By Mia Chen, Family Safety & Smart Home Writer at Bestkid
Published September 14, 2026 · Product information checked September 14, 2026
If you are comparing Bestkid MD11 and MD12, start with one question: do you want a camera built into your door lock? Both models provide Child Safety Mode with a parent-set indoor PIN and several access methods for authorized adults. MD12 adds a built-in 2K camera and video doorbell; MD11 focuses on access control without an integrated camera.
This is a Bestkid-authored buying guide based on our current product documentation, not an independent hands-on test. It explains when each model may fit your household and what to check before ordering.
Key takeaways
- Choose MD11 if you want the indoor PIN and connected access features but do not need a camera in the lock.
- Choose MD12 if you also want an integrated 2K entryway camera and video doorbell.
- Both models support fingerprint, PIN, RFID card, Bluetooth app, built-in Wi-Fi and backup-key access for authorized users.
- Check the door dimensions and emergency-exit suitability before choosing either model.
- Different battery capacities alone do not establish which model lasts longer in your home.
MD11 vs MD12 at a glance
| Feature | MD11 | MD12 |
|---|---|---|
| Main purpose | Indoor exit control and smart access | Indoor exit control, smart access and entryway video |
| Child Safety Mode | Parent-set four-digit indoor PIN | Parent-set four-digit indoor PIN |
| Authorized adult access | Fingerprint, PIN, RFID, Bluetooth app, Wi-Fi and backup key |
