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eufy E31 Smart Security Door Lock

T85F0T11
EPIC DEAL
$379
$70 OFF¤
+ Delivery from $6
Deal ends 21/10/26
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Product Overview

The E31 Smart Security Door Lock unlocks your door using fingerprint, app control, keypad, physical key, or voice commands.

This smart lock is suitable for households looking to upgrade their entry security with flexible access options. Built-in Wi-Fi allows remote operation through the Eufy Security app, and compatibility with Google Assistant, Amazon Alexa, and Apple HomeKit supports integration into existing smart home routines.

A 10,000mAh rechargeable battery powers the lock for up to 14 months between charges, reducing maintenance for busy homes. Installation is straightforward, with a battery-powered system that suits self-installation. The lock's local entry methods remain available even if Wi-Fi drops out, ensuring reliable access.

Model T85F0T11 in black comes with an 18 month manufacturer's warranty.

Key Features

  • Unlock in less than 0.3 seconds using the fingerprint, app control, the keypad, physical key, or voice commands
  • Up to 14 Months Battery Life
  • Remote Control via HomePod or Other Hubs
  • Easy Installation

Product Reviews of eufy E31 Smart Security Door Lock

eufy E31 Smart Security Door Lock T85F0T11

Overall Rating Snapshot

4.0 stars

4 out of 5 stars from 4 reviews

75% of users recommend this product

3
0
1
0
  • 5 out of 5

    Very good product

    Over all nice product.

    Tommy

    Confirmed purchase 20 July 2026

    Published on 18 August 2026

    Yes, I recommend this product.

    This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.

  • 5 out of 5

    Very good lock

    Works very well

    Tommy

    Confirmed purchase 20 July 2026

    Published on 13 August 2026

    Yes, I recommend this product.

    This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.

  • 2 out of 5

    Its alright but fingers print has issues

    After 2 days, the finger print scan stopped working, but it was managed well by the good guys Carsaldine store.

    Gourav

    Confirmed purchase 2 June 2026

    Published on 23 June 2026

    This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.

  • 4 out of 5

    So far so good

    So far so good. app is easy to use.

    Peter

    Confirmed purchase 23 March 2026

    Published on 15 April 2026

    Yes, I recommend this product.

    This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.

You've viewed 4 of 4 reviews

ABOUT THE GOOD GUYS REVIEWSThe Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.

Key Specifications

Brand:
eufy
Model Number:
T85F0T11
Remote Operation:
Yes - via eufy security appYes
Smart Home Compatible:
SmartThings
Unlocking Methods:
Fingerprint, app control, the keypad, physical key, or voice commands via Siri, Alexa, or Google Assistant

Smart Features

Works with Google Assistant:
Yes
Works with Amazon Alexa:
Yes
Works with Apple HomeKit:
Yes

Power & Charging

Battery:
10,000mAh rechargeable battery - Up to 14 Months Battery Life

Connections

Wi-Fi:
Built in

Safety

IP Rating:
IP53
Installation:
Battery powered system self-installation suitable

General Information

Type:
Smart Lock
Colour:
Black

Warranty

Manufacturer's Warranty:
18 Month

Smart Features

Works with Google Assistant:
Yes
Works with Amazon Alexa:
Yes
Works with Apple HomeKit:
Yes

Connections

Wi-Fi:
Built in

General Information

Type:
Smart Lock
Colour:
Black

Box Dimensions

Box Height (mm):
205
Box Width (mm):
195
Box Depth (mm):
112
Box Weight (kg):
2

The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.

At a glance

The eufy E31 Smart Security Door Lock is a versatile smart lock for households that want easier, more flexible entry and remote control. It suits families and busy homes with fingerprint, keypad, app, key and voice access, plus up to 14 months of battery life from a 10,000mAh rechargeable battery. A key limitation is that it offers practical convenience rather than the higher-end specialised security features found on some premium locks.

