Best vitals tracker — heart rate and oxygen monitoring with no monthly fee
Smart sock that tracks heart rate and oxygen plus a Wi-Fi camera — all with no subscription.
Full Review
The eufy Smart Sock bundle is the value play in the wearable
monitor space. You get a vitals-tracking sock (heart rate,
blood oxygen, sleep patterns) plus a 2K Wi-Fi camera —
all with zero subscription fees. Every feature is included in
the purchase price. No monthly $10 to see your baby’s heart
rate trends, no annual fee for video review. That alone
differentiates it from Nanit and Owlet.
The 2K camera is the highest resolution in this roundup,
and the cry detection feature sends notifications when it
detects distress (not just movement or sound). The sock tracks
the same vitals as the Owlet — heart rate, oxygen levels,
sleep duration — without the FDA clearance or the
ongoing cost.
The “without FDA clearance” caveat matters. The Owlet went
through the regulatory process to get its readings certified;
eufy did not. For most parents, the readings are accurate
enough for peace of mind. For parents with medical concerns
(premature babies, known conditions), the Owlet’s FDA
clearance provides a higher standard of assurance. The sock
fit can also be fiddly on very small or very active babies.
But for the price-to-feature ratio with no subscriptions,
the eufy bundle is remarkably compelling.
| Type | Smart Sock + Wi-Fi Camera |
| Video Resolution | 2K |
| Display | Smartphone app + 5″ dedicated display |
| Night Vision | Yes |
| Two-Way Audio | Yes |
| Room Conditions | Yes |
| Sleep Tracking | Yes — heart rate, oxygen, sleep patterns |
| Range | Unlimited (Wi-Fi) |
| Subscription | None required — all features included |
| Price Range | $$$ |
What We Like
- Tracks heart rate and blood oxygen with no subscription
- 2K camera resolution — highest in this roundup
- No monthly fees for any features
- Includes both smart sock and camera
- Cry detection and sleep tracking included
Worth Noting
- Sock fit can be tricky on very small or active babies
- Not FDA-cleared (unlike Owlet)
- Requires Wi-Fi for full functionality
Pragmatic Value Framework
Every product on this site is evaluated using our
Pragmatic Value Framework — a structured scoring system
that measures real value, not sticker price. Higher is better across all dimensions.
| Type | Factor | What We Ask | Weight | Score | Weighted | |
|---|---|---|---|---|---|---|
| BEN | Core Function | Does it do the job well? | ×2 | 4/5 | 8 | |
| BEN | Durability | How long will it actually last? | ×2 | 3/5 | 6 | |
| BEN | Time Savings | Does it reduce ongoing effort? | ×1 | 2/5 | 2 | |
| COST | Purchase Price | Score 5 if cheapest option | ×2 | 2/5 | 4 | |
| COST | Maintenance & Replacement | Score 5 if lowest upkeep + longevity | ×2 | 3/5 | 6 | |
| COST | Opportunity Cost | Score 5 if best use of this money | ×1 | 2/5 | 2 | |
| Pragmatic Score | 28 | |||||
Heart rate, oxygen, 2K camera, and no required subscription are a strong vitals-plus-video package. Upfront cost is high, sock fit can take trial and error, and Wi-Fi dependency adds setup friction compared with dedicated RF monitors.
Frequently Asked Questions
Is the eufy Security Baby Monitor Smart Sock with Wi-Fi worth buying?
Heart rate, oxygen, 2K camera, and no required subscription are a strong vitals-plus-video package. Upfront cost is high, sock fit can take trial and error, and Wi-Fi dependency adds setup friction compared with dedicated RF monitors.
What is the eufy Smart Sock best for?
Best vitals tracker — heart rate and oxygen monitoring with no monthly fee. Smart sock that tracks heart rate and oxygen plus a Wi-Fi camera — all with no subscription. Key advantages include: tracks heart rate and blood oxygen with no subscription, and 2k camera resolution — highest in this roundup.
What are the downsides of the eufy Smart Sock?
The main trade-offs to consider with the eufy Smart Sock are: sock fit can be tricky on very small or active babies; not fda-cleared (unlike owlet); requires wi-fi for full functionality. Weigh these against your priorities to decide if it is the right fit.
Compare with other baby monitors
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