eufy Smart Lock C33, Fingerprint Keyless Door Lock with Handle, Built-in Wi-Fi, APP Remote Control, Biometric Door Knob for Entry Door, Auto Lock, IP53 Waterproof

Super easy to install and use
As the title says, it’s easy to install and use. Which is good because the directions were missing. That was my only issue and wasn’t really an issue because the directions are available online and there are plenty of video tutorials too. I really like how quickly it reads my fingerprint and unlocks. I also like the app control and the privacy lock from the inside.

The solution we needed, works, eufy support is bad.
We have a back door that has no pin lock, so we either have to make the hole to install one “smart lock” or lock it by hand. Unbranded locks had the lock for the knob, but recently eufy brought this model.I dont like to have like 50 apps for smart home, and we already have 2 eufy locks (that I moved to secondary doors after a bad experience with support).Lock works, pairing was easy, fingerprint its a hit and miss, but keypad works always. I like the privacy mode that you cant unlock the lock even having the code, when that physical switch is engaged.Previous models from eufy came with 4 batteries and the “extra cool and expensive” with 8. This came directly with 8 batteries.Take into consideration that the batteries are in parallels, it means that the lock will work with 4 batteries. and the second line of batteries are directly connected to the first pair. What this means? is important, more than ever, that use new batteries, all from the same brand, all together, when replacing the batteries, since they are connected 1:1 if one of the batteries is different voltage (used or different brand) will try to get energy from the other battery. This ends up draining both batteries and acid explosion inside the lock.One of our locks gets disconnected from wifi, but app shows it and shows battery is 100%, is not until you try to unlock or lock it that will print error in connection but then go back to “everything is ok”When we automatize the locks via Alexa, since the app informs that the lock is online, despite is not, a month went by that the locks wasnt locking during the night. after like 15 (literally) messages with support they told us to send the lock and then after they check will send another one. SO yes. leave your house without lock for like 30 days. Nice support move.Summarizing, if the lock works, and you don’t need support, this is a great product at a very nice price, if you have issues with the lock, you will save time by getting new one and moving on.

Fast and convenient
“Just got my new smart lock installed and wow, what a game changer! The installation guide was super clear—I had it up and running in no time. The lock itself feels incredibly sturdy and the quality is top-notch. Plus, the design is really sleek and innovative. Totally elevates the look of my front door!”

