Synology is a Taiwanese company founded in 2000 that specializes in network attached storage, backup appliances and surveillance recorders. Its DiskStation Manager (DSM) operating system is the most established in the category, covering Btrfs snapshots, cloud sync, and a Surveillance Station package that turns a NAS into a local network video recorder for IP cameras. Models with Intel or AMD processors run Container Manager, which is the usual way people self-host Home Assistant and similar services at home.
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UGREEN is a Chinese consumer technology company founded in Shenzhen in 2012, known for charging gear, cables and computer accessories. It entered network attached storage in 2024 with the NASync series, which became the highest-funded NAS campaign on Kickstarter. Its UGOS Pro operating system uses Btrfs by default and offers Docker containers, virtual machines and local AI photo recognition on the Intel-based models, alongside HDMI output and SD card slots that most rival NAS omit.
View UGREENEvery product from both brands
Each brand's full lineup, one above the other: tap any product for specs, compatibility and pricing.
Synology13
View all - NAS

DS124
4.4(222)$159.99 - NAS

DS1525+
4.4(105)$1309.99 - NAS

DS1823xs+
4.2(55)$2049.99 - NAS

DS1825+
4.0(51)$1486.99 - NAS
6% OFFDS223
4.6(597)$285.99$304.99 - NAS

DS223j
4.5(890)$209.99 - NAS

DS225+
4.6(261)$364.29 - NAS

DS2422+
4.2(33)$1999.99 - NAS

DS3622xs+
3.9(19)$3399.99 - NAS

DS423
4.4(173)$399.99 - NAS

DS425+
4.6(109)$579.97 - NAS
20% OFFDS725+
4.2(61)$659.99$829.99 - NAS
10% OFFDS925+
4.3(171)$799.77$889.99
UGREEN15
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AI NAS iDX6011 32GB
4.4(175)$2349.99 - NAS


AI NAS iDX6011 Pro 64GB
4.4(175)$5999.99 - NAS
11% OFF
NASync DH2300
4.5(780)$239.99$269.99 - NAS


NASync DH4300 Plus
4.2(338)£795.72 - NAS


NASync DXP2800 GT
4.6(1.2K)$509.99 - NAS
11% OFF
NASync DXP2800
4.6(1.2K)$389.99$439.99 - NAS


NASync DXP4800 GT
4.5(308)$659.99 - NAS
15% OFF
NASync DXP4800 Plus
4.6(634)$619.99$729.99 - NAS


NASync DXP4800 Pro
4.6(1.2K)$799.99 - NAS


NASync DXP480T Plus
4.5(308)£1678.50 - NAS
10% OFF
NASync DXP6800 Plus
4.5(308)$939.15$1043.50 - NAS
9% OFF
NASync DXP6800 Pro
4.4(175)$1099.99$1209.99 - NAS


NASync DXP6800 Ultra
4.4(175)$1449.99 - NAS
11% OFF
NASync DXP8800 Plus
4.4(175)$1342.99$1509.99 - NAS


NASync DXP8800 Ultra
4.4(175)$1779.99