What it’s great for

  • Everyday Home Security
  • Family Access Management
  • Keyless Entry Convenience
  • Remote Door Control
  • Smart Home Routines

Where it works best

  • Family Homes
  • Townhouses
  • Main Entry Doors
  • Smart Homes
  • Busy Households

Who it’s for

  • Homeowners
  • Families
  • Busy Professionals
  • Smart Home Users
  • Households Upgrading Entry Security

Things to consider

It focuses on convenient everyday access and smart home compatibility, but premium alternatives may offer more specialised security hardware or advanced enterprise-style access management.

Smart home integration score

9/10 - built-in Wi-Fi and support for Google Assistant, Amazon Alexa and Apple HomeKit make it easy to fit into common smart home setups.

Family member access ease

High - multiple unlock methods make it practical for adults, kids and visitors with different access preferences.

Rental property suitability

Moderate - convenient keyless access is appealing, but suitability depends on landlord approval and door compatibility.

Security enhancement rating

8/10 - adds layered access options and remote control convenience, while retaining local entry if Wi-Fi is unavailable.

Key benefits

  • Fingerprint Unlock: Lets authorised users open the door quickly without needing to carry keys.
  • Built-in Wi-Fi: Enables remote locking, unlocking and monitoring through the Eufy Security app without requiring separate add-on connectivity.
  • Multiple Entry Methods: Supports fingerprint, app control, keypad, physical key and voice commands to suit different users and situations.
  • Voice Assistant Compatibility: Works with Google Assistant, Amazon Alexa and Apple HomeKit for easier smart home integration.
  • Rechargeable Battery: The 10,000mAh battery can deliver up to 14 months of use between charges, reducing regular maintenance.
  • Offline Access Reliability: Local unlocking methods remain available even if Wi-Fi drops out, helping maintain access when internet service is unavailable.
  • Straightforward Installation: Battery-powered operation supports simpler self-installation for households upgrading an entry door.
  • Flexible Household Access: Makes it easier to manage entry for family members with different preferences for app, keypad, fingerprint or key access.

Q: Does this smart lock need a separate Wi-Fi bridge?

A: No. The eufy E31 has built-in Wi-Fi, so remote locking and unlocking works through the Eufy Security app without adding a separate bridge. That makes it a simpler fit for homes wanting app control with fewer extra parts.

Q: What happens if the Wi-Fi drops out at home?

A: The eufy E31 can still be unlocked locally if Wi-Fi drops out. Fingerprint entry, keypad access and the physical key remain available, so remote app control is the main feature affected rather than basic door access.

Q: How long does the E31 battery last between charges?

A: The eufy E31 uses a 10,000mAh rechargeable battery rated for up to 14 months between charges. That suits homes wanting lower battery maintenance, but actual time will depend on how often the lock is used and controlled remotely.

Q: Can you still open it if the battery runs flat?

A: Yes. The eufy E31 includes a physical key, so there is a non-digital backup if the rechargeable battery is flat. That matters for front doors, because local access does not depend on Wi-Fi or the app being available at the time.

Q: Is the eufy E31 compatible with Apple HomeKit?

A: Yes. The eufy E31 supports Apple HomeKit, and it also works with Google Assistant and Amazon Alexa for voice control within a supported smart home setup. It suits households already using one of those mainstream platforms.

Q: Does the eufy E31 support Matter for smart homes?

A: Matter support is not listed for the eufy E31. Its documented smart home compatibility is Apple HomeKit, Google Assistant and Amazon Alexa, so buy it for those platforms rather than assuming broader Matter-based interoperability.

Q: Can I install this lock myself without door wiring?

A: Yes. The eufy E31 is battery powered and described as suitable for self-installation, so it does not rely on door wiring for normal use. It is aimed at households upgrading an existing entry lock rather than adding hardwired access control.

Q: Is this smart lock a good fit for renters?

A: It can suit some rental situations, but it is a better fit for owner-approved door upgrades than temporary setups. The eufy E31 is designed as a replacement entry lock, so permission and the ability to change hardware are the key considerations.