This model integrates the lock inside the door handle (this isn’t a separate deadbolt lock).The placement of the fingerprint sensor makes it pretty natural to put your thumb on it while grasping the handle.The sensor and mechanism react in under a second to unlock and then you can open the door with very little delay.On occasion the sensor will require a second try to recognize your fingerprint, but not too often, it’s pretty good really.This makes it a rather seamless way to walk through a locked door. (Provided you’re not wearing gloves.)(The exterior handle locks, while the interior handle always operates the latch directly and never locks.)The second, less seamless unlocking option, is entering a PIN on the touch sensitive numeric pad.At my house, we’ve given up on keys a long time ago: numeric keypad locks are so much more practical.No need to carry keys, look for them, fumble with them. Going into the garage from the yard? No need to go back into the house to get keys.Kids: they can’t lose the key.Giving a caretaker access? No need to have doubles of your keys made, no need to track physical keys.(But fingerprint is even less fuss.)For these two options, you add users who each get to register their fingerprint and get their own individual PIN.Since the PINs can be different, you can withdraw access for one person without needing to change other users’ PINs.(You can also limit access hours per user.)Third option is unlocking from the app over wifi, meaning you don’t even need to be present onsite.So if you need to have someone enter your house for some unforeseen emergency, they can call you up and you can let them in through the app.Another option is using an NFC smart card, though it supposedly only works with those sold by Eufy (separately), which I didn’t test.Yet another possibility is unlocking through Alexa or Google Assistant, which I also did not test.Last option is adding a guest user: they get a PIN (no fingerprint), which will be valid for a time period of your choosing.This is handy for allowing in someone that you’re not previously meeting in person (Airbnb, contractor, etc).Ultimate fallback option: there’s a physical key as well.Lift the rubber lid on top of the lock: it reveals a keyhole and USB-C port.(The latter is to power the lock from outside if the batteries have died.)The keyhole orientation is unusual: you’ll be pointing the key downward from above, rather than through the door as usual.This one is probably best left for infrequent and special circumstances.I might have preferred for this rubber cover to be on the bottom rather than the top: we’ll have to see how it copes with water and dirt over time.By default, the lock re-locks itself 2 seconds after opening.You can change that delay, or turn off auto-locking (in which case it stays unlocked until you lock it manually).Access and control through the app can be shared with others (e.g. family members / roommate).The recipient needs to install the Eufy Security app on their phone as well.You can give either admin or guest access.Admins have access to the lock settings.The account that initially installed the lock is the “owner”: other admins can’t remove the owner or change their PIN.Admins can add users (register fingerprints and PINs), but only the owner can “share” to add new admins.This all seems reasonable (though having just one owner makes some co-ownership cases a tad awkward).Installation is pretty straightforward, it doesn’t even require precise drilling or aligning.One note however: I wanted to retrofit a door with an existing deadbolt.This unit though requires a fair bit of vertical clearance above the handle: for the keypad on the outside and battery compartment on the inside.The typical spacing between handle and deadbolt isn’t quite enough, and I’m having to be creative.(Note orienting the keypad below the handle might work but it would be very awkward as the numbers would be upside down and harder to reach.)So if your door has an existing lock above the handle, that is likely going to be a much bigger project.I like that the Eufy brand is established. They have other internet connected products (cameras, vacuums, etc).I’d rather count on their expertise for cloud security expertise than some more obscure brands.The mechanics: unlike with a motorized deadbolt, in this model, the motor does not move the latch: it merely links or unlinks the handle from the spindle.When locked, the handle moves freely without turning the spindle.When unlocked, the handle moves the spindle.I like that the force pulling the spindle to open the door comes from your hand: no battery power is used moving the latch.I’ve owned at least two models of battery-powered deadbolts that struggled with sticking bolts: this one will avoid those issues entirely.The lock uses 8 AA batteries. 8 is kind of a lot.Other locks I’ve owned used only 4: but then as I said, they were under-powered.This one presumably won’t even need that much extra power.The first set of 8 batteries are provided in the box.Eufy seems to say the batteries will last an entire year (at 20 lock/unlocks per day), which sounds good (definitely annoying to change them, so great if they last longer).(8 spare batteries is a lot to have on hand when the time comes though, but the app is supposed to notify before they’re dead.)A few nice touches:-It gives you about 10 seconds to turn the handle after unlocking. After that time, auto-lock kicks in and re-locks the door.If you’re using the fingerprint scanner, you’ll turn the handle immediately, open the door, and then it will re-lock itself almost immediately.But if you’re fumbling with your phone to unlock the door, it does give you those extra few seconds to get to the handle before giving up and re-locking.-There’s a proximity sensor that triggers illumination of the keypad. It does so only from very close, but it otherwise doesn’t attract attention.-If wifi access is down, your phone can still connect and unlock by bluetooth if you’re nearby.PINs work for us even without internet access, unlike what another reviewer said.There is no proximity bluetooth unlock feature on this lock.Some other models can unlock as soon as you walk near with your phone, not this one.The keypad isn’t a screen, it won’t display messages, it won’t move digits around (I really wouldn’t want it too anyway).A screen would draw more power and would likely not be rated for as cold temperatures, on top of costing more, so I think this is the right design choice.(This one is rated for -30C for the outside assembly, -10C for the inside one, I like that.)There are a few things that could use more polish though.There seems to be a bug with notifications: if a lock is shared between two users, one of them turns notifications on and the other off, they will both get notifications apparently.There are only two notification sub-options (lock event, unlock event), so not sure why that screen needs a master toggle as well?Translations are partial. Accessibility with VoiceOver isn’t completely functional.The user signup flow is a bit frustrating: they send you an E-mail with a link, but have you also copy in a code from the E-mail,the link brings you to the web where they don’t make it too obvious you should return to the app when signup is complete, where you need to login again, after which you get to setup two-factor…It’s good to do things by the book since this lock may be securing your home, but it’s a bit heavy and potentially confusing in at least one spot.The beeps aren’t too intuitive: 1 or 2 or 3 or long beep. After a while you end up learning them,but it’s not clear why a long beep means successful unlock and same for auto-lock, while 3 short beeps mean fingerprint mismatch.You can turn them off if you like (though you get reduced feedback from the keypad then).Firmware updates are slow: the estimate the app gave was 17 minutes, during which you shouldn’t use your door.That’s a long time to be standing around and waiting to complete initial installation/testing.(Though I did since switch it to a stronger wifi network, perhaps that will help next time.)If you’ve disabled auto-unlock, you can lock the door manually.From outside, you can long press confirm on the keypad (not short press, the directions are wrong).From the inside, you can flick the privacy mode switch to on then off, which is a tad awkward, but entirely workable.You can put auto-unlock on a schedule.I’m guessing the point of this is to allow unrestricted access between certain hours, but it feels a bit convoluted/complex.You set a schedule for when you want auto-unlock active, which defines by omission the period where you want access unrestricted: perhaps it should be thought of the other way around?Note this will lock the door on a schedule, but never unlock it: you must still do that explicitly, all this does is have it refrain from re-locking itself.Privacy mode: there’s a physical toggle switch on the inside.When privacy mode is on, the door can’t be unlocked by fingerprint, PIN, or the app, only with the physical key.I imagine the purpose of this is for when you are inside and don’t want someone barging in.The usual unlock function through the app (that guests can use) is blocked, however admins can override privacy mode by turning it off in the app settings.If the door is open from inside, privacy mode is automatically turned off, so you don’t lock yourself out accidentally.(The button even gets moved physically, which I think is a very nice touch.)There is some minor confusion in that moving the button towards red is how you reveal the green, and what color means what anyway?I can see some great use cases for this, However in my case, I’m installing this on a garage door, and nothing really private goes on in there.I might find it more useful to have this physical button turn off auto-lock instead, for those afternoons where several people go in and out.(As it is, turning auto-lock off can only be done through the app.)Every toggle of the privacy mode switch results in a notification, even with notifications turned off, this is probably a bug (and there should be a separate notification setting toggle for those).If too many incorrect PINs are entered, the lock goes into a lockdown mode for 3 minutes where it won’t accept new attempts.(Can be configured in settings.)This is an important security measure as it prevents someone trying too many combinations and brute forcing your code.You do get a notification when this happens, as it’s good to know.However there seem to be no events recorded about failed attempts if there are fewer than the configured number to trigger the lockdown, so there’s no trace if someone is having issues or someone is trying your lock once in a while.The so called “scramble” function means you’re allowed to enter arbitrary digits before and/or after your code and it will still be accepted.(Configurable in settings.)I think the idea is you confuse watchers by entering a long sequence.Not the best name though, perhaps it should be called “extra digits” or something.So there are a few things that need polishing, but my complaints are minor and most of them can be improved with software/firmware changes.Overall I’m quite satisfied with the lock.The build quality seems solid, finish seems good, physical installation was uncomplicated.The handle feels smooth and solid in the hand and the unlocking sequence is quick and seamless.Great for a door that should stay locked most of the time, that you can still walk through almost as easily as if it weren’t locked: that part is satisfying.

