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Door Locks · Head to head

Eufy FamiLock E32 vs Eufy FamiLock E40

Full Smart Door Locks comparison in 2026

Updated October 2026
Data from Amazon and official Eufy site.
2026 verdict
A smart lock decision here is really about whether you want the door watched, and on the lock alone the Eufy FamiLock E32 is the better value of these two.
Eufy FamiLock E32
Winner
Eufy FamiLock E32
$139.99$179.9922% OFF

Last recorded price

Buy on Amazon USA
It is the more affordable and the higher rated, it runs on eight AA batteries rated up to eight months against the built-in pack on the Eufy FamiLock E40, and it still delivers fingerprint, keypad, app and physical key entry plus Matter over Thread for Apple Home, Google Home, Alexa and SmartThings. The Eufy FamiLock E40 adds what the E32 leaves out: a 2K video doorbell camera, 3D face recognition, a 60 GHz radar motion sensor, IP65 weather resistance and a backup battery. Both keep local, subscription-free access control. Choose the Eufy FamiLock E32 for keyless entry on a tighter budget, and the Eufy FamiLock E40 if you want the camera, face unlock and doorbell in the same device.
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FeatureEufy FamiLock E32Eufy FamiLock E40Winner
Price$139.99$239.99Eufy FamiLock E32
Rating4.94.5Eufy FamiLock E32
Weather ResistanceIP53IP65Eufy FamiLock E40
Battery Life8 months6 monthsEufy FamiLock E32
Connectivity2.4 GHz WiFi, Bluetooth, Thread Protocol2.4 GHz WiFi, BluetoothEufy FamiLock E32
Lock/Unlock SystemRemote, Passcode, Fingerprint, Physical KeyRemote, Bluetooth, Passcode, Fingerprint, Face Recognition, Physical KeyEufy FamiLock E40
DoorbellNOYESEufy FamiLock E40
Warranty1.5 years1.5 yearsTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie

What the differences mean

Camera and doorbell

The Eufy FamiLock E40 has a 2K video doorbell camera with a 135 degree head-to-toe view, night vision and a 60 GHz radar motion sensor, plus 32GB of local storage. The Eufy FamiLock E32 is a camera-free deadbolt with no doorbell.

Unlock methods

Both take a fingerprint, a keypad passcode, the app and a physical key, and the Eufy FamiLock E32 stops there. The Eufy FamiLock E40 adds 3D face recognition, storing up to 50 faces locally, which makes hands-free entry its headline feature.

Power

The Eufy FamiLock E32 runs on eight AA batteries rated up to eight months, with no backup. The Eufy FamiLock E40 uses a rechargeable main pack rated up to six months plus an 800mAh built-in backup that keeps face, fingerprint and PIN entry alive when the main pack runs low.

Weather resistance

The Eufy FamiLock E32 exterior is IP53 rated from -22F to 158F. The Eufy FamiLock E40 steps up to IP65, which is the more reassuring rating for a door that takes driven rain.

Positioning

The Eufy FamiLock E32 is the more affordable of the two and the higher rated. The Eufy FamiLock E40 charges a premium for the camera, the face recognition and the doorbell built into the same exterior.

Which one to buy if

Winner
Eufy

Eufy FamiLock E32

22% OFF
Prime exclusive deal
$139.99
$179.99

Last recorded price

Buy on Amazon USA
  • + Price: $139.99
  • + Rating: 4.9
  • + Battery Life: 8 months
  • - Weather Resistance: IP53 vs IP65
  • - Lock/Unlock System: Remote, Passcode, Fingerprint, Physical Key vs Remote, Bluetooth, Passcode, Fingerprint, Face Recognition, Physical Key
Eufy

Eufy FamiLock E40

20% OFF
Prime exclusive deal
$239.99
$299.99

Last recorded price

Buy on Amazon USA
  • + Weather Resistance: IP65
  • + Lock/Unlock System: Remote, Bluetooth, Passcode, Fingerprint, Face Recognition, Physical Key
  • + Doorbell: YES
  • - Price: $239.99 vs $139.99
  • - Rating: 4.5 vs 4.9

What owners say

Eufy FamiLock E40 owners lead with installation, reporting a standard deadbolt swapped for it with a screwdriver in about 20 to 30 minutes using the in-app guide, and then with the 3D face unlock, which they describe as fast and reliable even in the dark and the rain. They like replacing a separate deadbolt and doorbell with one device, the loud chime, the notifications on every lock and unlock, and the local 32GB storage that avoids a monthly fee. Their caveats are that face recognition can miss someone who walks past without pausing, that the camera stream stays in the eufy app rather than Matter, and that storage cannot be expanded.

Upgrading from the Eufy FamiLock E32?

Moving up from the Eufy FamiLock E32 to the Eufy FamiLock E40 turns a keyless deadbolt into a doorbell, camera and lock in one. Both take fingerprint, keypad, app and physical key entry, both work with Matter over Thread into Apple Home, Google Home, Alexa and SmartThings, and both keep local access control with temporary and scheduled codes. The E40 adds a 2K camera with a 135 degree head-to-toe view, a doorbell button, 3D face recognition and a 60 GHz radar motion sensor, upgrades weather resistance from IP53 to IP65, and swaps the E32's eight AA batteries for a rechargeable main pack with an 800mAh backup. If you only want keyless entry, the E32 covers it for less; if you want the door to watch itself as well, the E40 is the step that adds the camera.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Eufy FamiLock E32
  • Eufy FamiLock E40

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Frequently Asked Questions

Which is better overall: Eufy FamiLock E32 or Eufy FamiLock E40?

The Eufy FamiLock E32 for keyless entry on a budget, since it is cheaper and runs longer on swappable AA batteries. The Eufy FamiLock E40 is the better lock if you want the 2K camera, video doorbell and 3D face unlock built in.

What is the biggest difference between the Eufy FamiLock E32 and the Eufy FamiLock E40?

The camera. The Eufy FamiLock E40 has a 2K video doorbell, radar motion detection and face recognition in the lock itself, while the Eufy FamiLock E32 is a camera-free fingerprint deadbolt.

Do both work with Apple Home and Matter?

Yes. The Eufy FamiLock E32 and the Eufy FamiLock E40 both support Matter, reaching Apple Home, Google Home, Alexa and SmartThings, and both need a Thread border router for the E32's Matter path. The E40's camera stream stays in the eufy app rather than Matter.

How long do the batteries last on each?

The Eufy FamiLock E32 runs on eight AA batteries rated up to eight months with no backup. The Eufy FamiLock E40 uses a rechargeable main pack rated up to six months plus an 800mAh backup that keeps face, fingerprint and PIN entry working.

Is the Eufy FamiLock E32 weatherproof?

Its exterior assembly is IP53 weather resistant and rated from -22F to 158F, while the interior is for indoor use. The Eufy FamiLock E40 goes further at IP65, so it suits a more exposed door.

Who should buy the Eufy FamiLock E40?

A household that wants one device to lock the door, answer it and record visitors without a subscription, and that values hands-free 3D face entry over the lower price of the E32.

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