eufy Lists 9 Smart Locks; 5 Run Matter, 5 Have a Camera

eufy’s US store lists nine smart locks in three tiers: three S Series, four E Series and two C Series models. Five run Matter, so they can join Apple Home, Google Home, Alexa and SmartThings: the FamiLock S3 Max, FamiLock S3, E40, E34 and E32. Five have a 2K camera and doorbell: the S3 Max, S3, S330, E330 and E40.

Three unlock by palm vein, the E40 by face, and the rest lead with a fingerprint. Specs and claims below are eufy’s, from its product pages on eufy.com, read 6 November 2026, when list prices ran from $169.99 to $399.99 and six models showed a lower sale price.

The nine side by side

Model	Lead unlock	Camera	Matter / Apple Home	Connection	ANSI/BHMA	List price, eufy.com	Sale shown, 6 Nov
FamiLock S3 Max	Palm vein	2K HDR, 4-inch rear screen	Yes	Direct Wi-Fi	Grade 1	$399.99	$299.99
FamiLock S3	Palm vein	2K HDR	Yes	Direct Wi-Fi	Grade 1	$349.99	None
Video Smart Lock S330	Fingerprint	2K	No	Bridge (Chime, included)	Grade 3	$349.99	None
Smart Lock E40	Face	2K, 135°	Yes	Direct Wi-Fi	Grade 2	$349.99	None
Video Smart Lock E330	Fingerprint	2K	No	Direct Wi-Fi	Grade 3	$299.99	$229.99
FamiLock E34	Palm vein	None	Yes, over Thread	Direct Wi-Fi	Grade 1	$279.99	$179.99
Smart Lock E32	Fingerprint	None	Yes, over Thread	Direct Wi-Fi	Not given	$179.99	$139.99
Smart Lock C220	Fingerprint	None	No	Direct Wi-Fi	Grade 3	$169.99	$99.97
Smart Lock C33 (lever)	Fingerprint	None	No	Direct Wi-Fi	Grade 3	$169.99	$98.99

The four without Matter list Alexa and Google Assistant instead. List prices are each page’s price before coupon; grades come from each page’s comparison block, or for the E34 from the collection page.

Power and battery life

Model	Battery, as eufy states it	Battery life, eufy’s figure	Weather rating
FamiLock S3 Max (affiliate link to Amazon, opens in a new tab)	15,000mAh plus 4 AAA backup	5 months	IP65
FamiLock S3 (affiliate link to Amazon, opens in a new tab)	15,000mAh plus 4 AAA backup	5 months	IP65
Video Smart Lock S330 (affiliate link to Amazon, opens in a new tab)	10,000mAh rechargeable	3 months	IP65 (camera)
Smart Lock E40 (affiliate link to Amazon, opens in a new tab)	15,000mAh plus 800mAh backup	6 months	IP65
Video Smart Lock E330 (affiliate link to Amazon, opens in a new tab)	10,000mAh rechargeable	3 months	IP65 (camera)
FamiLock E34 (affiliate link to Amazon, opens in a new tab)	10,000mAh plus 750mAh backup	8 months	Not given
Smart Lock E32 (affiliate link to Amazon, opens in a new tab)	8 AA	8 months	IP53 (exterior)
Smart Lock C220 (affiliate link to Amazon, opens in a new tab)	8 AA	8 months	IP53
Smart Lock C33 (affiliate link to Amazon, opens in a new tab)	8 AA	8 months	IP53

The rechargeable video locks list the shortest battery life, 3 to 6 months; the AA models list 8. The E34 matches the AA models at 8 months from a rechargeable pack.

S Series: FamiLock S3 Max, FamiLock S3 and S330

The FamiLock S3 Max and S3 share palm vein unlocking, which eufy says reads your vein pattern in 0.6 seconds and stores the data on the lock, for up to 50 family members. Both have a 2K HDR night-vision camera with a 150° video doorbell, a door sensor for auto-lock, Matter and a Grade 1 rating. The S3 Max adds a 4-inch screen on the inside of the lock, which eufy says lets you check the front door without the app. When the main battery runs low, eufy says the four AAA batteries keep PIN code access working.

eufy notes that camera streams do not pass through Matter, and that these two can now use Matter and HomeBase 3 at the same time; neither works with HomeBase 2.

The Video Smart Lock S330 swaps palm vein for a fingerprint reader, with up to 50 fingerprints and 100 passcodes. It is the one model here that connects through a bridge: its Chime, included, adds microSD storage up to 128GB. It works with Alexa and Google Assistant, and its FAQ says it is not compatible with Apple HomeKit or Matter.