Used this on my back door but switched to my main door when I saw how much better it was than my generic fingerprint door lock. While this is significantly more expensive, it is much better than what I had. My last lock had no app to control the settings and would autolock in 30 seconds which can be very annoying if you don’t need it to autolock. The fingerprint on the generic doorlocks are also not the most reliable, commonly taking multiple tries and requiring near perfect finger placement.The eufy is a step up from the generics. The finger print reader is so quick and accurate, I never had to make sure my angle was perfect or need perfect tries. I looked up the specs and they use a higher end reader which improves itself the more you use it, super cool. Another big difference is the app lets you control how long it takes before the auto-lock activates, if you want it to auto-lock in 10 or 30 minutes, you can set that option. They even added a new update where you can turn it off if you expect people coming in and out for a long time.The main complaint I havve is you need 8 batteries which is quite a lot. I am hoping they at least last a long time. Otherwise I’m pretty happy with this, it is more expensive than the generic locks but it is much snappier and just feels more responsive

This is another excellent Eufy product that installs easily and works very well. It has multiple options to open (fingerprint/code/app/key) and has little to no delay when opening. I have another lock from Weiser that also works well (https://www.amazon.ca/Weiser-Smart-Touchscreen-Satin-Nickel/dp/B085SPRM8D/), but definitely takes longer to open. I also like the fact that the Eufy automatically locks after you have opened it, so you never have to worry about forgetting to lock the door. A nice additional option is the ability to put in a guest pass to allow visitors (contractors, relatives, etc.) to gain entry for a set period of time. On another note, this one takes 8 AA’s to operate (included), but it does have a 1-year battery rating (20 locks/unlocks per day). The Weiser mentioned above takes four batteries, but usually goes through them in a little over a month. I guess the only negative I can think of is that this is not a deadbolt. If you are worried about that extra security, you may want to look at the Weiser mentioned above or this option from Eufy (https://www.amazon.ca/gp/product/B08P75DNB5/) which also works very well. Overall, I am very happy with this lock and had no issues installing or connecting. If you would like to upgrade your current lock(s), this is one you should definitely put on your buy list.RecommendedGood luck with your decision/purchase