A rare all-in-one smart lock that’s cheap to run, but not cheap to fit

Is the eufy Security Video Smart Lock E330 worth buying? Yes, if you want a single front-door device that combines a fingerprint lock, a 2K camera, and a video doorbell for £215.49, and you’re happy to accept its US/Canadian deadbolt fitment limits. It is also at its all-time lowest price, which makes the current deal more attractive than the spec sheet alone.

What first stands out about the E330?

The E330 is trying to replace three separate bits of kit with one unit: a smart deadbolt, a video doorbell, and a front-door camera. That matters because it reduces clutter, cuts down on installation points, and gives you one app-based view of who is at the door and whether the lock is engaged. eufy also makes a strong value argument by offering no monthly fee, which is important for buyers who are tired of paying subscriptions just to see their own doorbell footage.

At £215.49, the E330 sits in a competitive middle ground. It is cheaper than the Schlage BE499WBCEN619 Encode Plus at £343.43, and slightly cheaper than the eufy Security Smart Lock Touch at £221.46, while undercutting the SwitchBot WiFi Smart Lock Ultra with Keypad Vision at £239.99. On paper, that makes the E330 one of the more aggressive value plays in this category, especially because it bundles more functions than a standard lock.

How strong is the camera and doorbell side?

The headline camera spec is a 2K HD camera with an f/1.6 lens. That is the right direction for a front-door device because a brighter lens should help with detail capture around the porch, especially in lower light. 2K is also a meaningful step up from the basic 1080p cameras that still dominate budget doorbells, so faces, parcels, and movement should be easier to identify in the app.

The limitation is that the listing data does not provide a night-vision range, weatherproof rating, or storage capacity, so you cannot judge outdoor durability or local recording limits from the supplied specs alone. For a UK buyer, that missing information matters: if you need a lock that will sit exposed to rain, frost, and wind, you should confirm the ingress protection rating before buying. The product description does promise remote control from anywhere, but the app quality and recording reliability cannot be fully assessed from the data provided.

Is the fingerprint unlock actually the main attraction?

Yes, because the E330 is built around fast biometric entry rather than treating fingerprint access as an add-on. The listing says the fingerprint recognition is speedy and that the chip plus slim fingerprint film can recognise you “in the blink of an eye,” which suggests eufy is prioritising quick daily access over fiddly keypad use. In practical terms, that is exactly what many households want from a front-door smart lock: a fast unlock for family members, couriers, and trusted visitors without hunting for keys.

The lock also offers five ways to unlock, which is useful if fingerprints fail, a phone battery dies, or a guest needs temporary access. That flexibility is one of the E330’s best features because it reduces the risk of being locked out by a single point of failure. The built-in smart deadbolt and auto-lock function add another layer of convenience, though the listing does not specify the exact auto-lock timing, encryption standard, or whether any smart home platforms are supported.

Is the battery setup better than typical smart locks?

The E330’s single large rechargeable battery is a genuine advantage over systems that burn through replaceable cells. eufy says one battery covers all features, which means you are not juggling separate power sources for the camera and lock. That simplifies maintenance and should appeal to anyone who wants a lower-effort system.

The catch is that “one big battery” is only helpful if battery life is strong in real use, and the provided data does not give a runtime figure or backup duration. For a device that combines a camera, doorbell, and lock, battery performance is a critical buying factor. Without a stated backup window, you are relying on the manufacturer’s implementation rather than a measurable spec.

Is the build quality worth the price?

At £215.49, the E330’s value depends on whether you can use it in the first place. The listing says it is compatible with most standard US and Canadian deadbolt spacings and installs in 15 minutes without drilling. That is a major warning for UK readers: compatibility is not described for UK or Euro-profile doors, so this is not an automatic fit for British homes. If your door hardware does not match the listed spacing, the price is irrelevant because the product won’t be a practical option.

On the positive side, the design is aimed at easy installation and the all-in-one concept should reduce the amount of hardware hanging off the door. The downside is that the supplied information leaves out weatherproofing, lock certification, and smart-lock security standards, all of which are important when you are paying over £200 for an exterior access device.

How does the E330 compare with the competition?

Against the eufy Security Smart Lock Touch at £221.46, the E330 is slightly cheaper and more ambitious because it adds a 2K camera and doorbell functionality. If you only want a fingerprint deadbolt, the Touch may be the simpler buy; if you want a front-door security hub, the E330 gives more for less money.

Compared with the Schlage BE499WBCEN619 Encode Plus at £343.43, the E330 is far better value on price. Schlage’s unit is still a more conventional smart deadbolt, so it may suit buyers who want a lock-first product from a more established lock brand, but it does not bundle the same camera/doorbell package at this price.

The most interesting comparison is the SwitchBot WiFi Smart Lock Ultra with Keypad Vision at £239.99 and a higher 4.5★ rating. SwitchBot appears to win on customer sentiment and adds 3D face recognition plus Matter support, which will matter to some smart home users. The E330 counters with a lower price and the appeal of an integrated camera-doorbell-lock combo, but the SwitchBot looks stronger if your priority is ecosystem compatibility and review score.

Is the rating strong enough to trust?

A 4.2/5 rating from 3,352 reviews is respectable, not exceptional. It suggests most buyers are satisfied, but not so overwhelmingly that you can ignore the caveats around fitment and feature expectations. The sales rank of #169,961 in category is also a reminder that this is not a runaway bestseller in its niche.

The fact that the current price is the all-time lowest is the strongest practical reason to buy now. You are not paying a premium for early adoption, and the price has not drifted above its recorded average of £215.49.

What should UK buyers be careful about?

The biggest issue is door compatibility. The listing explicitly says it is compatible with most standard US and Canadian deadbolt spacings, which means many UK front doors may not be suitable without additional checks. That is the key warning here, and it is more important than any feature list.

The second caution is missing technical detail. There is no supplied IP rating, no stated storage capacity, no night-vision range, no battery backup duration, and no smart-lock encryption standard. Those omissions do not automatically make the product bad, but they do mean you should not buy it on marketing appeal alone.

Bottom line on value for money

For £215.49, the E330 offers a lot of hardware for the money: 2K video, fingerprint access, five unlock methods, auto-lock, remote control, and no monthly fee. That is a compelling bundle, especially at an all-time low price. But the value only lands if the lock fits your door and you are comfortable with the missing technical details in the listing.

If you want a multi-function front-door device and your door compatibility is confirmed, this is an appealing buy. If you need a UK-friendly, certification-heavy smart lock with clearer weatherproofing and ecosystem support, you should keep looking.