Eufy Smart Lock Touch and Wi-Fi, Reviewed

Smart locks live or die on one question: can you actually get in the door when you need to? The Eufy Smart Lock Touch and Wi-Fi, model T8510, answers that with more paths inside than almost anything at its price. Fingerprint, keypad, phone, or a physical key, four ways in, and this version adds built-in Wi-Fi so you can check and control it from anywhere without buying a separate bridge. For a lock that has to be both convenient and genuinely secure, that combination is the whole pitch.

What the Eufy Smart Lock Touch and Wi-Fi offers

Start with the headline feature: the fingerprint reader. Eufy claims a 0.3-second scan and a one-second unlock, and in practice it's fast enough that you stop thinking about it. You walk up, touch the sensor, and you're in before your hand leaves the door. The reader sits on the deadbolt itself, so there's no fumbling for a phone or remembering a code when your arms are full of groceries.

But a smart lock that only worked one way would be a liability, which is why the four-method design matters so much. Alongside the fingerprint, there's a backlit keypad for codes you can share with family or a dog walker, Bluetooth control through the eufy Security app, and a traditional keyhole as the ultimate fallback. If the battery dies, the reader glitches, or you simply hand a code to a guest, there's always another way through. That redundancy is exactly what you want from something guarding your front door.

The Wi-Fi difference

The "and Wi-Fi" in the name is the real upgrade over the standard Touch model. Earlier Eufy locks needed a separate Wi-Fi Bridge to reach the internet. This one has Wi-Fi built in, so remote lock and unlock, entry notifications, and status checks all work straight from the app without extra hardware sitting in a hallway. Get a ping the moment your kid gets home from school, lock up from the office when you can't remember if you did, all of it happens over your home network directly.

It also brings voice control into play. The lock works with Amazon Alexa and Google Assistant, so you can ask for a lock status or lock the door by voice. Unlocking by voice is deliberately gated behind a PIN for security reasons, which is the right call, a lock you can open by shouting across the room isn't a lock you want.

Security and build

Convenience means nothing if the hardware is flimsy, and this is where the T8510 earns real trust. It carries a BHMA Grade 2 security certification, the recognized standard for residential locks, so this isn't a gadget wearing a deadbolt costume. The body is zinc alloy and stainless steel, and the stainless deadbolt is rated to withstand well over a thousand kilograms of force. It's IP65 weatherproof and rated to operate from a brutal -30C all the way up to 70C, so a cold snap or a heatwave won't leave you locked out.

There's a privacy angle too that's easy to overlook. Fingerprint data is stored locally on the lock, not uploaded to a cloud server. For biometric information, that local-only approach is genuinely reassuring, your fingerprints never leave your front door.

Power and daily living

The lock runs on four AA batteries, and Eufy rates them for around twelve months of normal use. When they do run low, the app warns you well ahead, and if you ever get caught out, a USB port on the underside lets you jump it with a portable charger long enough to get inside. Auto-lock is the feature I'd never turn off: set it, and the deadbolt throws itself a set time after the door closes, so you can't forget to lock up on your way out.

Specs at a glance

• Model: T8510
• Entry methods: fingerprint, keypad code, app (Bluetooth), mechanical key
• Connectivity: built-in Wi-Fi plus Bluetooth
• Works with: Amazon Alexa, Google Assistant
• Security: BHMA Grade 2 certified, zinc alloy and stainless steel, IP65
• Power: 4 AA batteries, around 12-month life, USB emergency power
• Operating range: -30C to 70C

The verdict after living with it

I've reviewed enough smart locks to be wary of the ones that lean entirely on an app, because the day the app or the Wi-Fi has a bad morning is the day you're stuck on your own porch. The Eufy Smart Lock Touch and Wi-Fi sidesteps that trap by refusing to depend on any single method. Reviewed over weeks of daily comings and goings, the fingerprint reader stayed fast and accurate, the built-in Wi-Fi made remote checks effortless, and the sheer number of fallback options meant I never once felt nervous about being locked out.

The honest caveats are minor. Voice unlocking is limited by design, which is a feature rather than a flaw. The AA batteries are a slightly old-school choice next to rechargeable rivals, though the year-long life and USB backup take most of the sting out. And like any smart lock, installation asks a little more of you than swapping a dumb deadbolt. None of that dents the core result. For a lock that has to be secure first and clever second, the T8510 gets the priorities right, and the added convenience of built-in Wi-Fi and a near-instant fingerprint reader is the kind that quietly improves every single day. For anyone shopping a genuinely capable smart lock without stepping up to luxury pricing, this review lands firmly on the recommend side.