What changes in practice?
When someone searches for " DECT vs Wi-Fi baby monitor ," they almost always want to know three things:
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Does it work well at home?
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Is it secure (cables and privacy)?
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Is it worth the money?
Furthermore, since this equipment is radio/communications, in Portugal you should always check the CE marking and the manual in Portuguese.
DECT/FHSS (without Wi-Fi): the "modern classic"
Strengths
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Direct connection between the baby's unit and the parents' unit (location).
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usually simpler to install
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less dependent on the router and Wi-Fi quality
Limitations
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It's not designed to be watched outdoors (without internet).
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Reach depends on the house (walls/floors).
Wi-Fi/app: the “connected monitor”
Strengths
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access via mobile phone (often outside the home)
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notifications, recordings, sharing with caregiver (depending on the model)
Risks/limitations
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It depends on the Wi-Fi network and the router.
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It requires extra digital security measures: passwords and updates.
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privacy issues (camera + account + cloud)
Which one to choose (by profile)
You want to "plug and play," without the headache: DECT/FHSS
Want to see the baby outside the house? Use Wi-Fi/app (with good digital security).
Large house/2 floors: prioritize models with good indoor reach (and real-world testing)
Physical security is the same in both.
Regardless of the technology:
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Cables and parts should always be kept out of reach (≥ 1 meter from the crib).
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Never mount the device inside/on the edge of the crib.
FAQ
Is Wi-Fi "worse"?
Not necessarily. It's different: it provides resources, but it requires good digital security practices.
What if I want the best of both worlds?
Look for models with a dedicated screen and optional app, but decide if you really need remote access (and configure it securely).