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Review · Kids & family

eufy Baby Monitor E21 review

A hybrid monitor with a 4K pan-and-tilt camera, a 5-inch parent screen and optional app viewing controlled by a physical Wi-Fi switch.

By the HearSmart research desk · Updated November 8, 2026

Performance (40%)
8.8
Ease of use (25%)
8.6
Value (35%)
8.6

eufy Baby Monitor E21 is the best hybrid here because it gives parents a real choice about Wi-Fi. The included 5-inch monitor connects straight to the camera, and a physical switch on the camera decides whether it also joins your home network for app viewing. With Wi-Fi on, eufy says you can share access with up to 5 family members, and video is encrypted with RSA-1024 and AES-128. The 4K camera pans 330 degrees, tilts 60 degrees and zooms up to 8x, which is useful for checking a lost pacifier from the hallway. Its 5,000 mAh battery runs the camera for about 9 hours unplugged, so it can go to a nap at a grandparent's home or keep working in a power cut. Active noise reduction cuts background noise by up to 20 dB. It does not track breathing or sleep, and a second camera adds $129.99. We compared documented features and published prices.

Who it is for

Parents who want a dedicated screen at night and phone access when they are out.

Price

$259.99 on the eufy US store when checked.

eufy Baby Monitor E21 $259.99
Quoted from the vendor pricing page on November 8, 2026.

Key features

  • 4K camera that pans 330 degrees, tilts 60 degrees and zooms up to 8x
  • 5-inch monitor that links directly to the camera
  • Physical Wi-Fi switch to keep the camera off your home network
  • Active noise reduction that lowers background noise by up to 20 dB
  • 5,000 mAh camera battery that runs about 9 hours unplugged

Strengths and weaknesses

  • Strength: Works as a private screen monitor or as an app camera
  • Strength: Battery camera moves to another room or a relative's home
  • Strength: App access can be shared with up to 5 family members
  • Weakness: No breathing motion tracking
  • Weakness: Split screen needs a second camera at $129.99
  • Weakness: More expensive than the Momcozy BM04 hybrid

Key facts

  • Price: $259.99 when checked
  • Camera: 4K, 330 degree pan, 8x zoom
  • Screen: 5 in
  • Camera battery: 5,000 mAh, about 9 hours

Where it ranks

eufy Baby Monitor E21 is No. 1 in our Best Baby Monitors verdict.

Alternatives we scored

Visit eufy.com · Questions or corrections: editorial@hearsmart.org