Nanit vs Owlet: Which Should You Buy?
These get compared constantly, and the comparison is usually wrong. They measure different things, in different ways, with different regulatory standing. Once that is clear the decision is straightforward.
The short answer
They are not really competitors. The Nanit is a camera that infers breathing motion from video. The Owlet Dream Sock is an FDA-cleared wearable that measures heart rate and blood oxygen with actual pulse oximetry. If you want a great video feed and sleep data, that is Nanit. If a clinician has given you a reason to watch your baby's vitals, only the Owlet does that.
Side by side
| Feature | Nanit Pro | Owlet Dream Sock / Duo |
|---|---|---|
| Typical price | from about $290 | about $300 sock, more for the camera bundle |
| What it measures | Breathing motion via camera | Heart rate and oxygen saturation |
| Worn by baby | No — band clips to clothing | Yes — sock on the foot |
| Regulatory status | Not a medical device | Dream Sock is FDA-cleared |
| Video | Overhead 1080p, whole crib | Camera sold in the Duo bundle |
| Subscription | Optional, for sleep analytics | Optional, for trends and history |
| Outgrown | Camera works indefinitely | Sock fits roughly to 18 months |
Both companies change pricing and subscription tiers regularly, and published figures vary between sources. Confirm current pricing before buying.
The distinction that actually matters
Nanit tracks breathing motion using computer vision and a patterned band. Owlet's sock uses pulse oximetry — the same optical technique behind the clip hospitals put on your finger — to read heart rate and oxygen saturation.
Those are different categories of information, and the marketing on both sides blurs it. Nanit does not measure oxygen. If a pediatrician has flagged a reason to monitor your baby's vitals — a preemie, a respiratory issue — the Nanit does not do that job, at any subscription tier.
Neither one prevents SIDS
This is worth stating plainly, because the anxiety these devices target is exactly what makes people misread them. FDA clearance means the Dream Sock passed a regulatory review for what it claims to measure. It does not mean it prevents anything, and the American Academy of Pediatrics has cautioned parents against treating consumer wearables as safety devices.
Safe sleep practice — firm flat surface, baby on their back, nothing else in the crib, room-sharing for the first six months — is what reduces risk. A monitor is information, not protection. Some parents find that information calming. Others find it makes them more anxious, particularly when false alarms happen, which they do.
The running costs
Both work for core functions without paying monthly. Both put the good analytics behind a subscription, and both have changed those tiers over time. Over two or three years, the subscription can approach or exceed the hardware price on either platform, so run that number rather than the sticker.
The Owlet has a second recurring cost people forget: the sock is outgrown, and the battery needs charging roughly daily. The Nanit camera keeps working as a plain video monitor indefinitely, which is the better long-tail value.
Who should buy which
Buy the Nanit for the overhead view of the whole crib, the sleep analytics, and a camera that stays useful into toddlerhood.
Buy the Owlet if you want real vitals rather than inferred motion — especially if a clinician has given you a specific reason.
Buy neither if what you actually want is to see and hear your baby. Most parents do not need vitals tracking or sleep analytics, and a strong camera with no subscription costs a fraction of either.
Common questions
Does the Nanit measure oxygen?
No. The Nanit tracks breathing motion using its camera and a patterned band. It does not measure heart rate or blood oxygen. Only a pulse-oximetry device like the Owlet Dream Sock does that.
Is the Owlet Dream Sock FDA approved?
It is FDA-cleared, which is not the same as approved. Clearance means it passed a regulatory review for what it claims to measure. It does not mean the device prevents anything.
Do either of these prevent SIDS?
No. Neither device prevents SIDS, and the American Academy of Pediatrics has cautioned against treating consumer wearables as safety devices. Safe sleep practice is what reduces risk.
Do you need a subscription for the Nanit or the Owlet?
Core functions work on both without one. Sleep analytics on Nanit and historical vitals trends on Owlet sit behind paid tiers. Both companies have changed those tiers, so check current terms.
Which lasts longer?
The Nanit camera, by a wide margin. It keeps working as a video monitor indefinitely, while the Owlet sock fits roughly to 18 months and needs charging about daily.
Can you use both together?
Yes, and some parents do — Nanit for the video and sleep data, Owlet for the vitals. It is an expensive combination, and worth asking whether you need both.
Before buying any baby gear, new or secondhand, it is worth a quick search of the CPSC recall database — models and their recall status change more often than you would expect. Check cpsc.gov/Recalls.