# eufy Baby Monitor E21 vs VTech RM5766HD Smart WiFi Baby Monitor: specs and price compared

A sourced, side-by-side comparison of the eufy Baby Monitor E21 (eufy) and VTech RM5766HD Smart WiFi Baby Monitor (VTech) among baby monitors. VTech RM5766HD Smart WiFi Baby Monitor is the cheaper of the two at $189.99.

## Side by side

| Spec | eufy Baby Monitor E21 | VTech RM5766HD Smart WiFi Baby Monitor |
| --- | --- | --- |
| US price | $259.99 | $189.99 |
| Brand | eufy | VTech |
| Released | 2024 | 2022 |
| Camera resolution | 4K UHD | 720p HD (camera); 480p on 5-inch display |
| Connectivity | Hybrid: WiFi 2.4 GHz (remote app access) + local wireless transmission (in-home, no internet required) | WiFi 2.4 GHz (app remote access) + local DECT 6.0 direct link to 5-inch parent display |
| Range (ft) | 1000 | 1000 |
| Battery hr | 15 | 3 |
| Night vision | Yes | Yes |
| Two way audio | Yes | Yes |
| Sensors | Motion detection; sound detection; temperature reading | Temperature reading; motion detection |
| Subscription | none | optional |

## Key differences

- Camera resolution: eufy Baby Monitor E21 4K UHD vs VTech RM5766HD Smart WiFi Baby Monitor 720p HD (camera); 480p on 5-inch display
- Connectivity: eufy Baby Monitor E21 Hybrid: WiFi 2.4 GHz (remote app access) + local wireless transmission (in-home, no internet required) vs VTech RM5766HD Smart WiFi Baby Monitor WiFi 2.4 GHz (app remote access) + local DECT 6.0 direct link to 5-inch parent display
- Battery hr: eufy Baby Monitor E21 15 vs VTech RM5766HD Smart WiFi Baby Monitor 3
- Sensors: eufy Baby Monitor E21 Motion detection; sound detection; temperature reading vs VTech RM5766HD Smart WiFi Baby Monitor Temperature reading; motion detection
- Subscription: eufy Baby Monitor E21 none vs VTech RM5766HD Smart WiFi Baby Monitor optional

## What reviewers say

**eufy Baby Monitor E21** — Only one whitelisted outlet — Good Housekeeping — published a genuine hands-on review of the exact eufy Baby Monitor E21. The GH reviewer tested it in her own home over a year, and it also won a 2025 Parenting Award with parent-tester feedback. The verdict is glowing but entirely qualitative, with no lab-measured numbers reported. Praise covers 4K clarity, 8x zoom, effective night vision, easy setup, a compact travel mount, and Wi-Fi-optional flexibility. Treat this as single-source and unverified against a second tester. (1 sourced review.)

## Sources

- eufy Baby Monitor E21: https://www.eufy.com/collections/baby-monitor (eufy.com, verified 2026-06-15)
- VTech RM5766HD Smart WiFi Baby Monitor: https://www.target.com/s?searchTerm=vtech+rm5766hd (target.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/baby-monitors/eufy-baby-monitor-e21-vs-vtech-rm5766hd/
Cite: Per The Front Desk Review, eufy Baby Monitor E21 ($259.99) vs VTech RM5766HD Smart WiFi Baby Monitor ($189.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/baby-monitors/eufy-baby-monitor-e21-vs-vtech-rm5766hd/
License: CC BY 4.0.