Device profile · Specifications & compatibility
Eufy FamiLock S3 Max
Eufy · Door Locks · Model FamiLock S3 Max
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- Eufy FamiLock S3 Max lists Battery Life: 4 months; Apple Home; Home Assistant.
- Check the stated workload and conditions.
- A catalog runtime is not a prediction of runtime in your installation.
Browse more from Eufy or explore all door locks in our catalog.
- Recorded year
- 2025
- Recorded warranty
- 1.5 years
- Weight
- ?
The details that shape your choice
Eufy FamiLock S3 Max Quick Features
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From specification to decision
Eufy FamiLock S3 Max: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
Apple Home support is listed as an integration option. Check the model, firmware, exposed controls and any additional hardware requirements. Via Matter
View Apple Home details →A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant details →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 →
What to consider
Fingerprint entry is listed as unavailable.
View Fingerprint details →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 FamiLock S3 Max
What is the battery runtime of Eufy FamiLock S3 Max?
Battery Life: 4 months. Check the stated workload and conditions. A catalog runtime is not a prediction of runtime in your installation.
View Battery Life specifications →Does Eufy FamiLock S3 Max work with Apple Home?
Yes, according to the listed specifications. Check the model, firmware, exposed controls and any additional hardware requirements. Via Matter
View Apple Home specifications →Does Eufy FamiLock S3 Max work with Home Assistant?
Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant specifications →Does Eufy FamiLock S3 Max 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 FamiLock S3 Max support passcode entry?
Yes, according to the listed specifications. Check code limits, expiry rules and whether remote code changes need extra hardware. Touchscreen keypad
View Passcode specifications →Explore the full picture
Eufy FamiLock S3 Max Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
2 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 | YesDetails & conditionsBuilt-in Wi-Fi, no bridge required |
|---|---|
| Bluetooth | No |
| Passcode | YesDetails & conditionsTouchscreen keypad |
| Fingerprint | No |
| Face Recognition | No |
| Nfc Tag | No |
| Apple Home Key | No |
| Physical Key | Yes |
Integrations6 fields
| Google Home | YesDetails & conditionsVia Matter |
|---|---|
| Alexa | YesDetails & conditionsVia Matter |
| Apple Home | YesDetails & conditionsVia Matter |
| SmartThings | YesDetails & conditionsVia Matter |
| Home Assistant | Yes |
| Matter | Yes |
Alerts4 fields
| Door Lock Unlock | Yes |
|---|---|
| Tamper Proof Alert | Not recorded |
| Low Battery Alert | Yes |
| Multiple Unlocking Failure Alert | Not recorded |
Automatic Lock3 fields
| Away | No |
|---|---|
| After Door Closed | Yes |
| Geolocation | Not recorded |
Connectivity7 fields
| 2.4 GHz Wi-Fi | Yes |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | No |
| Z Wave | No |
| Zigbee | No |
| Thread | No |
| Other | No |
Features5 fields
| One Time Password | Yes |
|---|---|
| Periodic Password | Yes |
| Anti Peep Password | Yes |
| Emergency Fingerprint | No |
| Doorbell | YesManufacturer sourceA doorbell is built into the lock. Eufy FamiLock S3 Max manufacturer product page →
Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsBuilt-in 2K HDR video doorbell with Rear Lock Video Screen |
Power3 fields
| Battery Type | Built-in |
|---|---|
| Battery Life | 4 months |
| Backup Battery | 4x AAA backup batteries |
Sensors1 fields
| Open Close | Not recorded |
|---|
Video8 fields
| Hd Video | YesDetails & conditions2K HDR camera, f/1.6 lens, 150° Head-to-Toe wide-angle view |
|---|---|
| 2k Video | YesManufacturer sourceThe integrated camera supports 2K video. Eufy FamiLock S3 Max manufacturer product page →
Document check only; not a hands-on test or verification of every regional or firmware variant. |
| Night Vision | Yes |
| Internal Storage | YesDetails & conditions16 GB built-in storage |
| microSD card slot | No |
| Motion Detection | Yes |
| Range Of Detection | Not recorded |
| Customizable Area | Not recorded |
How this device compares
Eufy FamiLock S3 Max 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
2k Video: 5 of 47 known answers are Yes
Video: 11% among explicit Yes/No answers; 0 of 47 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Hd Video: 5 of 47 known answers are Yes
Video: 11% among explicit Yes/No answers; 0 of 47 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Night Vision: 5 of 47 known answers are Yes
Video: 11% among explicit Yes/No answers; 0 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 FamiLock S3 Max vs Similar Door Locks
See how Eufy FamiLock S3 Max 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.