Device profile · Specifications & compatibility
Eufy Smart Lock E31
Eufy · Door Locks · Model T85F0
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- Eufy Smart Lock E31 lists Physical Key; Passcode; Matter.
- Check what is included and how entry works with an exhausted battery.
Browse more from Eufy or explore all door locks in our catalog.
- Recorded year
- 2024
- Recorded warranty
- 1.5 years
- Weight
- ?
The details that shape your choice
Eufy Smart Lock E31 Quick Features
Start with these specifications, then check the full details and conditions below.
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From specification to decision
Eufy Smart Lock E31: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
Physical-key entry is listed, adding a listed entry method alongside electronic controls. Check what is included and how entry works with an exhausted battery.
View Physical Key details →Passcode entry is listed, useful when access needs to be shared without handing over a physical key. Check code limits, expiry rules and whether remote code changes need extra hardware. Keypad
View Passcode details →Matter support is listed, making it a candidate for a compatible Matter setup after model and feature checks. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity. Matter 1.2 over Thread, certified by the CSA on 10 July 2024.
View Matter details →
What to consider
A microSD card slot is listed as unavailable; check the alternative storage routes.
View microSD card slot details →
Still needs verification
Confirm these details if they matter to your setup.
Questions About Eufy Smart Lock E31
Does Eufy Smart Lock E31 support a physical key?
Yes, according to the listed specifications. Check what is included and how entry works with an exhausted battery.
View Physical Key specifications →Does Eufy Smart Lock E31 support passcode entry?
Yes, according to the listed specifications. Check code limits, expiry rules and whether remote code changes need extra hardware. Keypad
View Passcode specifications →Does Eufy Smart Lock E31 support Matter?
Matter support is documented. This is the Australian product page. Confirm local hardware, lock fit and controller compatibility. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.
Source: Eufy Smart Lock E31 manufacturer product page · Checked 2026-10-04
View Matter specifications →Does Eufy Smart Lock E31 support fingerprint entry?
Fingerprint unlocking is supported. This is the Australian product page. Confirm local hardware, lock fit and controller compatibility. Check user capacity and backup-entry options; a listed sensor does not establish recognition reliability.
Source: Eufy Smart Lock E31 manufacturer product page · Checked 2026-10-04
View Fingerprint specifications →What is the battery runtime of Eufy Smart Lock E31?
Battery Life: 14 months. Check the stated workload and conditions. A catalog runtime is not a prediction of runtime in your installation.
View Battery Life specifications →Explore the full picture
Eufy Smart Lock E31 Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
3 of 45 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →
Lock System8 fields
| Remote | YesManufacturer sourceRemote app control is available. Eufy Smart Lock E31 manufacturer product page →
This is the Australian product page. Confirm local hardware, lock fit and controller compatibility. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsBuilt-in Wi-Fi, no bridge required |
|---|---|
| Bluetooth | No |
| Passcode | YesDetails & conditionsKeypad |
| Fingerprint | YesManufacturer sourceFingerprint unlocking is supported. Eufy Smart Lock E31 manufacturer product page →
This is the Australian product page. Confirm local hardware, lock fit and controller compatibility. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsUnlock in less than 0.3 seconds, self-improving recognition |
| Face Recognition | No |
| Nfc Tag | No |
| Apple Home Key | No |
| Physical Key | Yes |
Integrations6 fields
| Google Home | Yes |
|---|---|
| Alexa | Yes |
| Apple Home | YesDetails & conditionsVia Matter |
| SmartThings | YesDetails & conditionsVia Matter |
| Home Assistant | YesDetails & conditionsVia Matter: the lock is Matter certified over Thread, and the Home Assistant Matter integration supports locks (a Thread border router is needed). Not part of the community eufy Security integration's supported-devices list, which is a separate path. |
| Matter | YesManufacturer sourceMatter support is documented. Eufy Smart Lock E31 manufacturer product page →
This is the Australian product page. Confirm local hardware, lock fit and controller compatibility. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsMatter 1.2 over Thread, certified by the CSA on 10 July 2024. |
Alerts4 fields
| Door Lock Unlock | Yes |
|---|---|
| Tamper Proof Alert | Not recorded |
| Low Battery Alert | YesDetails & conditionsLow battery alert at 20% charge |
| Multiple Unlocking Failure Alert | Not recorded |
Automatic Lock3 fields
| Away | No |
|---|---|
| After Door Closed | YesDetails & conditionsTimer set in the app (1 second to 60 minutes) that starts after every unlock, whether or not the door is closed |
| Geolocation | Not recorded |
Connectivity7 fields
| 2.4 GHz Wi-Fi | Yes |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | YesDetails & conditionsThe CSA certificate lists Thread and Bluetooth as its transports, and the Amazon listing states Bluetooth, Matter and Wi-Fi. |
| Z Wave | No |
| Zigbee | No |
| Thread | Thread Border Router requiredDetails & conditionsMatter runs over Thread, so a Matter hub with a Thread border router (HomePod mini, Apple TV 4K, Nest Hub, Echo, SmartThings Station) is needed for Matter control. |
| Other | No |
Features5 fields
| One Time Password | Yes |
|---|---|
| Periodic Password | Yes |
| Anti Peep Password | YesDetails & conditionsRandom digits can be entered before and after the passcode (official product page) |
| Emergency Fingerprint | No |
| Doorbell | No |
Power3 fields
| Battery Type | Built-in |
|---|---|
| Battery Life | 14 months |
| Backup Battery | USB-C emergency charging |
Sensors1 fields
| Open Close | NoDetails & conditionseufy documents this model's auto-lock as timed locking without checking the door position |
|---|
Video8 fields
| Hd Video | No |
|---|---|
| 2k Video | No |
| Night Vision | No |
| Internal Storage | No |
| microSD card slot | No |
| Motion Detection | No |
| Range Of Detection | Not applicable / unspecified |
| Customizable Area | No |
How this device compares
Eufy Smart Lock E31 vs Other Similar Models
Statistical context from 47 door locks in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
2.4 GHz Wi-Fi: 34 of 47 known answers are Yes
Connectivity: 72% among explicit Yes/No answers; 0 of 47 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Bluetooth: 32 of 43 known answers are Yes
Connectivity: 74% among explicit Yes/No answers; 4 of 47 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Anti Peep Password: 28 of 36 known answers are Yes
Features: 78% among explicit Yes/No answers; 11 of 47 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
14 of 47 models are from Eufy
Counts door locks listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare Eufy Smart Lock E31 vs Similar Door Locks
See how Eufy Smart Lock E31 stacks up against other door locks in this catalog. Compare specifications, compatibility and pricing.
Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.