NAS vs Cloud Storage: Which Is Better for Home Backup in 2026?
Google One and iCloud cost $10–30/month forever. A NAS costs $400–700 once and stores as much as you want. Here's the real cost comparison.
The cost comparison most people never do
Google One at 2TB costs $9.99/month — $120/year. Over 5 years that's $600, and you still own nothing at the end. A Synology 2-bay NAS with two 4TB drives costs roughly $500–600 upfront and provides 4TB of redundant storage (RAID 1) you own outright with no monthly fees. After 18 months, the NAS is cheaper. After 5 years, you've saved $200–400 and have a device that keeps serving you.
At higher storage tiers the math becomes more dramatic. 6TB on Google One is $29.99/month — $360/year. A 4-bay NAS with 4× 4TB drives provides 8TB of redundant storage for a one-time $700–900 and breaks even in under 3 years.
NAS vs cloud: honest comparison
| Factor | NAS | Cloud Storage |
|---|---|---|
| Upfront cost | $400–900 | $0 |
| Monthly cost | ~$2–4 (electricity) | $3–30+ |
| Break-even vs 2TB cloud | ~18 months | N/A |
| Upload/download speed | Local network (500–1000 MB/s) | Limited by internet (10–50 MB/s) |
| Access from anywhere | Yes (with setup) | Yes (built-in) |
| Privacy | You own the data | Third party holds data |
| Disaster recovery | Requires off-site backup too | Built-in geographic redundancy |
| Setup complexity | Moderate (1–2 hours) | None |
The 3-2-1 rule: NAS and cloud work together
Professional backup strategy uses the 3-2-1 rule: 3 copies of your data, on 2 different media types, with 1 off-site. A NAS fulfils the local redundant copy. Cloud storage fulfils the off-site copy. The right answer for serious data protection is not NAS OR cloud — it's NAS as your primary local storage and a cheap cloud tier (Backblaze B2 at $6/TB/month, or Amazon S3 Glacier) as your off-site insurance.
When cloud-only makes sense
Cloud-only is the correct choice if: you need less than 200GB (free tiers cover this), you travel frequently and can't rely on home infrastructure, you're not comfortable with any technical setup, or you need immediate disaster recovery without maintaining hardware.
Best NAS for home use
The Synology DS923+ is the best 4-bay home NAS in 2026 — DSM (Disk Station Manager) is the most polished NAS OS available, with photo management, file sync, and Plex media server all built in. For a smaller 2-bay entry point, the Synology DS920+ is the proven alternative with Intel Quick Sync for Plex transcoding.
Compare NAS systems →
2-bay and 4-bay NAS systems ranked by performance, software quality, and value.