E Series: E40, E330, E34 and E32

• E40: face. eufy says it stores faces for up to 50 people, and that facial recognition unlocks the door but does not lock it. It adds a 2K camera with a 135° view, a doorbell, 32GB of built-in storage and a 60 GHz radar for motion. It supports Matter, but its FAQ says it cannot connect to HomeBase 3 and an outside smart home gateway at the same time.
• E330: fingerprint and camera. The S330’s sibling, with a 2K camera and doorbell but Wi-Fi in the lock instead of a bridge, and 8GB of built-in video storage. No Matter or HomeKit.
• E34: palm vein, no camera. The same 0.6-second palm vein claim as the S3, plus Matter over Thread. eufy says a Matter hub is required to reach Apple Home, Google Home, Alexa or SmartThings, and that Apple Home Key is not supported.
• E32: fingerprint, Matter over Thread. Eight AA batteries, which eufy rates at up to 8 months. It needs no eufy bridge, but eufy suggests a Thread border router, such as a HomePod mini or Apple TV 4K, for Apple Home.

What Thread adds and why a border router comes into it is set out in our Matter, Thread and Zigbee explainer.

C Series: C220 and C33

Both take eight AA batteries, store up to 50 fingerprints and 100 passcodes, connect to Wi-Fi directly and list a Grade 3 rating. The C220 is a deadbolt; the C33 is a handle-style lever lock, which eufy pitches for garage, side, office and basement doors. The C220 page also lists unlocking from an Apple Watch and by voice through Alexa or Google; the C33 page says it accepts only eufy’s own encrypted NFC cards. Neither works with Matter or Apple HomeKit. eufy sells the C220 in black and nickel.

Door fit and a flat battery

The deadbolt pages list doors 35 to 55 mm thick. eufy says most of its locks replace a standard single-cylinder deadbolt, that none fit mortise locks or round faceplates, and that its support can send a round drive-in faceplate. The S3 Max, S3 and E40 pages advise against fitting them behind a storm door, which may block the camera.

eufy says every lock comes with two physical keys. The E330, S330, C220 and C33 describe a port on the outside to power the lock from a power bank, and the S3 pair, E40 and E34 switch to a backup battery on their own. Which of those failsafes matters, and where to keep it, is covered in what happens when a smart lock’s battery dies. Our Kwikset smart lock guide sets out that lineup the same way, and eufy’s cameras are in our eufy camera lineup guide.

Who each one suits, by the specs

• Palm vein, a camera and a screen inside: the FamiLock S3 Max; without the screen, the FamiLock S3.
• Face unlock with a camera and Matter: the E40.
• Palm vein and Matter without a camera: the E34.
• A fingerprint, a camera and microSD storage: the S330; without the bridge, the E330.
• Matter on AA batteries: the E32.
• A plain Wi-Fi fingerprint deadbolt: the C220; a lever handle: the C33.

Questions people ask

Which eufy smart locks work with Apple Home?

Five, through Matter: the FamiLock S3 Max, FamiLock S3, E40, E34 and E32. eufy says the E34 and E32 use Matter over Thread, so they need a Matter hub or Thread border router such as a HomePod mini. The E34 page says Apple Home Key is not supported.

What is the difference between the eufy FamiLock S3 and S3 Max?

Both unlock by palm vein, have a 2K HDR camera and video doorbell, a 15,000mAh battery with four AAA backups, IP65 and an ANSI/BHMA Grade 1 rating. The S3 Max adds a 4-inch display on the inside of the lock, so you can see the front door without the app.

What is the difference between the eufy S330 and E330?

Both are fingerprint video locks with a 2K camera, doorbell, 10,000mAh battery and Grade 3 rating. The S330 comes with a Chime bridge that adds microSD storage up to 128GB, and eufy says it has extra detection and auto-locks when the door closes. The E330 connects to Wi-Fi directly and stores video on 8GB built in.

Do eufy smart locks need a bridge or hub?

Eight of the nine connect to Wi-Fi directly. The S330 uses a Chime bridge, which comes in the box. For Apple Home, Google Home, Alexa or SmartThings through Matter, the E34 needs a Matter hub, and eufy suggests a Thread border router for the E32.

What happens if a eufy smart lock’s battery dies?

eufy says every lock has a physical key, with two in the box. The E330, S330, C220 and C33 pages describe a port on the outside for emergency power. The S3 Max, S3, E40 and E34 carry a backup battery that keeps PIN access, and on some models palm or face, working.

Do eufy smart locks have a monthly fee?

eufy says its locks store fingerprints, palm vein data and video locally, on the lock or a HomeBase, with no monthly fee. The E330 and S330 pages note that cloud features such as thumbnail previews in notifications send images to the cloud.

Will a eufy smart lock fit my door?

Most replace a standard single-cylinder deadbolt; the C33 is a handle-style lever lock. The deadbolt pages list doors 35 to 55 mm thick. eufy says none fit mortise locks or round faceplates, though support can supply a round drive-in faceplate.