pounds | item weight 2.82 pounds |
color- | color - | color Black | color Black | color Black |
item dimensions lxwxh- | item dimensions lxwxh - | item dimensions lxwxh 9 x 6.6 x 7.24 inches | item dimensions lxwxh 21 x 15.75 x 5.45 inches | item dimensions lxwxh 6.5 x 4.25 x 9.17 inches |
Available On | Available On | Available On   | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1SynologySynology DS923+ 4-Bay Diskstation NAS (AMD Ryzen™ 4 Threads R1600 Dual-Core 4GB Ram 2xRJ-45 1GbE LAN-Port)
Why we love it
Compact: Powerful in small size
Consolidate: 50TB of storage
Protect: Keep data safe
Main highlights- The performance you need Reduce transfer times with DS923+, designed to accelerate your workloads. Easily add faster networking and NVMe drives to further boost performance.
- Stunningly compact Powerful functionality in a tiny package, with room for 10GbE and dual NVMe drives.
- Store, share, and protect Manage all your documents, photos, and other files, back up applications and devices, and protect your physical assets with professional video surveillance.
- Keep your data safe Hardware and software engineered to protect your data — trusted by millions.
- Consolidate and share Flexibly store and organize 50 TB of data, then share with anyone.
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9.7
2UGREEN
UGREEN NAS DXP4800 Plus 4-Bay Desktop NASync, Intel Pentium Gold 8505 5-Core CPU, 8GB DDR5 RAM, 128G SSD, 1x 10GbE, 1x 2.5GbE, 2X M.2 NVMe Slots, 4K HDMI, Network Attached Storage (Diskless)
Why we love it
Massive 104TB storage capacity.
Easy setup with intuitive app.
Reliable data security.
Main highlights- Widely Compatible: UGREEN NASync is compatible with Western Digital, Seagate, Toshiba, and more third-party hard drives. Please check our compatibility list for full details. Note: Storage hard drives are not included and need to be purchased separately.
- User-Friendly App: Simple setup and easy file-sharing on Windows, macOS, Android, iOS, web browsers, and smart TVs, giving you secure access from any device.
- Super-Fast Transfers: Back up 1GB in less than a second using either the 10GbE network port or the 10Gbps USB ports.
- Secure Private Cloud: Retain 100% data ownership with advanced encryption to protect your files. Flexible permission management makes it easy to protect your privacy when collaborating with others.
- NAS Knowledge & Support Center: Any questions or issures, please contact Amazon Customer Service or visit the UGREEN Knowledge Center or the ‘Support’ section in the NAS app. There are also user manual, trouble shooting guide on the product page where Safety and Product Resources is.
- High-Performance NAS with Powerful Procesor: DXP4800 Plus is ideal for small offices, & More. You can enjoy smooth performance and seamless collaboration, while making use of advanced features like Docker and virtual machines. It works semalessly across every device inluding Windows, macOS, Linux, iOS, Android or Google services and so on.
- Better Way to Store Than External Drives: NAS offers centralized storage, automatic backups, remote access, and a wide range of RAID options for easy data recovery even if a drive fails. Massive Storage Capacity: Never worry about storage limits again. With up 136TB capacity, you can store 47 million photos or 92,000 movies! *Hard Drives not included.
- AI-Powered Photo Album: Automatically organizes your photos by recognizing faces, scenes, objects, and locations. It can also instantly remove duplicates, freeing up storage space and saving you time.
- 2-Year Warranty: Enjoy 2 years of protection with UGREEN. You will get 24h specialist support, 30-day free returns. We are here, standing with you. Please feel free to contact our specialist support.
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9.5
3Synology
Synology 4-Bay DiskStation DS423 (Diskless)
Why we love it
Secure remote access
Backup snapshots
Monitor protect home/biz
Main highlights- Versatile video surveillance - Protect your home or business with intuitive monitoring, archiving, and analysis tools for up to 30 IP cameras (need to purchase camera license separetly)
- Secure private cloud - Safely access and share files and media from anywhere, and keep friends, partners, or collaborators on the same page
- Comprehensive data protection - Back up your media and documents to multiple destinations, and leverage snapshots to protect against malware
- Check Synology knowledge center or YouTube channel for help on product setup and additional information
- 2-year warranty
Our ranking system
At bestchoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
