eufy Baby Monitor E21
$259.99 against $299.99, a difference of $40.
Owlet Dream Sock vs eufy Baby Monitor E21
Prices checked Oct 29, 2026 · Specs from official pages · No lab or field testing
Criterion by criterion
Points out of 10 on each scored criterion. Owlet Dream Sock: 1 wins · eufy Baby Monitor E21: 2 wins.
Verdict by profile
Owlet Dream Sock
9.0/10 against 8.9/10 on the same formula.
Owlet Dream Sock
FDA-cleared (maker) against not a medical device (maker).
Full comparison table
| Spec | ||
|---|---|---|
| Our score | ||
| Editorial score | 9.0/10 (Best in this row) | 8.9/10 |
| Rank in its category | #4 of 5, baby monitors | #5 of 5, baby monitors |
| Price and running costs | ||
| Price | $299.99 | $259.99 (Best in this row) |
| Subscription | Not required (optional: Optional Owlet360: $9.99/month after 7-day free trial (owletcare.com/pages/owlet360)) | Not required |
| Cost over 2 years | $299.99Device only: the plan is optional | $259.99 (Best in this row)Device only: no subscription required (maker) |
| Features | ||
| Video | No camera (sold separately) | 4K UHD (parent unit 5" 720p per Amazon title) (Best in this row) |
| Night vision | Not stated | Yes |
| Wi-Fi | 2.4 GHz Wi-Fi + Bluetooth (base station) | Not required |
| Two-way audio | Not stated | Not stated |
| App features | Owlet Dream App: live pulse rate & oxygen readings, health notifications, historical trends, sleep insights (no subscription) | Cry & loud-noise detection, temperature, 330° pan/60° tilt, 8x zoom, split-screen, share with 5 family members |
| Safety claims (maker) | ||
| Breathing alerts | Sock (pulse oximetry: pulse rate + oxygen level; maker does not claim breathing monitoring) | None claimed (cry/noise/temperature detection) |
| FDA status (maker) | FDA-Cleared (De Novo clearance); Medical-Grade Pulse Oximeter (Over-the-Counter) (Best in this row) | No FDA claim; no breathing monitoring |
| Design and storage | ||
| Local storage | Not stated | Not stated |
Highlighted: best value on a criterion we score.
Cost over 2 years = price + 24 months of the cheapest required plan, when the maker publishes both. Optional plans are left out. We never estimate a missing figure.
Questions
Which is better, the Owlet Dream Sock or the eufy Baby Monitor E21?
On our formula, the Owlet Dream Sock scores higher (9.0/10 against 8.9/10). It wins 2 of the 6 criteria we compare; the best choice depends on which criteria matter to you.
Which one is cheaper?
The eufy Baby Monitor E21, at $259.99 against $299.99 on the official stores on Oct 29, 2026.
Did you test both?
No. This comparison uses the makers' published specs and prices only, with the scoring formula from our methodology page.