eufy E31 Fingerprint Smart Lock
- Under 0.3 second fingerprint unlock
- 10,000mAh rechargeable battery, up to 14 months
- Matter, Apple Home, Google Home, Alexa, SmartThings support
- Low battery alert at 20%, power save up to one more month
- 15-minute install without drilling
- 18 months electronic, 36 months mechanical coverage
- Fingerprint, app, keypad, key, voice entry
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A fingerprint deadbolt for homes already on Apple Home or another smart platform, with long battery life between charges. Dimensions, door fit range and finish are missing from the listing, so measure the door before ordering.
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ASIN: B0DP4T27BLModel: E31Category: Deadbolts
Overview
Eufy builds this deadbolt around a fingerprint reader that learns with each use, backed by a keypad, app, physical key and voice commands through Siri, Alexa or Google Assistant. A large rechargeable battery powers it, and it fits without drilling.
Platform support is the strong suit, with Matter and Apple Home alongside the usual assistants, so it slots into an existing setup. The listing skips door thickness, backset and finish, which leaves fit to the buyer to confirm.
Who it's for
Homes running Apple Home, Google Home or SmartThings get native control without an extra bridge. Owners of unusual doors should confirm fit with eufy first.
Pros and cons
- Fast fingerprint reader that adapts over time
- Long battery life between charges
- Matter and Apple Home support
- Low battery alert and power save mode
- Door thickness and backset not listed
- Battery life drops with frequent use
- Remote access may need a hub
- Finish and dimensions missing
Performance notes
Unlock speed rests on the fingerprint sensor, which improves recognition as it learns each finger. Battery life tracks daily unlock count, and a portable charger can power the lock long enough to open it if the cell runs flat.
Specifications
| Brand | eufy |
|---|---|
| Model | E31 |
| Capacity & performance | |
| Unlock speed | Under 0.3 seconds |
| Power & efficiency | |
| Battery life | Up to 14 months at 10 unlocks per day |
| Low battery alert | At 20%, power save up to one more month |
| Convenient Rechargeable Power System | 10,000mAh rechargeable battery |
| Compatibility & installation | |
| Connectivity Protocol | Wi-Fi, Matter |
| Installation | About 15 minutes, no drilling |
| Matter Over Thread For Multi-ecosystem Compatibility | Matter, Apple Home, Google Home, Alexa, SmartThings |
| Warranty & support | |
| Manufacturer Warranty Description | 18 months electronic, 36 months mechanical |
| Other details | |
| Lock Type | Smart deadbolt |
| Additional Features | Auto lock, event logs, real-time notifications, remote unlocking |
| All-in-one Unlocking Options | Fingerprint, app, keypad, physical key, voice |
Frequently asked questions
How do I keep the eufy E31 running when the battery gets low?
It alerts you at 20% charge and a power save mode lasts up to one more month. If the battery dies, a portable charger can power it to unlock.
Does the eufy E31 work with Apple Home?
Yes. It supports Matter and integrates with Apple Home, Google Home, Alexa and SmartThings.
Is drilling needed to install it?
No. The listing states about a 15-minute installation without drilling.
What is the warranty?
18 months of electronic protection and 36 months of mechanical coverage.